Alert archive / New York / Winter Storm Warnings in 2017

Winter Storm Warning 4, NWS Buffalo, NY

December 11, 20176 counties in New York

NWS Buffalo, NY issued this winter storm warning at Dec 11, 2017, 1:07 PM EST for 6 counties in New York. It took effect at Dec 12, 2017, 12:00 AM EST. It was in force for 43 hr. 52 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 11, 2017, 1:07 PM EST (18:07 UTC)
In effect from
Dec 12, 2017, 12:00 AM EST
Expired
Dec 13, 2017, 6:45 PM EST
In force
43 hr
Issued by
NWS Buffalo, NY

Counties Cayuga County, NY, Jefferson County, NY, Lewis County, NY, Monroe County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 75 km from the middle of the area, began a volume at 18:08 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 12, 5:45 AM ESTSNOW 3.54 Nne Cayuga, NY
Dec 12, 6:00 AM ESTSNOW 3.72 Sse North Chili, NY24-HOUR SNOWFALL.
Dec 12, 6:00 AM ESTSNOW 3.9Port Leyden, NY24-HOUR SNOWFALL.
Dec 12, 6:00 AM ESTSNOW 4.15 Ese Oswego, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 3.5Lowville, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 3.7Watertown, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 41 E Osceola, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 4.35 Wnw Rochester, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 4.52 Ne Honeoye Falls, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 4.5Fulton, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 5.18 N Redfield, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 5.22 Sw Walworth, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 5.42 Ne Marion, NY24-HOUR SNOWFALL.
Dec 12, 7:00 AM ESTSNOW 63 Sw Oswego, NY24-HOUR SNOWFALL.
Dec 12, 7:30 AM ESTSNOW 4.2Se Minetto, NY24-HOUR SNOWFALL.
Dec 12, 7:30 AM ESTSNOW 5.4Sodus, NY24-HOUR SNOWFALL.
Dec 12, 8:00 AM ESTSNOW 31 Nne Sempronius, NY
Dec 12, 8:00 AM ESTSNOW 4.5W Fulton, NY24-HOUR SNOWFALL.
Dec 12, 8:00 AM ESTSNOW 51 Ne Pulaski, NY24-HOUR SNOWFALL.
Dec 12, 8:00 AM ESTSNOW 6.2Duck Lake, NY24-HOUR SNOWFALL.
Dec 12, 8:15 AM ESTSNOW 52 Nw Palmyra, NY24-HOUR SNOWFALL.
Dec 12, 9:00 AM ESTSNOW 44 Nw Theresa, NY24-HOUR SNOWFALL.
Dec 12, 9:00 AM ESTSNOW 4Brockport, NY24-HOUR SNOWFALL.
Dec 12, 9:00 AM ESTSNOW 4.34 Sse Pittsford, NY24-HOUR SNOWFALL.
Dec 12, 9:50 AM ESTSNOW 4.3Oswego, NY24-HOUR SNOWFALL.
Dec 12, 10:00 AM ESTSNOW 8Redwood, NY
Dec 12, 11:43 AM ESTSNOW 5Rochester, NY
Dec 12, 11:45 AM ESTSNOW 5.5West Monroe, NY
Dec 12, 6:45 PM ESTSNOW 7.9S Watertown, NY
Dec 12, 8:00 PM ESTSNOW 3.52 Ne Webster, NY24-HOUR SNOWFALL.
Dec 12, 11:00 PM ESTSNOW 6Ene West Carthage, NY24-HOUR SNOWFALL.
Dec 13, 4:30 AM ESTSNOW 111 Nw Constableville, NY24-HOUR SNOWFALL.
Dec 13, 5:30 AM ESTSNOW 8.7Highmarket, NY24-HOUR SNOWFALL.
Dec 13, 6:00 AM ESTSNOW 4.65 Ese Oswego, NY24-HOUR SNOWFALL.
Dec 13, 6:00 AM ESTSNOW 7Port Leyden, NY24-HOUR SNOWFALL.
Dec 13, 6:00 AM ESTSNOW 17.34 Sse Lacona, NY24-HOUR SNOWFALL.
Dec 13, 6:30 AM ESTSNOW 10.912 Nnw Hooker, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 4.1Glenfield, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 4.53 W Webster, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 4.55 Wnw Rochester, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 56 N Croghan, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 8.1Fulton, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 121 E Osceola, NY24-HOUR SNOWFALL.
Dec 13, 7:00 AM ESTSNOW 21.48 N Redfield, NY24-HOUR SNOWFALL.
Dec 13, 7:24 AM ESTSNOW 5.12 Ne Marion, NY24-HOUR SNOWFALL.
Dec 13, 7:30 AM ESTSNOW 9W Fulton, NY24-HOUR SNOWFALL.
Dec 13, 8:00 AM ESTSNOW 10.2Watertown, NY
Dec 13, 8:00 AM ESTSNOW 121 Ne Pulaski, NY24-HOUR SNOWFALL.
Dec 13, 8:30 AM ESTSNOW 3.9Se Minetto, NY24-HOUR SNOWFALL.
Dec 13, 8:30 AM ESTSNOW 82 Sw Carthage, NY24-HOUR SNOWFALL.
Dec 13, 9:59 AM ESTSNOW 16Lorraine, NY
Dec 13, 5:00 PM ESTSNOW 12Conquest, NY

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 12:00Z, 6.1 hours before the alert went out and 188 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 12:00Z on 2017-12-11Temperature 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 12:00Z on 2017-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
565 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

592 
WWUS41 KBUF 111807
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
107 PM EST Mon Dec 11 2017

NYZ012-019-020-085-120215-
/O.UPG.KBUF.WS.A.0007.171212T0000Z-171213T2300Z/
/O.NEW.KBUF.LE.W.0010.171212T0300Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
107 PM EST Mon Dec 11 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 10 PM THIS EVENING TO
7 PM EST WEDNESDAY...

* WHAT...Heavy lake effect snow expected. A general snow tonight
  will transition to lake effect snow Tuesday. Travel will be 
  very difficult at times. Total snow accumulations of 10 to 15 
  inches are expected in the most persistent lake snows, with 
  local amounts of up to 20 inches across the higher terrain of 
  Chautauqua County.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
  counties. Greatest amounts across the higher terrain inland from
  Lake Erie.

* WHEN...10 PM today to 7 PM Wednesday. The period of heaviest
  snow accumulation is expected to be late Tuesday afternoon
  through Wednesday morning.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  significant blowing and drifting snow. The combination of heavy
  snow and blowing snow will create very difficult travel, with
  very low visibility and deep snow cover on roads.

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...4239 7837 4255 7814 4273 7826 4274 7855 
        4268 7913 4232 7975 4199 7977 4199 7900 4214 7873 
        4223 7845 
TIME Y17M12D12T0300Z-Y17M12D12T1800Z
COORD...4249 7842 4257 7813 4281 7815 4271 7891 
        4259 7914 4249 7945 4232 7975 4199 7977 4200 7884 
        4213 7862 
TIME Y17M12D12T1800Z-Y17M12D13T1200Z
COORD...4244 7842 4250 7856 4266 7862 4265 7880 
        4256 7897 4249 7925 4225 7976 4199 7977 4200 7861 
        4223 7845 
TIME Y17M12D13T1200Z-Y17M12D14T0000Z

$$

NYZ003>006-120215-
/O.UPG.KBUF.WS.A.0007.171212T0000Z-171213T2300Z/
/O.NEW.KBUF.WS.W.0004.171212T0500Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
107 PM EST Mon Dec 11 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM
EST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. A general snow
  tonight and Tuesday will transition to lake enhanced snow
  Tuesday night and Wednesday. Travel will be very difficult at 
  times, especially during the morning commute on Wednesday. Total
  snow accumulations of 10 to 14 inches are expected.

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

* WHEN...Midnight to 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  significant blowing and drifting snow. The combination of heavy
  snow and blowing snow will create very difficult travel, with
  very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-120215-
/O.UPG.KBUF.WS.A.0007.171212T0000Z-171213T2300Z/
/O.NEW.KBUF.WS.W.0004.171212T0500Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
107 PM EST Mon Dec 11 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM
EST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be very
  difficult at times. Total snow accumulations of 9 to 14 inches 
  are expected.

* WHERE...Jefferson and Lewis counties. Greatest snow amounts
  across the higher terrain of the Tug Hill Plateau.

* WHEN...Midnight to 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  significant blowing and drifting snow. The combination of heavy
  snow and blowing snow will create very difficult travel, with
  very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-120215-
/O.UPG.KBUF.WS.A.0007.171212T0000Z-171213T2300Z/
/O.NEW.KBUF.WW.Y.0024.171212T0300Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
107 PM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
1 PM EST WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions at times. Total snow accumulations of 4 to 8 inches 
  are expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.
  Greatest snow amounts expected east of Buffalo and Niagara
  Falls.

* WHEN...10 PM today to 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow. The combination of
  accumulating snow and blowing snow will result in difficult
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-120215-
/O.NEW.KBUF.WW.Y.0024.171212T0300Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
107 PM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
1 PM EST WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions at times. Total snow accumulations of 4 to 8 inches 
  are expected.

* WHERE...Livingston, Ontario, and Allegany counties. Greatest
  snow amounts across western Allegany County, and northern
  portions of Livingston and Ontario counties.

* WHEN...10 PM today to 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow. The combination of
  accumulating snow and blowing snow will result in difficult
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

HITCHCOCK/REYNOLDS
13 follow-up statements
160 
WWUS41 KBUF 112351
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
651 PM EST Mon Dec 11 2017

NYZ012-019-020-085-120800-
/O.CON.KBUF.LE.W.0010.171212T0300Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
651 PM EST Mon Dec 11 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 7 PM EST WEDNESDAY...

* WHAT...Heavy lake effect snow expected. A general snow tonight 
  will transition to lake effect snow Tuesday. Travel will be 
  very difficult at times. Total snow accumulations of 10 to 15 
  inches are expected in the most persistent lake snows, with 
  local amounts of up to 20 inches across the higher terrain of 
  Chautauqua County.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties. Greatest amounts across the higher terrain inland 
  from Lake Erie.

* WHEN...10 PM this evening to 7 PM Wednesday. The period of 
  heaviest snow accumulation is expected to be late Tuesday 
  afternoon through Wednesday morning.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

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...4239 7837 4255 7814 4273 7826 4274 7855 
        4268 7913 4232 7975 4199 7977 4199 7900 4214 7873 
        4223 7845 
TIME Y17M12D12T0300Z-Y17M12D12T1800Z
COORD...4249 7842 4257 7813 4281 7815 4271 7891 
        4259 7914 4249 7945 4232 7975 4199 7977 4200 7884 
        4213 7862 
TIME Y17M12D12T1800Z-Y17M12D13T1200Z
COORD...4244 7842 4250 7856 4266 7862 4265 7880 
        4256 7897 4249 7925 4225 7976 4199 7977 4200 7861 
        4223 7845 
TIME Y17M12D13T1200Z-Y17M12D14T0000Z

$$

NYZ003>006-120800-
/O.CON.KBUF.WS.W.0004.171212T0500Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
651 PM EST Mon Dec 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 7 PM EST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. A general snow 
  tonight and Tuesday will transition to lake enhanced snow 
  Tuesday night and Wednesday. Travel will be very difficult at 
  times, especially during the morning commute on Wednesday. 
  Total snow accumulations of 10 to 14 inches are expected.

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

* WHEN...Midnight tonight to 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-120800-
/O.CON.KBUF.WS.W.0004.171212T0500Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
651 PM EST Mon Dec 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 7 PM EST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be 
  very difficult at times. Total snow accumulations of 9 to 14 
  inches are expected.

* WHERE...Jefferson and Lewis counties. Greatest snow amounts 
  across the higher terrain of the Tug Hill Plateau.

* WHEN...Midnight tonight to 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-120800-
/O.CON.KBUF.WW.Y.0024.171212T0300Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
651 PM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 1 PM EST WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult 
  travel conditions at times. Total snow accumulations of 4 to 8 
  inches are expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. 
  Greatest snow amounts expected east of Buffalo and Niagara 
  Falls.

* WHEN...10 PM this evening to 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow. The combination of 
  accumulating snow and blowing snow will result in difficult 
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-120800-
/O.CON.KBUF.WW.Y.0024.171212T0300Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
651 PM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 1 PM EST WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult 
  travel conditions at times. Total snow accumulations of 4 to 8 
  inches are expected.

* WHERE...Livingston, Ontario, and Allegany counties. Greatest 
  snow amounts across western Allegany County, and northern 
  portions of Livingston and Ontario counties.

* WHEN...10 PM this evening to 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow. The combination of 
  accumulating snow and blowing snow will result in difficult 
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

Church
745 
WWUS41 KBUF 120636
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
136 AM EST Tue Dec 12 2017

NYZ012-019-020-085-121445-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
136 AM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy lake effect snow expected. A general snow overnight
  will transition to lake effect snow Tuesday. Travel will be very
  difficult at times. Total snow accumulations of 10 to 15 inches
  are expected in the most persistent lake snows, with local 
  amounts of up to 20 inches across the higher terrain of 
  Chautauqua County.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties. Greatest amounts across the higher terrain inland 
  from Lake Erie.

* WHEN...Until 7 PM Wednesday. The period of heaviest snow 
  accumulation is expected to be late Tuesday afternoon through 
  Wednesday morning.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

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...4239 7837 4255 7814 4273 7826 4274 7855 
        4268 7913 4232 7975 4199 7977 4199 7900 4214 7873 
        4223 7845 
TIME Y17M12D12T0300Z-Y17M12D12T1800Z
COORD...4249 7842 4257 7813 4281 7815 4271 7891 
        4259 7914 4249 7945 4232 7975 4199 7977 4200 7884 
        4213 7862 
TIME Y17M12D12T1800Z-Y17M12D13T1200Z
COORD...4244 7842 4250 7856 4266 7862 4265 7880 
        4256 7897 4249 7925 4225 7976 4199 7977 4200 7861 
        4223 7845 
TIME Y17M12D13T1200Z-Y17M12D14T0000Z

$$

NYZ003>006-121445-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
136 AM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. A general snow
  overnight and Tuesday will transition to lake enhanced snow 
  Tuesday night and Wednesday. Travel will be very difficult at 
  times, especially during the morning commute on Wednesday. Total
  snow accumulations of 10 to 14 inches are expected.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-121445-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
136 AM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be 
  very difficult at times. Total snow accumulations of 9 to 14 
  inches are expected.

* WHERE...Jefferson and Lewis counties. Greatest snow amounts 
  across the higher terrain of the Tug Hill Plateau.

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause significant blowing and drifting snow. The combination 
  of heavy snow and blowing snow will create very difficult 
  travel, with very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-121445-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
136 AM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult 
  travel conditions at times. Total snow accumulations of 4 to 8 
  inches are expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. 
  Greatest snow amounts expected east of Buffalo and Niagara 
  Falls.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow. The combination of 
  accumulating snow and blowing snow will result in difficult 
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-121445-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
136 AM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult 
  travel conditions at times. Total snow accumulations of 4 to 8 
  inches are expected.

* WHERE...Livingston, Ontario, and Allegany counties. Greatest 
  snow amounts across western Allegany County, and northern 
  portions of Livingston and Ontario counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow. The combination of 
  accumulating snow and blowing snow will result in difficult 
  travel at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

TMA
973 
WWUS41 KBUF 120934
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
434 AM EST Tue Dec 12 2017

NYZ012-019-020-085-121745-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
434 AM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy lake effect snow expected. The general snow this
  morning will transition to lake effect snow by afternoon. Travel
  will be very difficult. Total snow accumulations of 10 to 15 
  are expected in the most persistent lake snows, with local 
  amounts of up to 20 inches across the higher terrain of 
  Chautauqua County.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  considerable blowing and drifting snow. Near whiteout conditions
  are possible 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...4237 7858 4265 7851 4272 7861 4272 7884 
        4262 7922 4232 7975 4199 7977 4203 7944 4217 7906 
        4215 7883 
TIME Y17M12D12T0800Z-Y17M12D12T1800Z
COORD...4264 7818 4280 7820 4279 7839 4265 7906 
        4253 7939 4232 7975 4199 7977 4199 7879 4212 7873 
        4219 7858 
TIME Y17M12D12T1800Z-Y17M12D13T1100Z
COORD...4250 7830 4261 7809 4285 7812 4281 7839 
        4251 7920 4229 7972 4199 7977 4199 7850 4212 7853 
        4230 7830 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-121745-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
434 AM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. The general snow
  this morning will transition to lake enhanced snow tonight and 
  Wednesday. Travel will be very difficult at times, especially 
  during the morning commute on Wednesday. Total snow 
  accumulations of 10 to 18 inches are expected.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause
  considerable blowing and drifting snow. Near whiteout 
  conditions are possible at times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-121745-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
434 AM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be very
  difficult. Total snow accumulations of 10 to 14 inches are
  expected, with local amounts up to 20 inches on the Tug Hill.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-121745-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
434 AM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions. The general snow this morning will taper off by mid
  day. Additional localized accumulations are possible tonight 
  and Wednesday. Total snow accumulations of 4 to 8 inches are 
  expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause
  considerable blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-121745-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
434 AM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions. The general snow this morning will taper off by mid
  day. Additional localized accumulations are possible tonight 
  and Wednesday. Total snow accumulations of 4 to 8 inches are 
  expected.

* WHERE...Livingston, Ontario, and Allegany counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

TMA
338 
WWUS41 KBUF 121741
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
1241 PM EST Tue Dec 12 2017

NYZ012-019-020-085-130145-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
1241 PM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy lake effect snow and blowing snow expected. Travel
  will be very difficult at times. Additional snow accumulations 
  of 8 to 14 inches are expected in the most persistent lake 
  snows.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
  counties. Greatest snow amounts will focus inland from Lake Erie
  on the higher terrain of the Chautauqua Ridge, Boston Hills, and
  Wyoming County.

* WHEN...Until 7 PM Wednesday. 

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will
  produce significant blowing and drifting snow. This will combine
  with heavy snow to produce very difficult travel at times, with
  very low visibility and deep snow cover on roads.

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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-130145-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
1241 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be very
  difficult at times. Additional snow accumulations of 8 to 12 
  inches are expected.

* WHERE...Monroe, Wayne, Northern Cayuga, and Oswego counties.
  Greatest accumulations from far eastern Monroe County eastward
  to Oswego County.

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will
  produce significant blowing and drifting snow. This will combine
  with heavy snow to produce very difficult travel at times, with
  very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-130145-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
1241 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be very
  difficult at times. Additional snow accumulations of 6 to 12 
  inches are expected.

* WHERE...Jefferson and Lewis counties. Greatest additional snow
  amounts will be across the higher terrain of the Tug Hill
  Plateau.

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will
  produce significant blowing and drifting snow. This will combine
  with heavy snow to produce very difficult travel at times, with
  very low visibility and deep snow cover on roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-130145-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
1241 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on slippery road
  conditions at times. Additional snow accumulations of 2 to 4 
  inches are expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.
  Greatest additional snow amounts east of Buffalo and Niagara
  Falls.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow. The combination of snow and
  blowing snow will create difficult travel at times, with low
  visibility and snow covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-130145-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
1241 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions at times. Additional snow accumulations of 2 to 4 
  inches are expected.

* WHERE...Livingston, Ontario, and Allegany counties. Greatest
  snow amounts across northern Livingston and northern Ontario
  counties, and western Allegany County.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow. The combination of snow and
  blowing snow will create difficult travel at times, with low
  visibility and snow covered roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

HITCHCOCK/ZAFF
425 
WWUS41 KBUF 122200
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
500 PM EST Tue Dec 12 2017

NYZ012-019-020-085-130600-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
500 PM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to occasionally heavy lake effect snow
  occurring. Travel will be very difficult. Additional snow 
  accumulations of 8 to 16 inches are expected in the most 
  persistent lake snows.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-130600-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
500 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to occasionally heavy snow and blowing snow
  occurring. Travel will be very difficult, including during the 
  morning commute on Wednesday. Additional snow accumulations of 7
  to 14 inches are expected.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-130600-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
500 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to heavy snow occurring. Plan on difficult
  travel conditions, including during the morning commute on
  Wednesday. Additional snow accumulations of 5 to 10 inches are
  expected with the highest amounts south of Watertown and west of
  Lowville.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-130600-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
500 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow occurring. Plan on slippery road 
  conditions. In addition, areas of poor visibility are 
  expected. Additional snow accumulations of 3 to 5 inches are 
  expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-130600-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
500 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow occurring. Plan on slippery road 
  conditions. In addition, areas of poor visibility are 
  expected. Additional snow accumulations of 3 to 6 inches are 
  expected.

* WHERE...Livingston, Ontario, and Allegany counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$
712 
WWUS41 KBUF 122337
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
637 PM EST Tue Dec 12 2017

NYZ012-019-020-085-130745-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
637 PM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to occasionally heavy lake effect snow 
  occurring. Travel will be very difficult. Additional snow 
  accumulations of 8 to 16 inches are expected in the most 
  persistent lake snows.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-130745-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
637 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to occasionally heavy snow and blowing snow 
  occurring. Travel will be very difficult, including during the 
  morning commute on Wednesday. Additional snow accumulations of 
  7 to 14 inches are expected.

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

* WHEN...Until 7 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-130745-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
637 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to heavy snow occurring. Plan on difficult 
  travel conditions, including during the morning commute on 
  Wednesday. Additional snow accumulations of 5 to 10 inches are 
  expected with the highest amounts south of Watertown and west 
  of Lowville.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-130745-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
637 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow occurring. Plan on slippery road 
  conditions. In addition, areas of poor visibility are 
  expected. Additional snow accumulations of 3 to 5 inches are 
  expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-130745-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
637 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow and blowing snow occurring. Plan on slippery road 
  conditions. In addition, areas of poor visibility are 
  expected. Additional snow accumulations of 3 to 6 inches are 
  expected.

* WHERE...Livingston, Ontario, and Allegany counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$
727 
WWUS41 KBUF 130258
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
958 PM EST Tue Dec 12 2017

NYZ012-019-020-085-131100-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
958 PM EST Tue Dec 12 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to occasionally heavy lake effect snow 
  occurring. Travel will be very difficult. Additional snow 
  accumulations of 6 to 12 inches are expected in the most 
  persistent lake snows.

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

* WHEN...Until 7 PM Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow may 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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-131100-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
958 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to heavy snow occurring. Travel will be very
  difficult, including during the morning commute on Wednesday. 
  Additional snow accumulations of 7 to 13 inches are expected.

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

* WHEN...Until 7 PM Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-131100-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
958 PM EST Tue Dec 12 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
WEDNESDAY...

* WHAT...Moderate to heavy snow occurring. Plan on difficult 
  travel conditions, including during the morning commute on 
  Wednesday. Additional snow accumulations of 5 to 9 inches are 
  expected.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-010-011-131100-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo, 
and Batavia
958 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. 
  Additional snow accumulations of 2 to 4 inches are expected.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ013-014-021-131100-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Livingston-Ontario-Allegany-
Including the cities of Geneseo, Canandaigua, and Wellsville
958 PM EST Tue Dec 12 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. 
  Additional snow accumulations of 3 to 6 inches are expected.

* WHERE...Livingston, Ontario, and Allegany counties.

* WHEN...Until 1 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$
555 
WWUS41 KBUF 130844
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
344 AM EST Wed Dec 13 2017

NYZ010-013-014-021-130945-
/O.CAN.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Northern Erie-Livingston-Ontario-Allegany-
Including the cities of Buffalo, Geneseo, Canandaigua, 
and Wellsville
344 AM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Scattered snow showers will continue through the morning. Any 
additional snow accumulation will be less than an inch.

$$

NYZ012-019-020-085-131645-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
344 AM EST Wed Dec 13 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy lake effect snow occurring. Plan on difficult
  travel conditions. Additional snow accumulations of 4 to 7 
  inches are expected in the most persistent lake snows.

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

* WHEN...Until 7 PM today.

* 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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-131645-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
344 AM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 4 to 7 inches are expected.

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

* WHEN...Until 7 PM today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-131645-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
344 AM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 3 to 6 inches are expected.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-011-131645-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Genesee-
Including the cities of Niagara Falls, Medina, and Batavia
344 AM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional localized snow accumulations of up to 2 inches are 
  expected.

* WHERE...Niagara, Orleans, and Genesee counties.

* WHEN...Until 1 PM today.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

TMA
143 
WWUS41 KBUF 131150
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
650 AM EST Wed Dec 13 2017

NYZ012-019-020-085-132000-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
650 AM EST Wed Dec 13 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy lake effect snow occurring. Plan on difficult 
  travel conditions, including during the morning commute. 
  Additional snow accumulations of 3 to 5 inches are expected in 
  the most persistent lake snows.

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

* WHEN...Until 7 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

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...4264 7818 4280 7820 4279 7839 4273 7867 
        4265 7906 4253 7939 4232 7975 4199 7977 4199 7897 
        4227 7848 
TIME Y17M12D12T1700Z-Y17M12D13T1100Z
COORD...4254 7831 4271 7829 4276 7834 4267 7880 
        4260 7893 4251 7920 4225 7976 4199 7977 4199 7879 
        4227 7848 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-132000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
650 AM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow and blowing snow occurring. Plan on 
  difficult travel conditions, including during the morning 
  commute. Additional snow accumulations of 2 to 4 inches are 
  expected.

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

* WHEN...Until 7 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-132000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
650 AM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 2 to 4 inches are expected.

* WHERE...Jefferson and Lewis counties.

* WHEN...Until 7 PM today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ001-002-011-131800-
/O.CON.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Genesee-
Including the cities of Niagara Falls, Medina, and Batavia
650 AM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow and blowing snow occurring. Plan on slippery road
  conditions, including during the morning commute. In addition,
  areas of poor visibility are expected. Additional snow
  accumulations of two inches or less are expected.

* WHERE...Niagara, Orleans, and Genesee counties.

* WHEN...Until 1 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow and blowing snow will result in snow covered
roads and limited visibilities. Slow down and use caution while
driving.

Submit snow reports through our website or social media.

&&

$$

SMITH
852 
WWUS41 KBUF 131447
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
947 AM EST Wed Dec 13 2017

NYZ012-085-131600-
/O.CAN.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Wyoming-Southern Erie-
Including the cities of Warsaw, Orchard Park, and Springville
947 AM EST Wed Dec 13 2017

...LAKE EFFECT SNOW WARNING IS CANCELLED...

Steady snow has ended with additional snow accumulation an inch or less
this afternoon. Roads still may be slick in spots. Motorists 
should continue to exercise caution.

$$

NYZ007-008-131600-
/O.CAN.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
947 AM EST Wed Dec 13 2017

...WINTER STORM WARNING IS CANCELLED...

Steady snow has ended with additional snow accumulation less than
an inch this afternoon. Roads still may be slick in spots.
Motorists should continue to exercise caution.

$$

NYZ001-002-011-131600-
/O.CAN.KBUF.WW.Y.0024.000000T0000Z-171213T1800Z/
Niagara-Orleans-Genesee-
Including the cities of Niagara Falls, Medina, and Batavia
947 AM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Steady snow has ended with additional snow accumulation less than
an inch this afternoon. Roads still may be slick in spots.
Motorists should continue to exercise caution.

$$

NYZ019-020-132300-
/O.CON.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
Chautauqua-Cattaraugus-
Including the cities of Jamestown and Olean
947 AM EST Wed Dec 13 2017

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy lake effect snow occurring. Plan on difficult
  travel conditions. Additional snow accumulations of 1 to 3 
  inches are expected in the most persistent lake snows.

* WHERE...Chautauqua and Cattaraugus counties.

* WHEN...Until 7 PM today.

* 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...4222 7884 4233 7886 4248 7906 4249 7925 
        4231 7969 4227 7975 4199 7977 4201 7923 4199 7897 
        4200 7888 
TIME Y17M12D13T1100Z-Y17M12D14T0000Z

$$

NYZ003>006-132300-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-
Including the cities of Rochester, Newark, Fair Haven, and Oswego
947 AM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow and blowing snow occurring. Plan on difficult
  travel conditions. Additional snow accumulations of up to 2 
  inches are expected.

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

* WHEN...Until 7 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  areas of blowing and drifting snow.

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.

&&

$$

Apffel
659 
WWUS41 KBUF 131830
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
130 PM EST Wed Dec 13 2017

NYZ019-020-140230-
/O.CAN.KBUF.LE.W.0010.000000T0000Z-171214T0000Z/
/O.NEW.KBUF.WW.Y.0025.171213T1830Z-171214T1200Z/
Chautauqua-Cattaraugus-
Including the cities of Jamestown and Olean
130 PM EST Wed Dec 13 2017

...LAKE EFFECT SNOW WARNING IS REPLACED BY A WINTER WEATHER 
ADVISORY WHICH IS IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Snow occurring. Plan on slippery road conditions.
  Additional snow accumulations of 3 to 5 inches are expected.

* WHERE...Chautauqua and Cattaraugus counties.

* WHEN...Until 7 AM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ003-131930-
/O.CAN.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Monroe-
Including the city of Rochester
130 PM EST Wed Dec 13 2017

...WINTER STORM WARNING IS CANCELLED...

Snow has tapered off with any additional accumulation less than an
inch. Roads still may be slick in spots. Motorists should continue
to exercise caution.

$$

NYZ004>006-140000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Wayne-Northern Cayuga-Oswego-
Including the cities of Newark, Fair Haven, and Oswego
130 PM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of less than two inches are expected.

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

* WHEN...Until 7 PM today.

* 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.

&&

$$

Apffel
743 
WWUS41 KBUF 131948
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
248 PM EST Wed Dec 13 2017

NYZ004>006-140000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Wayne-Northern Cayuga-Oswego-
Including the cities of Newark, Fair Haven, and Oswego
248 PM EST Wed Dec 13 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of 2 inches or less 
  are expected.

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

* WHEN...Until 7 PM today.

* 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.

&&

$$

NYZ021-140415-
/O.EXA.KBUF.WW.Y.0025.000000T0000Z-171214T1200Z/
Allegany-
Including the city of Wellsville
248 PM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. 
  Additional snow accumulations of 3 to 5 inches are expected.

* WHERE...Allegany county.

* WHEN...Until 7 AM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ019-020-140415-
/O.CON.KBUF.WW.Y.0025.000000T0000Z-171214T1200Z/
Chautauqua-Cattaraugus-
Including the cities of Jamestown and Olean
248 PM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. 
  Additional snow accumulations of 3 to 5 inches are expected.

* WHERE...Chautauqua and Cattaraugus counties.

* WHEN...Until 7 AM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

Apffel
243 
WWUS41 KBUF 132345
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
645 PM EST Wed Dec 13 2017

NYZ004>006-140045-
/O.CAN.KBUF.WS.W.0004.000000T0000Z-171214T0000Z/
Wayne-Northern Cayuga-Oswego-
Including the cities of Newark, Fair Haven, and Oswego
645 PM EST Wed Dec 13 2017

...WINTER STORM WARNING IS CANCELLED...

While light snow will produce a minimal accumulation tonight... 
significant snowfall is not longer expected.

$$

NYZ019>021-140745-
/O.CON.KBUF.WW.Y.0025.000000T0000Z-171214T1200Z/
Chautauqua-Cattaraugus-Allegany-
Including the cities of Jamestown, Olean, and Wellsville
645 PM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Snow occurring. Plan on slippery road conditions, 
  including during the evening commute. Additional snow 
  accumulations of 2 to 4 inches are expected.

* WHERE...The western Southern Tier.

* WHEN...Until 7 AM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 8:09 PM ESTSpecial Weather StatementBUFErie, Genesee111 min
Dec 10, 8:21 PM ESTSpecial Weather StatementBUFLewis114 min
Dec 10, 9:58 PM ESTSpecial Weather StatementBUFLewis32 min
Dec 10, 10:03 PM ESTSpecial Weather StatementBUFErie117 min
Dec 10, 10:38 PM ESTSpecial Weather StatementBUFJefferson, Lewis82 min
Dec 11, 3:48 AM ESTWinter Storm WatchBUFCattaraugus, Cayuga, Chautauqua, Erie, Genesee, Jefferson and 7 more9 hr
Dec 11, 1:07 PM ESTLake Effect Snow WarningBUFCattaraugus, Chautauqua, Erie, Wyoming48 hr
Dec 11, 1:07 PM ESTWinter Weather AdvisoryBUFAllegany, Erie, Genesee, Livingston, Niagara, Ontario and 1 more45 hr
Dec 11, 3:51 PM ESTSmall Craft AdvisoryBUF4 days

Nearby

Winter Storm Warnings in New York, 2017Every winter storm 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.