Alert archive / New York / Winter Storm Watches in 2021
Winter Storm Watch 6, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm watch at Feb 18, 2021, 3:24 PM EST for Cayuga County, Monroe County, Wayne County, New York. It took effect at Feb 19, 2021, 6:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 18, 2021, 3:24 PM EST (20:24 UTC)
- In effect from
- Feb 19, 2021, 6:00 PM EST
- Expired
- Feb 19, 2021, 2:32 PM EST
- In force
- Issued by
- NWS Buffalo, NY
Counties Cayuga County, NY, Monroe County, NY, Wayne County, NY
The radar
The Binghamton radar (KBGM), 132 km from the middle of the area, began a volume at 20:25 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, 8.4 hours before the alert went out and 134 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
- 1411 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
407 WWUS41 KBUF 182024 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 324 PM EST Thu Feb 18 2021 NYZ003>005-190430- /O.NEW.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/ Monroe-Wayne-Northern Cayuga- Including the cities of Rochester, Newark, and Fair Haven 324 PM EST Thu Feb 18 2021 ...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy lake effect snow possible. Total snow accumulations of 7 inches or more possible in the most persistent lake snows. * WHERE...Monroe, Wayne, and Northern Cayuga counties. * WHEN...From Friday evening through Saturday afternoon. * IMPACTS...Travel could be very difficult at times with snow covered roads and very poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Narrow bands of heavy snow could impact portions of the region. Localized travel problems will be possible. && $$ TMA
4 follow-up statements
917 WWUS41 KBUF 190212 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 912 PM EST Thu Feb 18 2021 NYZ003>005-191100- /O.CON.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/ Monroe-Wayne-Northern Cayuga- Including the cities of Rochester, Newark, and Fair Haven 912 PM EST Thu Feb 18 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy lake effect snow possible. Total snow accumulations of 7 inches or more possible in the most persistent lake snows. * WHERE...Monroe, Wayne, and Northern Cayuga counties. * WHEN...From Friday evening through Saturday afternoon. * IMPACTS...Travel could be very difficult at times with snow covered roads and very poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Narrow bands of heavy snow could impact portions of the region. Localized travel problems will be possible. && $$ Apffel
810 WWUS41 KBUF 190901 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 401 AM EST Fri Feb 19 2021 NYZ003>005-191700- /O.CON.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/ Monroe-Wayne-Northern Cayuga- Including the cities of Rochester, Newark, and Fair Haven 401 AM EST Fri Feb 19 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy lake effect snow possible. Total snow accumulations of 7 inches or more possible in the most persistent lake snows. * WHERE...Monroe, Wayne, and Northern Cayuga counties. * WHEN...From this evening through Saturday afternoon. * IMPACTS...Travel could be very difficult at times with snow covered roads and very poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Narrow bands of heavy snow could impact portions of the region. Localized travel problems will be possible. && $$
194 WWUS41 KBUF 191422 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 922 AM EST Fri Feb 19 2021 NYZ003>005-192230- /O.CON.KBUF.WS.A.0006.210219T2300Z-210220T2300Z/ Monroe-Wayne-Northern Cayuga- Including the cities of Rochester, Newark, and Fair Haven 922 AM EST Fri Feb 19 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM 6 PM EST THIS EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy lake effect snow possible. Total snow accumulations of 7 inches or more possible in the most persistent lake snows. * WHERE...Monroe, Wayne, and Northern Cayuga counties. * WHEN...From this evening through Saturday afternoon. * IMPACTS...Travel could be very difficult at times with snow covered roads and very poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Narrow bands of heavy snow could impact portions of the region. Localized travel problems will be possible. && $$ Hitchcock
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.
&&
$$
HitchcockThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 6:11 AM EST | Small Craft Advisory | BUF | 15 hr |
Nearby
Winter Storm Watches in New York, 2021Every winter storm watch 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.