Alert archive / New York / Lake Effect Snow Warnings in 2017

Lake Effect Snow Warning 13, NWS Buffalo, NY

December 28, 20177 counties in New York

NWS Buffalo, NY issued this lake effect snow warning at Dec 28, 2017, 8:41 PM EST for 7 counties in New York. It took effect at Dec 29, 2017, 1:00 PM EST. It was in force for 44 hr. 59 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 28, 2017, 8:41 PM EST (01:41 UTC)
In effect from
Dec 29, 2017, 1:00 PM EST
Expired
Dec 31, 2017, 9:08 AM EST
In force
44 hr
Issued by
NWS Buffalo, NY

Counties Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Monroe County, NY, Oswego County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 81 km from the middle of the area, began a volume at 01:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 29, 8:36 PM ESTSNOW 4.2Hamburg, NY
Dec 30, 1:00 AM ESTSNOW 6.51 S North Evans, NY
Dec 30, 5:00 AM ESTSNOW 101 Wnw Fredonia, NY24-HOUR SNOWFALL.
Dec 30, 5:24 AM ESTSNOW 101 Wnw Fredonia, NY
Dec 30, 6:00 AM ESTSNOW 10.51 Sse Silver Creek, NY24-HOUR SNOWFALL.
Dec 30, 6:00 AM ESTSNOW 10.5Silver Creek, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 4.73 Wsw Elma, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 5.8Wales, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 7.91 S Dunkirk, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 7.91 Sw Dunkirk, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 8.5Wsw Hamburg, NY24-HOUR SNOWFALL.
Dec 30, 7:00 AM ESTSNOW 14.61 Sse Eden, NY24-HOUR SNOWFALL.
Dec 30, 7:30 AM ESTSNOW 7.41 W Colden, NY24-HOUR SNOWFALL.
Dec 30, 7:45 AM ESTSNOW 72 Ne Boston, NY24-HOUR SNOWFALL.
Dec 30, 8:00 AM ESTSNOW 52 Se Glenwood, NY24-HOUR SNOWFALL.
Dec 30, 8:00 AM ESTSNOW 6.61 W Lakeville, NY24-HOUR SNOWFALL.
Dec 30, 8:00 AM ESTSNOW 8.22 Ene Colden, NY24-HOUR SNOWFALL.
Dec 30, 8:30 AM ESTSNOW 3.6East Aurora, NY24-HOUR SNOWFALL.
Dec 30, 8:30 AM ESTSNOW 3.83 Nne East Aurora, NY24-HOUR SNOWFALL.
Dec 30, 9:00 AM ESTSNOW 13Perrysburg, NY24-HOUR SNOWFALL.
Dec 30, 9:35 AM ESTSNOW 14.22 W Dean, NY
Dec 30, 11:24 AM ESTSNOW 8.5Hamburg, NY
Dec 30, 11:30 AM ESTSNOW 182 Sw Forestville, NY24-HOUR SNOWFALL.
Dec 30, 11:30 AM ESTSNOW 182 Sw Forestville, NY
Dec 30, 3:44 PM ESTSNOW 6Fulton, NY
Dec 30, 3:45 PM ESTSNOW 4East Bay Park, NY130PM TO 345PM
Dec 30, 9:07 PM ESTSNOW 13Sterling, NY
Dec 30, 9:30 PM ESTSNOW 11Wolcott, NY
Dec 30, 10:00 PM ESTSNOW 3.9Buffalo Airport, NY
Dec 30, 10:40 PM ESTSNOW 17.4Perrysburg, NY
Dec 30, 11:00 PM ESTSNOW 6.52 Nw Rochester, NY
Dec 30, 11:30 PM ESTSNOW 4Irondequoit, NY
Dec 30, 11:30 PM ESTSNOW 81 N Greece, NY
Dec 30, 11:30 PM ESTSNOW 12Hilton, NY
Dec 31, 12:05 AM ESTSNOW 7.5Forest Lawn, NY
Dec 31, 1:00 AM ESTSNOW 6Rochester Airport, NY
Dec 31, 5:00 AM ESTSNOW 121 Wnw Fredonia, NY
Dec 31, 5:30 AM ESTSNOW 8Fulton, NY
Dec 31, 6:00 AM ESTSNOW 4.22 Sse Palermo, NY24-HOUR SNOWFALL.
Dec 31, 6:00 AM ESTSNOW 4.27 Nne Phoenix, NY24-HOUR SNOWFALL.
Dec 31, 6:00 AM ESTSNOW 8.55 Ese Oswego, NY24-HOUR SNOWFALL.
Dec 31, 6:50 AM ESTSNOW 4.12 Sse North Chili, NY24-HOUR SNOWFALL.
Dec 31, 6:54 AM ESTSNOW 6.9Rochester Airport, NY24-HOUR SNOWFALL.
Dec 31, 7:00 AM ESTSNOW 4.52 Ne Boston, NY24-HOUR SNOWFALL.
Dec 31, 7:00 AM ESTSNOW 6.32 Sw Walworth, NY24-HOUR SNOWFALL.
Dec 31, 7:00 AM ESTSNOW 6.45 Wnw Rochester, NY24-HOUR SNOWFALL.
Dec 31, 7:00 AM ESTSNOW 6.61 Sse Eden, NY24-HOUR SNOWFALL.
Dec 31, 7:00 AM ESTSNOW 8.2Fulton, NY24-HOUR SNOWFALL.
Dec 31, 7:27 AM ESTSNOW 4.23 Ese Macedon, NY24-HOUR SNOWFALL.
Dec 31, 7:30 AM ESTSNOW 5.41 W Colden, NY24-HOUR SNOWFALL.
Dec 31, 7:30 AM ESTSNOW 10.6Se Minetto, NY24-HOUR SNOWFALL.
Dec 31, 8:00 AM ESTSNOW 3.52 Se Glenwood, NY24-HOUR SNOWFALL.
Dec 31, 8:00 AM ESTSNOW 3.83 W Webster, NY24-HOUR SNOWFALL.
Dec 31, 8:00 AM ESTSNOW 62 Ene Colden, NY24-HOUR SNOWFALL.
Dec 31, 8:00 AM ESTSNOW 63 N Churchville, NY24-HOUR SNOWFALL.
Dec 31, 8:00 AM ESTSNOW 6Sandy Creek, NY
Dec 31, 8:00 AM ESTSNOW 6.2W Fulton, NY24-HOUR SNOWFALL.
Dec 31, 8:30 AM ESTSNOW 3.74 Wnw Webster, NY24-HOUR SNOWFALL.
Dec 31, 8:45 AM ESTSNOW 52 Nw Palmyra, NY24-HOUR SNOWFALL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.7 hours before the alert went out and 78 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2017-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2017-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

000 
WWUS41 KBUF 290141
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
841 PM EST Thu Dec 28 2017

NYZ019-020-085-290945-
/O.UPG.KBUF.WS.A.0011.171229T1200Z-171231T0000Z/
/O.NEW.KBUF.LE.W.0013.171229T1800Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
841 PM EST Thu Dec 28 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 1 PM FRIDAY TO 4 AM
EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult at times. Total snow accumulations of 15 to 20 inches
  are expected in the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
  greatest accumulations are expected along the Lake Erie shore
  and the Chautauqua Ridge.

* WHEN...1 PM Friday to 4 AM Sunday.

* ADDITIONAL DETAILS...Heavy lake effect snow will result in very
  difficult travel conditions at times with deep snow cover on 
  roads and very low visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4272 7858 4271 7891 
        4260 7926 4232 7975 4199 7977 4202 7956 4217 7933 
        4220 7914 4232 7898 4234 7879 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4243 7955 4241 7955 4232 7975 4219 7977 4220 7962 
        4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4265 7883 
        4262 7922 4232 7975 4199 7977 4201 7947 4199 7947 
        4202 7914 4207 7911 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ007-008-290945-
/O.CON.KBUF.WC.W.0001.000000T0000Z-171229T1500Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
841 PM EST Thu Dec 28 2017

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Dangerously cold wind chills expected. The dangerously 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin. Expect wind chills to range from 20 
  below zero to 30 below zero.

* WHERE...Jefferson and Lewis counties.

* WHEN...Now to 10 AM Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ006-290945-
/O.CON.KBUF.WC.Y.0004.000000T0000Z-171229T1500Z/
Oswego-
Including the city of Oswego
841 PM EST Thu Dec 28 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 10 below zero to 15 below 
  zero.

* WHERE...Oswego county.

* WHEN...Now to 10 AM Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

HITCHCOCK
13 follow-up statements
777 
WWUS41 KBUF 290801
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
301 AM EST Fri Dec 29 2017

NYZ007-008-290915-
/O.CAN.KBUF.WC.W.0001.000000T0000Z-171229T1500Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
301 AM EST Fri Dec 29 2017

...WIND CHILL WARNING IS CANCELLED...

Winds are calm with slowly rising temperatures expected through
daybreak.

$$

NYZ006-290915-
/O.CAN.KBUF.WC.Y.0004.000000T0000Z-171229T1500Z/
Oswego-
Including the city of Oswego
301 AM EST Fri Dec 29 2017

...WIND CHILL ADVISORY IS CANCELLED...

Winds are calm with slowly rising temperatures expected through
daybreak.

$$

NYZ019-020-085-291600-
/O.CON.KBUF.LE.W.0013.171229T1800Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
301 AM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 4 AM EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult to impossible. Total snow accumulations of 12 to 20 
  inches are expected in the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
  greatest accumulations are expected along the Lake Erie shore
  and the Chautauqua Ridge.

* WHEN...1 PM today to 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4272 7858 4271 7891 
        4260 7926 4232 7975 4199 7977 4202 7956 4217 7933 
        4220 7914 4232 7898 4234 7879 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4243 7955 4241 7955 4232 7975 4219 7977 4220 7962 
        4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4265 7883 
        4262 7922 4232 7975 4199 7977 4201 7947 4199 7947 
        4202 7914 4207 7911 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$
987 
WWUS41 KBUF 290840
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
340 AM EST Fri Dec 29 2017

NYZ019-020-085-291645-
/O.CON.KBUF.LE.W.0013.171229T1800Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
340 AM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 4 AM EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult to impossible. Total snow accumulations of 12 to 20 
  inches are expected in the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
  greatest accumulations are expected along the Lake Erie shore
  and the Chautauqua Ridge. 

* WHEN...1 PM today to 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4272 7858 4271 7891 
        4260 7926 4232 7975 4199 7977 4202 7956 4217 7933 
        4220 7914 4232 7898 4234 7879 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4243 7955 4241 7955 4232 7975 4219 7977 4220 7962 
        4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4265 7883 
        4262 7922 4232 7975 4199 7977 4201 7947 4199 7947 
        4202 7914 4207 7911 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ012-291645-
/O.NEW.KBUF.WW.Y.0036.171230T0600Z-171231T0900Z/
Wyoming-
Including the city of Warsaw
340 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM SATURDAY TO 4 AM
EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Wyoming county.

* WHEN...1 AM Saturday to 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-291645-
/O.NEW.KBUF.WW.Y.0036.171230T1100Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
340 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 7 AM
EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Niagara and Orleans counties. Heaviest snow along and
  north of Route 104.

* WHEN...6 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ007-291645-
/O.NEW.KBUF.WW.Y.0036.171230T1500Z-171231T1200Z/
Jefferson-
Including the city of Watertown
340 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM SATURDAY TO 7 AM
EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on slippery road 
  conditions. Total snow accumulations of 3 to 5 inches are 
  expected in the most persistent lake snows.

* WHERE...Jefferson county.

* WHEN...10 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Cold wind chills as low as 20 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ003>006-291645-
/O.NEW.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
340 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM SATURDAY TO 10 AM
EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Monroe, Wayne, Northern Cayuga, and Oswego counties.

* WHEN...2 PM Saturday to 10 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

Thomas
850 
WWUS41 KBUF 291616
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
1116 AM EST Fri Dec 29 2017

NYZ019-020-085-300030-
/O.CON.KBUF.LE.W.0013.171229T1800Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
1116 AM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very 
  difficult to impossible. Total snow accumulations of 12 to 20 
  inches are expected in the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. 
  The greatest accumulations are expected along the Lake Erie 
  shore and the Chautauqua Ridge.

* WHEN...Until 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4272 7858 4271 7891 
        4260 7926 4232 7975 4199 7977 4202 7956 4217 7933 
        4220 7914 4232 7898 4234 7879 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4243 7955 4241 7955 4232 7975 4219 7977 4220 7962 
        4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4265 7883 
        4262 7922 4232 7975 4199 7977 4201 7947 4199 7947 
        4202 7914 4207 7911 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ012-300030-
/O.CON.KBUF.WW.Y.0036.171230T0600Z-171231T0900Z/
Wyoming-
Including the city of Warsaw
1116 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM SATURDAY
TO 4 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Wyoming county.

* WHEN...1 AM Saturday to 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-300030-
/O.CON.KBUF.WW.Y.0036.171230T1100Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
1116 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Niagara and Orleans counties. Heaviest snow along and 
  north of Route 104.

* WHEN...6 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ007-300030-
/O.CON.KBUF.WW.Y.0036.171230T1500Z-171231T1200Z/
Jefferson-
Including the city of Watertown
1116 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on slippery road 
  conditions. Total snow accumulations of 3 to 5 inches are 
  expected in the most persistent lake snows.

* WHERE...Jefferson county.

* WHEN...10 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 20 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ003>006-300030-
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
1116 AM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM SATURDAY
TO 10 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Monroe, Wayne, Northern Cayuga, and Oswego counties.

* WHEN...2 PM Saturday to 10 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

Church
900 
WWUS41 KBUF 291900
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
200 PM EST Fri Dec 29 2017

NYZ003-004-300300-
/O.UPG.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
/O.EXB.KBUF.LE.W.0013.171230T1900Z-171231T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
200 PM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 2 PM SATURDAY TO 10 AM
EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult. Total snow accumulations of 6 to 12 inches are 
  expected in the most persistent lake snows.

* WHERE...Monroe and Wayne counties, mainly north and east of
  Rochester. Greatest snowfall accumulations expected along and 
  north of Route 104.

* WHEN...2 PM Saturday to 10 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Cold wind chills as low as 15 below zero 
  will cause frostbite in as little as 30 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4340 7673 4333 7738 4329 7744 4339 7802 
        4321 7802 4318 7767 4311 7741 4307 7670 
TIME Y17M12D30T1900Z-Y17M12D31T0300Z
COORD...4335 7670 4331 7695 4333 7738 4327 7745 
        4339 7798 4319 7779 4303 7748 4302 7670 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-300300-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
200 PM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...

* WHAT...Heavy lake effect snow occurring. Travel will be very
  difficult to impossible. Additional snow accumulations of 12 to
  20 inches are expected in the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
  greatest accumulations are expected along the Lake Erie shore
  and the Chautauqua Ridge, including the I-90 Thruway corridor.

* WHEN...Until 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Cold wind chills as low as 15 below zero 
  will cause frostbite in as little as 30 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4271 7891 4260 7926 
        4232 7975 4199 7977 4202 7956 4217 7933 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4269 7880 4270 7909 4232 7975 
        4219 7977 4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4202 7914 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ012-300300-
/O.CON.KBUF.WW.Y.0036.171230T0600Z-171231T0900Z/
Wyoming-
Including the city of Warsaw
200 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM SATURDAY
TO 4 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Wyoming county, with greatest accumulations expected in
  the southwestern portion of the county.

* WHEN...1 AM Saturday to 4 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-300300-
/O.CON.KBUF.WW.Y.0036.171230T1100Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
200 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Niagara and Orleans counties.  Heaviest snow along and 
  north of Route 104.

* WHEN...6 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ007-300300-
/O.CON.KBUF.WW.Y.0036.171230T1500Z-171231T1200Z/
Jefferson-
Including the city of Watertown
200 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on slippery road 
  conditions. Total snow accumulations of 3 to 5 inches are 
  expected in the most persistent lake snows.

* WHERE...Jefferson county. Greatest accumulations expected along
  and west of I-81, closer to the Lake Ontario shoreline.

* WHEN...10 AM Saturday to 7 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Dangerously cold wind chills as low as 35 below zero 
  will cause frostbite in as little as 10 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ005-006-300300-
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
200 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM SATURDAY
TO 10 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego counties. Greatest
  accumulations expected near the Lake Ontario shoreline.

* WHEN...2 PM Saturday to 10 AM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 20 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

Church
190 
WWUS41 KBUF 300230
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
930 PM EST Fri Dec 29 2017

NYZ019-020-085-301030-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
930 PM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...

* WHAT...Heavy lake effect snow. Travel will be very difficult.
  Additional snow accumulations of 9 to 18 inches are expected in
  the most persistent lake snows.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
  greatest accumulations are expected along the Lake Erie shore 
  and the Chautauqua Ridge, including the I-90 Thruway corridor.

* WHEN...Until 4 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Cold wind chills as low as 15 below zero 
  will cause frostbite in as little as 30 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4246 7859 4267 7850 4271 7891 4260 7926 
        4232 7975 4199 7977 4202 7956 4217 7933 
TIME Y17M12D29T1800Z-Y17M12D30T0300Z
COORD...4254 7876 4269 7880 4270 7909 4232 7975 
        4219 7977 4224 7940 4236 7918 4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4202 7914 4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ003-004-301030-
/O.CON.KBUF.LE.W.0013.171230T1900Z-171231T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
930 PM EST Fri Dec 29 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 2 PM SATURDAY
TO 10 AM EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult. Total snow accumulations of 6 to 12 inches are 
  expected in the most persistent lake snows.

* WHERE...Monroe and Wayne counties.

* WHEN...From 2 PM Saturday to 10 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Cold wind chills as low as 15 below zero 
  will cause frostbite in as little as 30 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4340 7673 4333 7738 4329 7744 4339 7802 
        4321 7802 4318 7767 4311 7741 4307 7670 
TIME Y17M12D30T1900Z-Y17M12D31T0300Z
COORD...4335 7670 4331 7695 4333 7738 4327 7745 
        4339 7798 4319 7779 4303 7748 4302 7670 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ012-301030-
/O.CON.KBUF.WW.Y.0036.171230T0600Z-171231T0900Z/
Wyoming-
Including the city of Warsaw
930 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM SATURDAY
TO 4 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Wyoming county, with the greatest accumulations 
  expected in the southwestern portion of the county.

* WHEN...From 1 AM Saturday to 4 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-301030-
/O.CON.KBUF.WW.Y.0036.171230T1100Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
930 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Niagara and Orleans counties.

* WHEN...From 6 AM Saturday to 7 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 15 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ007-301030-
/O.CON.KBUF.WW.Y.0036.171230T1500Z-171231T1200Z/
Jefferson-
Including the city of Watertown
930 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 7 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on slippery road 
  conditions. Total snow accumulations of 3 to 5 inches are 
  expected in the most persistent lake snows.

* WHERE...Jefferson county.

* WHEN...From 10 AM Saturday to 7 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Dangerously cold wind chills as low as 35 below zero 
  will cause frostbite in as little as 10 minutes to exposed 
  skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ005-006-301030-
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
930 PM EST Fri Dec 29 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM SATURDAY
TO 10 AM EST SUNDAY...

* WHAT...Lake effect snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego counties. Greatest
  accumulations expected near the Lake Ontario shoreline.

* WHEN...From 2 PM Saturday to 10 AM EST Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Cold wind chills as low as 20 below zero will cause 
  frostbite in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

JJR/CHURCH
650 
WWUS41 KBUF 300838
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
338 AM EST Sat Dec 30 2017

NYZ012-301645-
/O.CAN.KBUF.WW.Y.0036.000000T0000Z-171231T0900Z/
/O.NEW.KBUF.WW.Y.0037.171230T1500Z-171231T0900Z/
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Wyoming-
Including the city of Warsaw
338 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO
4 AM EST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills
  expected. Plan on slippery road conditions. Total snow
  accumulations of 3 to 5 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Wyoming county. Lake effect snow will mainly be across
  far southwestern portions of the county.

* WHEN...For the Winter Weather Advisory, 10 AM today to 4 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ003-004-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.CON.KBUF.LE.W.0013.171230T1900Z-171231T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
338 AM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 10 AM EST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Heavy lake effect snow expected. Very cold wind chills
  expected. Plan on difficult travel conditions. Total snow
  accumulations of 5 to 10 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Monroe and Wayne counties.

* WHEN...For the Lake Effect Snow Warning, 2 PM today to 10 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of 15 
below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4340 7673 4333 7738 4329 7744 4331 7765 
        4339 7802 4321 7802 4318 7767 4311 7741 4307 7691 
        4307 7670 
TIME Y17M12D30T1900Z-Y17M12D31T0300Z
COORD...4335 7670 4331 7695 4333 7738 4327 7745 
        4339 7798 4333 7788 4319 7779 4303 7748 4300 7695 
        4302 7670 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
338 AM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Heavy lake effect snow occurring. Very cold wind chills 
  expected. Plan on difficult travel conditions. Additional snow 
  accumulations of 6 to 12 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Chautauqua, Northwestern Cattaraugus, and Southern Erie
  counties.

* WHEN...For the Lake Effect Snow Warning, until 4 AM Sunday. 
  For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4232 7975 4219 7977 4220 7962 4224 7940 4236 7918 
        4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4199 7947 4202 7914 4207 7911 
        4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ001-002-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.EXT.KBUF.WW.Y.0036.171230T1900Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
338 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON
TO 7 AM EST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills 
  expected. Plan on slippery road conditions. Total snow 
  accumulations of 3 to 5 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, 2 PM today to 7 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ007-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.CON.KBUF.WW.Y.0036.171230T1500Z-171231T1200Z/
Jefferson-
Including the city of Watertown
338 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 AM EST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills
  expected. Plan on slippery road conditions. Total snow
  accumulations of 3 to 5 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 15 below
  zero to 25 below zero.

* WHERE...Jefferson county.

* WHEN...For the Winter Weather Advisory, 10 AM today to 7 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ005-006-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
338 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 10 AM EST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills 
  expected. Plan on difficult travel conditions. Total snow 
  accumulations of 4 to 8 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Winter Weather Advisory, 2 PM today to 10 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ008-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Lewis-
Including the city of Lowville
338 AM EST Sat Dec 30 2017

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 15 below zero to 25 below 
  zero.

* WHERE...Lewis county.

* WHEN...1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-014-021-301645-
/O.NEW.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Northern Erie-Genesee-Livingston-Ontario-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, Canandaigua, 
and Wellsville
338 AM EST Sat Dec 30 2017

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 6 PM EST SUNDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 10 below zero to 20 
  below zero.

* WHERE...Northern Erie, Genesee, Livingston, Ontario, and 
  Allegany counties.

* WHEN...1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

Apffel
287 
WWUS41 KBUF 301645
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
1145 AM EST Sat Dec 30 2017

NYZ003-004-310045-
/O.CON.KBUF.LE.W.0013.171230T1900Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
1145 AM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Heavy lake effect snow expected. Very cold wind chills
  expected. Plan on difficult travel conditions. Total snow
  accumulations of 5 to 10 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Monroe and Wayne counties, greatest accumulations
  expected north and east of Rochester.

* WHEN...For the Lake Effect Snow Warning, 2 PM today to 10 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4340 7673 4333 7738 4329 7744 4331 7765 
        4339 7802 4321 7802 4318 7767 4311 7741 4307 7691 
        4307 7670 
TIME Y17M12D30T1900Z-Y17M12D31T0300Z
COORD...4335 7670 4331 7695 4333 7738 4327 7745 
        4339 7798 4333 7788 4319 7779 4303 7748 4300 7695 
        4302 7670 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-310045-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
1145 AM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Heavy lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of 4 to 7 inches are expected in the most
  persistent lake snows, resulting in storm total accumulations of
  12 to 20 inches in the most persistent lake snows. Expect wind
  chills to range from 10 below zero to 20 below zero.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.

* WHEN...For the Lake Effect Snow Warning, until 4 AM Sunday. 
  For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4232 7975 4219 7977 4220 7962 4224 7940 4236 7918 
        4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4199 7947 4202 7914 4207 7911 
        4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ012-310045-
/O.CON.KBUF.WW.Y.0037.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Wyoming-
Including the city of Warsaw
1145 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills 
  expected. Plan on slippery road conditions. Additional snow 
  accumulations of 3 to 5 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 15 
  below zero to 20 below zero.

* WHERE...Wyoming county.

* WHEN...For the Winter Weather Advisory, until 4 AM Sunday. For 
  the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ001-002-310045-
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
1145 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills
  expected. Plan on slippery road conditions. Total snow
  accumulations of 3 to 6 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, 2 PM today to 7 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ007-310045-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Jefferson-
Including the city of Watertown
1145 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on slippery road conditions. Additional snow
  accumulations of 2 to 4 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 15 below
  zero to 29 below zero.

* WHERE...Jefferson county.

* WHEN...For the Winter Weather Advisory, until 7 AM Sunday. For 
  the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ005-006-310045-
/O.CON.KBUF.WW.Y.0036.171230T1900Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
1145 AM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Lake effect snow expected. Very cold wind chills
  expected. Plan on difficult travel conditions. Total snow
  accumulations of 4 to 8 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Winter Weather Advisory, 2 PM today to 10 AM 
  Sunday. For the Wind Chill Advisory, 1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ008-310045-
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Lewis-
Including the city of Lowville
1145 AM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 20 below zero to 29 
  below zero.

* WHERE...Lewis county.

* WHEN...1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-014-021-310045-
/O.CON.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
Northern Erie-Genesee-Livingston-Ontario-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, Canandaigua, 
and Wellsville
1145 AM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 PM EST
SUNDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 10 below zero to 20 
  below zero.

* WHERE...Northern Erie, Genesee, Livingston, Ontario, and 
  Allegany counties.

* WHEN...1 AM to 6 PM Sunday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

Church
469 
WWUS41 KBUF 301923
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
223 PM EST Sat Dec 30 2017

NYZ007-310330-
/O.UPG.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.NEW.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
Jefferson-
Including the city of Watertown
223 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL WARNING IN EFFECT FROM 1 AM SUNDAY TO 10 AM EST
MONDAY...

* WHAT... Lake effect snow occurring. Dangerously cold wind chills
  expected. Plan on slippery road conditions. Additional snow
  accumulations of up to 2 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 25 below
  zero to 35 below zero tonight, and 25 below zero to 40 below 
  zero Sunday night.

* WHERE...Jefferson county.

* WHEN...For the Wind Chill Warning, 1 AM Sunday to 10 AM 
  Monday. For the Winter Weather Advisory, until 7 AM Sunday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ008-310330-
/O.UPG.KBUF.WC.Y.0005.171231T0600Z-171231T2300Z/
/O.NEW.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
Lewis-
Including the city of Lowville
223 PM EST Sat Dec 30 2017

...WIND CHILL WARNING IN EFFECT FROM 1 AM SUNDAY TO 10 AM EST
MONDAY...

* WHAT...Dangerously cold wind chills expected. The dangerously
  cold wind chills will cause frostbite in as little as 10 minutes
  to exposed skin. Expect wind chills to range from 25 below zero
  to 35 below zero tonight, and from 30 below zero to 40 below 
  zero Sunday night.

* WHERE...Lewis county.

* WHEN...1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ003-004-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
223 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Heavy lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of 6 to 12 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Monroe and Wayne counties, greatest snow accumulations
  expected north and east of Rochester.

* WHEN...For the Lake Effect Snow Warning, until 10 AM Sunday. 
  For the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4340 7673 4333 7738 4329 7744 4331 7765 
        4339 7802 4321 7802 4318 7767 4311 7741 4307 7691 
        4307 7670 
TIME Y17M12D30T1900Z-Y17M12D31T0300Z
COORD...4335 7670 4331 7695 4333 7738 4327 7745 
        4339 7798 4333 7788 4319 7779 4303 7748 4300 7695 
        4302 7670 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
223 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Heavy lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of 3 to 5 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.

* WHEN...For the Lake Effect Snow Warning, until 4 AM Sunday. 
  For the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4254 7876 4265 7875 4269 7880 4270 7909 
        4232 7975 4219 7977 4220 7962 4224 7940 4236 7918 
        4246 7884 
TIME Y17M12D30T0300Z-Y17M12D30T1800Z
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4199 7947 4202 7914 4207 7911 
        4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ014-310330-
/O.EXA.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Ontario-
Including the city of Canandaigua
223 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EST SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Lake effect snow expected. Very cold wind chills
  expected. Plan on slippery road conditions. Additional snow
  accumulations of 3 to 6 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Ontario county.

* WHEN...For the Winter Weather Advisory, until 10 AM Sunday. 
  For the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ012-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
/O.CON.KBUF.WW.Y.0037.000000T0000Z-171231T0900Z/
Wyoming-
Including the city of Warsaw
223 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills 
  expected. Plan on slippery road conditions. Additional snow 
  accumulations of 2 to 4 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 25 below zero.

* WHERE...Wyoming county.

* WHEN...For the Winter Weather Advisory, until 4 AM Sunday. For 
  the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ001-002-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
223 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on slippery road conditions. Additional snow
  accumulations of 3 to 6 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below 
  zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, until 7 AM Sunday. For 
  the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ005-006-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
223 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of 4 to 8 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Winter Weather Advisory, until 10 AM Sunday. 
  For the Wind Chill Advisory, 1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-021-310330-
/O.EXT.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Erie-Genesee-Livingston-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, and Wellsville
223 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY NOW IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills to
  range from 10 below zero to 25 below zero.

* WHERE...Northern Erie, Genesee, Livingston, and Allegany 
  counties.

* WHEN...1 AM Sunday to 10 AM Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

Church
064 
WWUS41 KBUF 302143
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
443 PM EST Sat Dec 30 2017

NYZ005-006-310545-
/O.UPG.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.EXA.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
443 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 10 AM EST SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected. 
  Plan on difficult travel conditions. Additional snow 
  accumulations of 4 to 8 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 below
  to 25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ003-004-310545-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
443 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected. 
  Plan on difficult travel conditions. Additional snow 
  accumulations of 5 to 9 inches are expected in the most 
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Monroe and Wayne counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-310545-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
443 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 2 to 4 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.

* WHEN...For the Lake Effect Snow Warning, until 4 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4199 7947 4202 7914 4207 7911 
        4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ007-310545-
/O.CON.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
Jefferson-
Including the city of Watertown
443 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Lake effect snow
  occurring. Plan on slippery road conditions. Additional snow
  accumulations of an inch or less are expected in the most
  persistent lake snows. Expect wind chills to range from 25 below
  zero to 35 below zero tonight, and 25 below zero to 40 below
  zero Sunday night.

* WHERE...Jefferson county.

* WHEN...For the Wind Chill Warning, from 1 AM Sunday to 10 AM 
  EST Monday. For the Winter Weather Advisory, until 7 AM EST 
  Sunday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

&&

$$

NYZ008-310545-
/O.CON.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
Lewis-
Including the city of Lowville
443 PM EST Sat Dec 30 2017

...WIND CHILL WARNING REMAINS IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Expect wind chills
  to range from 25 below zero to 35 below zero tonight, and from
  30 below zero to 40 below zero Sunday night.

* WHERE...Lewis county.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will cause
  frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ012-310545-
/O.CON.KBUF.WW.Y.0037.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Wyoming-
Including the city of Warsaw
443 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan 
  on slippery road conditions. Additional snow accumulations of 1 
  to 3 inches are expected in the most persistent lake snows. 
  Expect wind chills to range from 10 below zero to 25 below zero.

* WHERE...Wyoming county.

* WHEN...For the Winter Weather Advisory, until 4 AM EST Sunday. 
  For the Wind Chill Advisory, from 1 AM Sunday to 10 AM EST 
  Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ001-002-310545-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
443 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on slippery road conditions. Additional snow
  accumulations of 3 to 5 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Sunday. 
  For the Wind Chill Advisory, from 1 AM Sunday to 10 AM EST 
  Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ014-310545-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Ontario-
Including the city of Canandaigua
443 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 3 to
  5 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below zero to 20 below zero.

* WHERE...Ontario county.

* WHEN...For the Winter Weather Advisory, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-021-310545-
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Erie-Genesee-Livingston-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, and Wellsville
443 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills to
  range from 10 below zero to 25 below zero.

* WHERE...Northern Erie, Genesee, Livingston, and Allegany 
  counties.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

CHURCH/JJR
612 
WWUS41 KBUF 302352
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
652 PM EST Sat Dec 30 2017

NYZ007-310800-
/O.CAN.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
Jefferson-
Including the city of Watertown
652 PM EST Sat Dec 30 2017

...WIND CHILL WARNING REMAINS IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Dangerously cold wind chills expected. Expect wind chills
  to range from 25 below zero to 35 below zero tonight, and 25
  below zero to 40 below zero Sunday night.

* WHERE...Jefferson county.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ005-006-310800-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
652 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 3 to 5 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below 
  zero to 25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ003-004-310800-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
652 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 3 to 6 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Monroe and Wayne counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ019-020-085-310800-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
652 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 1 to 3 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 
  below zero to 20 below zero.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.

* WHEN...For the Lake Effect Snow Warning, until 4 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4234 7853 4252 7850 4265 7856 4262 7922 
        4232 7975 4199 7977 4199 7947 4202 7914 4207 7911 
        4220 7870 
TIME Y17M12D30T1800Z-Y17M12D31T0900Z

$$

NYZ008-310800-
/O.CON.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
Lewis-
Including the city of Lowville
652 PM EST Sat Dec 30 2017

...WIND CHILL WARNING REMAINS IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Expect wind chills
  to range from 25 below zero to 35 below zero tonight, and from
  30 below zero to 40 below zero Sunday night.

* WHERE...Lewis county.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ012-310800-
/O.CON.KBUF.WW.Y.0037.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Wyoming-
Including the city of Warsaw
652 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 1 to
  2 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below zero to 25 below zero.

* WHERE...Wyoming county.

* WHEN...For the Winter Weather Advisory, until 4 AM EST Sunday. 
  For the Wind Chill Advisory, from 1 AM Sunday to 10 AM EST 
  Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ001-002-310800-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
652 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 1 to
  3 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Sunday. 
  For the Wind Chill Advisory, from 1 AM Sunday to 10 AM EST 
  Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ014-310800-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Ontario-
Including the city of Canandaigua
652 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 2 to
  4 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below zero to 20 below zero.

* WHERE...Ontario county.

* WHEN...For the Winter Weather Advisory, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-021-310800-
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Erie-Genesee-Livingston-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, and Wellsville
652 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills to
  range from 10 below zero to 25 below zero.

* WHERE...Northern Erie, Genesee, Livingston, and Allegany 
  counties.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

JJR
279 
WWUS41 KBUF 310226
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
926 PM EST Sat Dec 30 2017

NYZ019-020-085-311030-
/O.CAN.KBUF.LE.W.0013.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park, 
and Springville
926 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...
...LAKE EFFECT SNOW WARNING IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills to
  range from 10 below zero to 20 below zero.

* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ012-311030-
/O.CAN.KBUF.WW.Y.0037.000000T0000Z-171231T0900Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Wyoming-
Including the city of Warsaw
926 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills to 
  range from 10 below zero to 25 below zero.

* WHERE...Wyoming county.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ005-006-311030-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
926 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 1 to 3 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below to
  25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ003-004-311030-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
926 PM EST Sat Dec 30 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Heavy lake effect snow. Very cold wind chills expected.
  Plan on difficult travel conditions. Additional snow
  accumulations of 2 to 4 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Monroe and Wayne counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4332 7642 4329 7741 4339 7805 4327 7809 
        4317 7776 4310 7706 4313 7648 
TIME Y17M12D30T2100Z-Y17M12D31T0300Z
COORD...4344 7630 4329 7693 4330 7780 4313 7783 
        4299 7750 4311 7667 
TIME Y17M12D31T0300Z-Y17M12D31T1500Z

$$

NYZ007-008-311030-
/O.CON.KBUF.WC.W.0002.171231T0600Z-180101T1500Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
926 PM EST Sat Dec 30 2017

...WIND CHILL WARNING REMAINS IN EFFECT FROM 1 AM SUNDAY TO 10 AM
EST MONDAY...

* WHAT...Dangerously cold wind chills expected. 

* WHERE...Jefferson and Lewis counties. Expect wind chills
  to range from 25 below zero to 35 below zero tonight, and 25
  below zero to 40 below zero Sunday night.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ001-002-311030-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
926 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 1 to
  2 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Sunday. 
  For the Wind Chill Advisory, from 1 AM Sunday to 10 AM EST 
  Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ014-311030-
/O.CON.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Ontario-
Including the city of Canandaigua
926 PM EST Sat Dec 30 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Lake effect snow. Very cold wind chills expected. Plan on
  slippery road conditions. Additional snow accumulations of 1 to
  3 inches are expected in the most persistent lake snows. Expect
  wind chills to range from 10 below to 20 below zero.

* WHERE...Ontario county.

* WHEN...For the Winter Weather Advisory, until 10 AM EST 
  Sunday. For the Wind Chill Advisory, from 1 AM Sunday to 10 AM 
  EST Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. The cold wind chills will cause frostbite in as little 
  as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ010-011-013-021-311030-
/O.CON.KBUF.WC.Y.0005.171231T0600Z-180101T1500Z/
Northern Erie-Genesee-Livingston-Allegany-
Including the cities of Buffalo, Batavia, Geneseo, and Wellsville
926 PM EST Sat Dec 30 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
10 AM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills to
  range from 10 below zero to 25 below zero.

* WHERE...Northern Erie, Genesee, Livingston, and Allegany 
  counties.

* WHEN...From 1 AM Sunday to 10 AM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

JJR
150 
WWUS41 KBUF 310839
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
339 AM EST Sun Dec 31 2017

NYZ001-002-311645-
/O.CAN.KBUF.WW.Y.0036.000000T0000Z-171231T1200Z/
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
339 AM EST Sun Dec 31 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 10 below zero to 20 below zero.

* WHERE...Niagara and Orleans counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ014-311645-
/O.CAN.KBUF.WW.Y.0036.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Ontario-
Including the city of Canandaigua
339 AM EST Sun Dec 31 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 10 below zero to 20 below 
  zero.

* WHERE...Ontario county.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ005-006-311645-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
339 AM EST Sun Dec 31 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
THIS MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of up to 2 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 to 
  25 below zero.

* WHERE...Northern Cayuga and Oswego counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM today. 
  For the Wind Chill Advisory, now to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4331 7633 4344 7630 4333 7669 4347 7642 
        4346 7651 4329 7693 4330 7726 4327 7726 4331 7765 
        4327 7745 4330 7780 4323 7790 4313 7783 4307 7759 
        4299 7750 4305 7722 4301 7704 4305 7701 4311 7667 
TIME Y17M12D31T0800Z-Y17M12D31T1500Z

$$

NYZ003-004-311645-
/O.CON.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Monroe-Wayne-
Including the cities of Rochester and Newark
339 AM EST Sun Dec 31 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 AM EST
THIS MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Lake effect snow occurring. Very cold wind chills
  expected. Plan on difficult travel conditions. Additional snow
  accumulations of 1 to 2 inches are expected in the most
  persistent lake snows. Expect wind chills to range from 10 below
  zero to 20 below zero.

* WHERE...Monroe and Wayne counties.

* WHEN...For the Lake Effect Snow Warning, until 10 AM today. 
  For the Wind Chill Advisory, now to 10 AM Monday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4331 7633 4344 7630 4333 7669 4347 7642 
        4346 7651 4329 7693 4330 7726 4327 7726 4331 7765 
        4327 7745 4330 7780 4323 7790 4313 7783 4307 7759 
        4299 7750 4305 7722 4301 7704 4305 7701 4311 7667 
TIME Y17M12D31T0800Z-Y17M12D31T1500Z

$$

NYZ007-008-311645-
/O.CON.KBUF.WC.W.0002.000000T0000Z-180101T1500Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
339 AM EST Sun Dec 31 2017

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Dangerously cold wind chills expected. The dangerously
  cold wind chills will cause frostbite in as little as 15 
  minutes to exposed skin. Expect wind chills to range from 15 
  below zero to 35 below zero.

* WHERE...Jefferson and Lewis counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will cause
  frostbite in as little as 15 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ010>013-019>021-085-311645-
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Northern Erie-Genesee-Wyoming-Livingston-Chautauqua-Cattaraugus-
Allegany-Southern Erie-
Including the cities of Buffalo, Batavia, Warsaw, Geneseo, 
Jamestown, Olean, Wellsville, Orchard Park, and Springville
339 AM EST Sun Dec 31 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 5 below zero to 20 
  below zero.

* WHERE...Erie, Genesee, Wyoming, Livingston, Chautauqua, 
  Cattaraugus, and Allegany counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

Thomas
103 
WWUS41 KBUF 311408
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
908 AM EST Sun Dec 31 2017

NYZ003>006-312215-
/O.CAN.KBUF.LE.W.0013.000000T0000Z-171231T1500Z/
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
908 AM EST Sun Dec 31 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...
...LAKE EFFECT SNOW WARNING IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills to 
  range from 10 below zero to 20 below zero.

* WHERE...Monroe, Wayne, Northern Cayuga, and Oswego counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...Lake effect snow will become very light
  today, with only an additional inch or two of accumulation
  through tonight expected, therefore the Lake Effect Snow 
  Warning is canceled. The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

NYZ007-008-312215-
/O.CON.KBUF.WC.W.0002.000000T0000Z-180101T1500Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
908 AM EST Sun Dec 31 2017

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills to range from 15 below zero to 35 below zero.

* WHERE...Jefferson and Lewis counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The dangerously cold wind chills will 
  cause frostbite in as little as 10 minutes to exposed skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 15 minutes or less with apparent temperatures of
25 below zero or colder.

&&

$$

NYZ001-002-010>014-019>021-085-312215-
/O.CON.KBUF.WC.Y.0005.000000T0000Z-180101T1500Z/
Niagara-Orleans-Northern Erie-Genesee-Wyoming-Livingston-Ontario-
Chautauqua-Cattaraugus-Allegany-Southern Erie-
Including the cities of Niagara Falls, Medina, Buffalo, Batavia, 
Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, 
Orchard Park, and Springville
908 AM EST Sun Dec 31 2017

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills to 
  range from 5 below zero to 20 below zero.

* WHERE...Niagara, Orleans, Erie, Genesee, Wyoming, Livingston, 
  Ontario, Chautauqua, Cattaraugus, and Allegany counties.

* WHEN...Now to 10 AM Monday.

* ADDITIONAL DETAILS...The cold wind chills will cause frostbite 
  in as little as 30 minutes to exposed skin. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a potentially dangerous situation to be outdoors. If you
must be outside, be sure to cover all exposed skin. Frostbite can
occur in 30 minutes or less with apparent temperatures of
15 below zero or colder.

&&

$$

Church

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 3:40 AM ESTWinter Weather AdvisoryBUFCayuga, Jefferson, Monroe, Niagara, Ontario, Orleans and 3 more48 hr
Dec 29, 11:50 AM ESTSpecial Weather StatementBUFWayne115 min
Dec 29, 3:24 PM ESTSmall Craft AdvisoryBUF5 days
Dec 29, 4:15 PM ESTSpecial Weather StatementBUFErie60 min
Dec 29, 5:19 PM ESTSpecial Weather StatementBUFChautauqua, Erie56 min
Dec 29, 6:14 PM ESTSpecial Weather StatementBUFChautauqua, Erie2 hr

Nearby

Lake Effect Snow Warnings in New York, 2017Every lake effect snow warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.