Alert archive / New York / Winter Storm Watches in 2021
Winter Storm Watch 8, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm watch at Nov 25, 2021, 4:14 AM EST for Chautauqua County, New York. It took effect at Nov 26, 2021, 1:00 AM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 25, 2021, 4:14 AM EST (09:14 UTC)
- In effect from
- Nov 26, 2021, 1:00 AM EST
- Expired
- Nov 25, 2021, 2:41 PM EST
- In force
- Issued by
- NWS Buffalo, NY
County Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 09:16 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 00:00Z, 9.2 hours before the alert went out and 91 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
- 1964 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
258 WWUS41 KBUF 250914 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 414 AM EST Thu Nov 25 2021 NYZ019-251715- /O.NEW.KBUF.WS.A.0008.211126T0600Z-211127T1200Z/ Chautauqua- Including the city of Jamestown 414 AM EST Thu Nov 25 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations of 6 to 11 inches possible. Winds could gust as high as 40 mph. * WHERE...Chautauqua county. * WHEN...From late tonight through Saturday morning. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ RSH
2 follow-up statements
090 WWUS41 KBUF 251149 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 649 AM EST Thu Nov 25 2021 NYZ019-252000- /O.CON.KBUF.WS.A.0008.211126T0600Z-211127T1200Z/ Chautauqua- Including the city of Jamestown 649 AM EST Thu Nov 25 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations of 6 to 11 inches possible. Winds could gust as high as 40 mph. * WHERE...Chautauqua county. * WHEN...From late tonight through Saturday morning. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ JAM
159
WWUS41 KBUF 251941
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
241 PM EST Thu Nov 25 2021
NYZ019-260345-
/O.UPG.KBUF.WS.A.0008.211126T0600Z-211127T1200Z/
/O.NEW.KBUF.LE.W.0010.211126T0600Z-211127T1200Z/
Chautauqua-
Including the city of Jamestown
241 PM EST Thu Nov 25 2021
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 1 AM FRIDAY TO 7 AM
EST SATURDAY...
* WHAT...Heavy lake effect snow and blowing snow expected. Total
snow accumulations of 6 to 11 inches in the most persistent lake
snows. The greatest totals will be along the Chautauqua Ridge.
Winds gusting as high as 40 mph.
* WHERE...Chautauqua county.
* WHEN...From 1 AM Friday to 7 AM EST Saturday.
* IMPACTS...Travel could be very difficult. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the morning or evening commute.
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
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4224 7908 4250 7906 4239 7931 4232 7956
4223 7976 4199 7977 4202 7956 4209 7937 4219 7926
4218 7915
TIME Y21M11D26T0600Z-Y21M11D26T1200Z
COORD...4226 7908 4250 7906 4249 7922 4242 7941
4232 7956 4225 7976 4199 7977 4202 7931 4207 7914
4215 7906
TIME Y21M11D26T1200Z-Y21M11D27T0000Z
COORD...4226 7909 4248 7906 4243 7931 4236 7947
4226 7955 4217 7977 4199 7977 4200 7965 4216 7939
4218 7920
TIME Y21M11D27T0000Z-Y21M11D27T1200Z
$$
NYZ020-085-260345-
/O.NEW.KBUF.WW.Y.0023.211126T0900Z-211127T1200Z/
Cattaraugus-Southern Erie-
Including the cities of Olean, Orchard Park, and Springville
241 PM EST Thu Nov 25 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 7 AM EST
SATURDAY...
* WHAT...Lake effect snow and blowing snow expected. Total snow
accumulations of 5 to 9 inches. Localized higher totals are
possible. The greatest totals will occur over the higher
terrain. Winds gusting as high as 40 mph.
* WHERE...Cattaraugus and Southern Erie counties.
* WHEN...From 4 AM Friday to 7 AM EST Saturday.
* IMPACTS...Travel could be very difficult. Areas of blowing
snow could significantly reduce visibility. The hazardous
conditions could impact the morning or evening commute.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
NYZ006>008-260345-
/O.NEW.KBUF.WW.Y.0023.211126T0900Z-211127T1500Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
241 PM EST Thu Nov 25 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 10 AM
EST SATURDAY...
* WHAT...Lake effect snow and blowing snow expected. Total snow
accumulations of 5 to 10 inches. Localized higher totals are
possible. The greatest totals expected on the Tug Hill Plateau.
Winds gusting as high as 35 mph.
* WHERE...The Eastern Lake Ontario Region.
* WHEN...From 4 AM Friday to 10 AM EST Saturday.
* IMPACTS...Travel could be very difficult. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the morning or evening commute.
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.
&&
$$
NYZ004-005-260345-
/O.NEW.KBUF.WW.Y.0023.211126T1500Z-211127T1500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
241 PM EST Thu Nov 25 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 10 AM
EST SATURDAY...
* WHAT...Lake effect snow and blowing snow expected. Total snow
accumulations of 3 to 6 inches in the most persistent lake
snows. Winds gusting as high as 40 mph.
* WHERE...Wayne and Northern Cayuga counties.
* WHEN...From 10 AM Friday to 10 AM EST Saturday.
* IMPACTS...Plan on slippery road conditions. Areas of blowing
snow could significantly reduce visibility. The hazardous
conditions could impact the evening commute.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.
Submit snow reports through our website or social media.
&&
$$
TMAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 25, 6:49 AM EST | Small Craft Advisory | BUF | 63 hr | |
| Nov 25, 2:41 PM EST | Lake Effect Snow Warning | BUF | Chautauqua | 37 hr |
| Nov 25, 2:41 PM EST | Winter Weather Advisory | BUF | Cattaraugus, Cayuga, Erie, Jefferson, Lewis, Oswego and 1 more | 37 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.