Alert archive / New York / Winter Weather Advisories in 2021
Winter Weather Advisory 13, NWS Buffalo, NY
NWS Buffalo, NY issued this winter weather advisory at Feb 19, 2021, 2:32 PM EST for 5 counties in New York. It took effect at Feb 19, 2021, 6:00 PM EST. It was in force for 29 hr.
The area
The counties it named.
The facts
- Issued
- Feb 19, 2021, 2:32 PM EST (19:32 UTC)
- In effect from
- Feb 19, 2021, 6:00 PM EST
- Expired
- Feb 20, 2021, 11:05 PM EST
- In force
- 29 hr
- Issued by
- NWS Buffalo, NY
Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Monroe County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 19:34 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.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.5 hours before the alert went out and 35 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
047
WWUS41 KBUF 191932
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
232 PM EST Fri Feb 19 2021
NYZ004-005-200345-
/O.UPG.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/
/O.NEW.KBUF.LE.W.0009.210219T2300Z-210220T2300Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
232 PM EST Fri Feb 19 2021
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 6 PM THIS EVENING TO
6 PM EST SATURDAY...
* WHAT...Heavy lake effect snow expected. Total snow
accumulations of 6 to 9 inches in the most persistent lake
snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...From 6 PM this evening to 6 PM EST Saturday.
* IMPACTS...Travel will be very difficult at times with snow
covered roads and very poor 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...4318 7647 4323 7658 4327 7703 4326 7730
4315 7734 4314 7720 4307 7697 4305 7698 4302 7662
4302 7650
TIME Y21M02D19T2300Z-Y21M02D20T1200Z
COORD...4315 7648 4318 7673 4324 7688 4327 7723
4324 7736 4320 7737 4312 7729 4303 7698 4303 7680
4302 7650
TIME Y21M02D20T1200Z-Y21M02D20T2300Z
$$
NYZ003-200345-
/O.UPG.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/
/O.NEW.KBUF.WW.Y.0013.210219T2300Z-210220T2300Z/
Monroe-
Including the city of Rochester
232 PM EST Fri Feb 19 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM EST SATURDAY...
* WHAT...Lake effect snow expected. Total snow accumulations of
3 to 6 inches in the most persistent lake snows.
* WHERE...Monroe county. Greatest accumulations along and north of
Route 104.
* WHEN...From 6 PM this evening to 6 PM EST Saturday.
* IMPACTS...Plan on snow covered and slippery road conditions with
reduced visibility at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ012-019-020-085-200345-
/O.NEW.KBUF.WW.Y.0013.210219T2300Z-210221T0300Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
232 PM EST Fri Feb 19 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
10 PM EST SATURDAY...
* WHAT...Lake effect snow expected. Total snow accumulations of
4 to 7 inches in the most persistent lake snows.
* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
counties.
* WHEN...From 6 PM this evening to 10 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
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.
&&
$$
Hitchcock7 follow-up statements
584
WWUS41 KBUF 200021
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
721 PM EST Fri Feb 19 2021
NYZ019-020-085-201000-
/O.UPG.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
/O.EXB.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park,
and Springville
721 PM EST Fri Feb 19 2021
...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 10 PM EST SATURDAY...
* WHAT...Heavy lake effect snow. Total snow accumulations of 7 to
11 inches in the most persistent lake snows.
* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. The
heavy snow will only impact far northern portions of Chautauqua
and Cattaraugus counties.
* WHEN...Until 10 PM EST Saturday.
* IMPACTS...Travel will be very difficult at times with snow
covered roads and very poor visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4256 7852 4269 7853 4273 7873 4270 7889
4252 7930 4241 7958 4234 7951 4233 7915 4240 7893
4244 7869
TIME Y21M02D20T0000Z-Y21M02D20T0900Z
COORD...4254 7850 4275 7848 4276 7879 4269 7895
4258 7929 4253 7936 4237 7965 4231 7966 4233 7933
4241 7908
TIME Y21M02D20T0900Z-Y21M02D21T0300Z
$$
NYZ004-005-201000-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210220T2300Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
721 PM EST Fri Feb 19 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...
* WHAT...Heavy lake effect snow expected. Total snow
accumulations of 6 to 9 inches in the most persistent lake
snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until 6 PM EST Saturday.
* IMPACTS...Travel will be very difficult at times with snow
covered roads and very poor 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...4318 7647 4323 7658 4327 7703 4326 7730
4315 7734 4314 7720 4307 7697 4305 7698 4302 7662
4302 7650
TIME Y21M02D19T2300Z-Y21M02D20T1200Z
COORD...4315 7648 4318 7673 4324 7688 4327 7723
4324 7736 4320 7737 4312 7729 4303 7698 4303 7680
4302 7650
TIME Y21M02D20T1200Z-Y21M02D20T2300Z
$$
NYZ010-201000-
/O.EXA.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-
Including the city of Buffalo
721 PM EST Fri Feb 19 2021
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM EST SATURDAY...
* WHAT...Lake effect snow. Additional snow accumulations of 3 to
6 inches in the most persistent lake snows.
* WHERE...A portion of Northern Erie county, south of a Buffalo to
Lancaster to Alden line. Much less snow accumulation in the
northtowns.
* WHEN...Until 10 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ003-201000-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210220T2300Z/
Monroe-
Including the city of Rochester
721 PM EST Fri Feb 19 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...
* WHAT...Lake effect snow. Additional snow accumulations of 3 to
6 inches in the most persistent lake snows.
* WHERE...Monroe county. Greatest accumulations along and north of
Route 104.
* WHEN...Until 6 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
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.
&&
$$
NYZ012-201000-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Wyoming-
Including the city of Warsaw
721 PM EST Fri Feb 19 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST
SATURDAY...
* WHAT...Lake effect snow. Additional snow accumulations of 4 to
7 inches in the most persistent lake snows.
* WHERE...Wyoming county.
* WHEN...Until 10 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
Apffel792
WWUS41 KBUF 200603
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
103 AM EST Sat Feb 20 2021
NYZ004-005-201400-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210220T2300Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
103 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
* WHAT...Heavy lake effect snow expected. Total snow
accumulations of 6 to 10 inches in the most persistent lake
snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until 6 PM EST Saturday.
* IMPACTS...Travel will be very difficult at times with snow
covered roads and very poor 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...4318 7647 4323 7658 4327 7703 4326 7730
4315 7734 4314 7720 4307 7697 4305 7698 4302 7662
4302 7650
TIME Y21M02D19T2300Z-Y21M02D20T1200Z
COORD...4315 7648 4318 7673 4324 7688 4327 7723
4324 7736 4320 7737 4312 7729 4303 7698 4303 7680
4302 7650
TIME Y21M02D20T1200Z-Y21M02D20T2300Z
$$
NYZ019-020-085-201400-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park,
and Springville
103 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
* WHAT...Heavy lake effect snow. Total snow accumulations of 7
to 11 inches in the most persistent lake snows.
* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.
The heavies snow will only impact far northern portions of
Chautauqua and Cattaraugus counties.
* WHEN...Until 10 PM EST Saturday.
* IMPACTS...Travel will be very difficult at times with snow
covered roads and very poor visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4256 7852 4269 7853 4273 7873 4270 7889
4252 7930 4241 7958 4234 7951 4233 7915 4240 7893
4244 7869
TIME Y21M02D20T0000Z-Y21M02D20T0900Z
COORD...4254 7850 4275 7848 4276 7879 4269 7895
4258 7929 4253 7936 4237 7965 4231 7966 4233 7933
4241 7908
TIME Y21M02D20T0900Z-Y21M02D21T0300Z
$$
NYZ003-201400-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210220T2300Z/
Monroe-
Including the city of Rochester
103 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 3 to
6 inches in the most persistent lake snows.
* WHERE...Monroe county. Greatest accumulations along and north
of Route 104.
* WHEN...Until 6 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
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.
&&
$$
NYZ010-012-201400-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-Wyoming-
Including the cities of Buffalo and Warsaw
103 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 3 to
6 inches in the most persistent lake snows.
* WHERE...Northern Erie and Wyoming counties.
* WHEN...Until 10 PM EST Saturday.
* IMPACTS...Travel will be difficult at times with snow covered
roads and poor visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$291
WWUS41 KBUF 200948
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
448 AM EST Sat Feb 20 2021
NYZ012-201800-
/O.UPG.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
/O.EXA.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Wyoming-
Including the city of Warsaw
448 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Heavy lake effect snow. Additional snow accumulations
of 6 to 10 inches in the most persistent lake snows.
* WHERE...Wyoming county.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Travel could be very difficult.
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.
&&
$$
NYZ004-005-201800-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210220T2300Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
448 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
* WHAT...Heavy lake effect snow. Additional snow accumulations
of 6 to 10 inches in the most persistent lake snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until 6 PM EST this evening.
* IMPACTS...Travel could be very difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4318 7647 4323 7658 4327 7703 4326 7730
4315 7734 4314 7720 4307 7697 4305 7698 4302 7662
4302 7650
TIME Y21M02D19T2300Z-Y21M02D20T1200Z
COORD...4315 7648 4318 7673 4324 7688 4327 7723
4324 7736 4320 7737 4312 7729 4303 7698 4303 7680
4302 7650
TIME Y21M02D20T1200Z-Y21M02D20T2300Z
$$
NYZ019-020-085-201800-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Jamestown, Olean, Orchard Park,
and Springville
448 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
* WHAT...Heavy lake effect snow. Additional snow accumulations
of 6 to 12 inches in the most persistent lake snows.
* WHERE...Chautauqua, Cattaraugus, and Southern Erie counties.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Travel could be very difficult.
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...4256 7852 4269 7853 4273 7873 4270 7889
4252 7930 4241 7958 4234 7951 4233 7915 4240 7893
4244 7869
TIME Y21M02D20T0000Z-Y21M02D20T0900Z
COORD...4254 7850 4275 7848 4276 7879 4269 7895
4258 7929 4253 7936 4237 7965 4231 7966 4233 7933
4241 7908
TIME Y21M02D20T0900Z-Y21M02D21T0300Z
$$
NYZ003-201800-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210220T2300Z/
Monroe-
Including the city of Rochester
448 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 4 to
7 inches in the most persistent lake snows.
* WHERE...Monroe county.
* WHEN...Until 6 PM EST this evening.
* IMPACTS...Travel could be very difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ010-201800-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-
Including the city of Buffalo
448 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 5 to
8 inches in the most persistent lake snows south of Buffalo.
* WHERE...Northern Erie county.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Travel could be very difficult.
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.
&&
$$470
WWUS41 KBUF 201455
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
955 AM EST Sat Feb 20 2021
NYZ004-005-210000-
/O.EXT.KBUF.LE.W.0009.000000T0000Z-210221T0500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
955 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...
* WHAT...Heavy lake effect snow. Additional snow accumulations of
7 to 10 inches in the most persistent lake snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until midnight EST tonight.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4331 7695 4327 7745 4342 7841 4332 7869
4313 7858 4305 7742 4294 7697 4303 7695 4302 7650
4315 7648
TIME Y21M02D20T1200Z-Y21M02D20T2100Z
COORD...4322 7650 4327 7673 4333 7738 4327 7745
4328 7756 4324 7754 4313 7711 4302 7686 4304 7686
4302 7650
TIME Y21M02D20T2100Z-Y21M02D21T0500Z
$$
NYZ012-019-020-085-210000-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
955 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
* WHAT...Heavy lake effect snow. Additional snow accumulations of
5 to 8 inches in the most persistent lake snows.
* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
counties.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
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...4275 7816 4280 7827 4282 7869 4276 7900
4268 7913 4259 7914 4254 7906 4254 7873 4258 7828
4264 7818
TIME Y21M02D20T1200Z-Y21M02D20T2100Z
$$
NYZ003-202300-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210220T2300Z/
Monroe-
Including the city of Rochester
955 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 2 to
4 inches in the most persistent lake snows.
* WHERE...Monroe county.
* WHEN...Until 6 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ010-210000-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-
Including the city of Buffalo
955 AM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 2 to
4 inches in the most persistent lake snows.
* WHERE...Northern Erie county.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
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.
&&
$$
JLA032
WWUS41 KBUF 202032
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
332 PM EST Sat Feb 20 2021
NYZ004-005-210445-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
332 PM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...
* WHAT...Heavy lake effect snow. Additional snow accumulations
of 3 to 5 inches in the most persistent lake snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until midnight EST tonight.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4331 7695 4327 7745 4342 7841 4332 7869
4313 7858 4305 7742 4294 7697 4303 7695 4302 7650
4315 7648
TIME Y21M02D20T1200Z-Y21M02D20T2100Z
COORD...4322 7650 4327 7673 4333 7738 4327 7745
4328 7756 4324 7754 4313 7711 4302 7686 4304 7686
4302 7650
TIME Y21M02D20T2100Z-Y21M02D21T0500Z
$$
NYZ012-019-020-085-210300-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
332 PM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
* WHAT...Heavy lake effect snow. Additional snow accumulations
of 2 to 4 inches in the most persistent lake snows.
* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
counties.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
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...4275 7816 4280 7827 4282 7869 4276 7900
4268 7913 4259 7914 4254 7906 4254 7873 4258 7828
4264 7818
TIME Y21M02D20T1200Z-Y21M02D20T2100Z
$$
NYZ003-210445-
/O.EXT.KBUF.WW.Y.0013.000000T0000Z-210221T0500Z/
Monroe-
Including the city of Rochester
332 PM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...
* WHAT...Lake effect snow. Additional snow accumulations of 1 to
3 inches in the most persistent lake snows.
* WHERE...Monroe county.
* WHEN...Until midnight EST tonight.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ010-210300-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-
Including the city of Buffalo
332 PM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Lake effect snow. Additional snow accumulations of 1 to
2 inches in the most persistent lake snows.
* WHERE...Northern Erie county.
* WHEN...Until 10 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
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.
&&
$$
Apffel031
WWUS41 KBUF 210236
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
936 PM EST Sat Feb 20 2021
NYZ012-019-020-085-210345-
/O.CAN.KBUF.LE.W.0009.000000T0000Z-210221T0300Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
936 PM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING IS CANCELLED...
$$
NYZ010-210345-
/O.CAN.KBUF.WW.Y.0013.000000T0000Z-210221T0300Z/
Northern Erie-
Including the city of Buffalo
936 PM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY IS CANCELLED...
$$
NYZ004-005-210500-
/O.CON.KBUF.LE.W.0009.000000T0000Z-210221T0500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
936 PM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...
* WHAT...Lake effect snow. Additional snow accumulations of an
inch or two in the most persistent lake snows.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...Until midnight EST tonight.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4331 7695 4327 7745 4342 7841 4332 7869
4313 7858 4305 7742 4294 7697 4303 7695 4302 7650
4315 7648
TIME Y21M02D20T1200Z-Y21M02D20T2100Z
COORD...4322 7650 4327 7673 4333 7738 4327 7745
4328 7756 4324 7754 4313 7711 4302 7686 4304 7686
4302 7650
TIME Y21M02D20T2100Z-Y21M02D21T0500Z
$$
NYZ003-210500-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-210221T0500Z/
Monroe-
Including the city of Rochester
936 PM EST Sat Feb 20 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...
* WHAT...Lake effect snow. Additional snow accumulations of an
inch or less in the most persistent lake snows.
* WHERE...Monroe county.
* WHEN...Until midnight EST tonight.
* IMPACTS...Plan on slippery road conditions.
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.
&&
$$188 WWUS41 KBUF 210405 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1105 PM EST Sat Feb 20 2021 NYZ004-005-210515- /O.CAN.KBUF.LE.W.0009.000000T0000Z-210221T0500Z/ Wayne-Northern Cayuga- Including the cities of Newark and Fair Haven 1105 PM EST Sat Feb 20 2021 ...LAKE EFFECT SNOW WARNING IS CANCELLED... While another inch or so of accumulation will be possible overnight, additional impactful snowfall is no longer expected. $$ NYZ003-210515- /O.CAN.KBUF.WW.Y.0013.000000T0000Z-210221T0500Z/ Monroe- Including the city of Rochester 1105 PM EST Sat Feb 20 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... While another inch or so of accumulation will be possible overnight, additional impactful snowfall is no longer expected. $$ RSH/AR
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 2:32 PM EST | Lake Effect Snow Warning | BUF | Cattaraugus, Cayuga, Chautauqua, Erie, Wayne, Wyoming | 33 hr |
Nearby
Winter Weather Advisories in New York, 2021Every winter weather advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.