Alert archive / New York / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm warning at Jan 15, 2021, 1:35 PM EST for Jefferson County, Lewis County, Oswego County, New York. It took effect at Jan 16, 2021, 1:00 AM EST. It was in force for 40 hr. 15 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
- Jan 15, 2021, 1:35 PM EST (18:35 UTC)
- In effect from
- Jan 16, 2021, 1:00 AM EST
- Expired
- Jan 17, 2021, 5:19 PM EST
- In force
- 40 hr
- Issued by
- NWS Buffalo, NY
Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY
The radar
The Ft Drum radar (KTYX), 18 km from the middle of the area, began a volume at 18:37 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 17, 9:45 AM EST | SNOW 5 | Croghan, NY | |
| Jan 17, 9:45 AM EST | SNOW 12 | 3 Sse West Carthage, NY | |
| Jan 17, 10:00 AM EST | SNOW 4 | Watertown, NY | |
| Jan 17, 10:00 AM EST | SNOW 5 | Lowville, NY | |
| Jan 17, 10:00 AM EST | SNOW 7 | Carthage, NY | |
| Jan 17, 10:00 AM EST | SNOW 8 | 3 Wsw West Carthage, NY | |
| Jan 17, 10:00 AM EST | SNOW 14 | Lorraine, NY | |
| Jan 17, 10:15 AM EST | SNOW 4 | Mannsville, NY | |
| Jan 17, 10:30 AM EST | SNOW 9 | 4 S Black River, NY | |
| Jan 17, 10:35 AM EST | SNOW 12 | 4 Wsw Barnes Corners, NY | ESTIMATED IN WORTH, NY. |
| Jan 17, 11:00 AM EST | SNOW 6 | Glenfield, NY | |
| Jan 17, 11:00 AM EST | SNOW 7 | Castorland, NY | |
| Jan 17, 11:00 AM EST | SNOW 10 | Redfield, NY | FROM SOCIAL MEDIA. |
| Jan 17, 12:00 PM EST | SNOW 5 | Philadelphia, NY | |
| Jan 17, 12:00 PM EST | SNOW 14 | 3 W Lowville, NY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.6 hours before the alert went out and 205 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
- 787 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
747 WWUS41 KBUF 151835 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 135 PM EST Fri Jan 15 2021 NYZ006>008-160245- /O.UPG.KBUF.WS.A.0001.210116T0600Z-210118T0000Z/ /O.NEW.KBUF.WS.W.0001.210116T0600Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 135 PM EST Fri Jan 15 2021 ...WINTER STORM WARNING IN EFFECT FROM 1 AM SATURDAY TO 7 PM EST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 15 to 20 inches across the higher terrain of the Tug Hill Plateau. Total accumulations of 4 to 7 inches across the lower elevations. Winds gusting as high as 35 mph on Sunday will result in some blowing and drifting snow. * WHERE...The Eastern Lake Ontario Region. The greater snow amounts will be confined to the higher terrain of the Tug Hill Plateau. * WHEN...From 1 AM Saturday to 7 PM EST Sunday. The period of highest snowfall rates and greatest accumulation will be Saturday night through Sunday morning. * IMPACTS...Travel will be very difficult at times with poor visibility and snow covered roads, especially across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create difficult travel conditions. Submit snow reports through our website or social media. && $$ Hitchcock
9 follow-up statements
097 WWUS41 KBUF 160215 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 915 PM EST Fri Jan 15 2021 NYZ006>008-161015- /O.CON.KBUF.WS.W.0001.210116T0600Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 915 PM EST Fri Jan 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM SATURDAY TO 7 PM EST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 15 to 20 inches across the higher terrain of the Tug Hill Plateau. Total accumulations of 4 to 7 inches across the lower elevations. Winds gusting as high as 35 mph on Sunday will result in some blowing and drifting snow. * WHERE...The Eastern Lake Ontario Region. The greater snow amounts will be confined to the higher terrain of the Tug Hill Plateau. * WHEN...From 1 AM Saturday to 7 PM EST Sunday. The period of highest snowfall rates and greatest accumulation will be Saturday night through Sunday morning. * IMPACTS...Travel will be very difficult at times with poor visibility and snow covered roads, especially across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create difficult travel conditions. Submit snow reports through our website or social media. && $$
730 WWUS41 KBUF 160900 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 400 AM EST Sat Jan 16 2021 NYZ006>008-161700- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 400 AM EST Sat Jan 16 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... * WHAT...Heavy snow. Total snow accumulations of 10 to 20 inches across the higher terrain of the Tug Hill Plateau with 4 to 7 inch amounts for the lower elevations. Winds gusting as high as 35 mph on Sunday could result in some blowing snow. * WHERE...The Eastern Lake Ontario Region. The greatest snow amounts will be confined to the higher terrain of the Tug Hill Plateau. * WHEN...Through 7 PM EST Sunday. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$
026 WWUS41 KBUF 161500 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1000 AM EST Sat Jan 16 2021 NYZ006>008-162300- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 1000 AM EST Sat Jan 16 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... * WHAT...Heavy snow. Total snow accumulations of 10 to 20 inches across the higher terrain of the Tug Hill Plateau with 4 to 7 inch amounts for the lower elevations. Winds gusting as high as 35 mph on Sunday could result in some blowing snow. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST Sunday. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ JLA
917 WWUS41 KBUF 161927 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 227 PM EST Sat Jan 16 2021 NYZ006>008-170330- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 227 PM EST Sat Jan 16 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... * WHAT...Heavy snow. Additional snow accumulations through late Sunday afternoon of over a foot on the Tug Hill Plateau, with 2 to 4 inches at lower elevations, including Oswego, Watertown, Lowville. The most snow will occur later this evening through Sunday morning. Winds gusting as high as 35 mph on Sunday will lead to patchy blowing snow in open areas. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST Sunday. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ JLA
920 WWUS41 KBUF 170241 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 941 PM EST Sat Jan 16 2021 NYZ006>008-171045- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 941 PM EST Sat Jan 16 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... * WHAT...Heavy snow. Additional snow accumulations through Sunday afternoon of over a foot on the Tug Hill Plateau, with 2 to 4 inches at lower elevations, including Oswego, Watertown, Lowville. The most snow will occur tonight through Sunday morning. Winds gusting as high as 35 mph on Sunday will lead to patchy blowing snow in open areas. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST Sunday. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$
963 WWUS41 KBUF 170734 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 234 AM EST Sun Jan 17 2021 NYZ006>008-171600- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 234 AM EST Sun Jan 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of 6 to 10 inches across the Tug Hill Plateau while several additional inches will be possible across the lower elevations. Winds gusting as high as 35 mph. The bulk of the additional snowfall will take place before midday. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST this evening. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly this morning across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-019-020-085-171600- /O.NEW.KBUF.WW.Y.0003.210117T0734Z-210118T2200Z/ Wyoming-Chautauqua-Cattaraugus-Southern Erie- Including the cities of Warsaw, Jamestown, Olean, Orchard Park, and Springville 234 AM EST Sun Jan 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM EST MONDAY... * WHAT...Accumulating snow. Total snow accumulations ranging from of 7 to 14 inches across the higher terrain to 4 to 7 inches in the lower elevations. Winds gusting as high as 35 mph. * WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 5 PM EST Monday. * IMPACTS...Travel could be difficult at times...especially tonight and Monday across the higher terrain. The hazardous conditions could impact the Monday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$
759 WWUS41 KBUF 171102 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 602 AM EST Sun Jan 17 2021 NYZ006>008-171915- /O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 602 AM EST Sun Jan 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Accumulating snow. Additional snow accumulations of 5 to 8 inches across the Tug Hill Plateau while several additional inches will be possible across the lower elevations. Winds gusting as high as 35 mph. The bulk of the additional snowfall will take place before midday. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST this evening. * IMPACTS...Travel could be very difficult at times with poor visibility and snow covered roads, particularly this morning across the higher terrain of the Tug Hill Plateau. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-019-020-085-171915- /O.CON.KBUF.WW.Y.0003.000000T0000Z-210118T2200Z/ Wyoming-Chautauqua-Cattaraugus-Southern Erie- Including the cities of Warsaw, Jamestown, Olean, Orchard Park, and Springville 602 AM EST Sun Jan 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST MONDAY... * WHAT...Accumulating snow. Total snow accumulations ranging from of 7 to 14 inches across the higher terrain to 4 to 7 inches in the lower elevations. Winds gusting as high as 35 mph. * WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 5 PM EST Monday. * IMPACTS...Travel could be difficult at times...especially tonight and Monday across the higher terrain. The hazardous conditions could impact the Monday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$
764
WWUS41 KBUF 171811
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
111 PM EST Sun Jan 17 2021
NYZ012-019-020-085-180215-
/O.UPG.KBUF.WW.Y.0003.000000T0000Z-210118T2200Z/
/O.NEW.KBUF.LE.W.0001.210118T0000Z-210119T1200Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
111 PM EST Sun Jan 17 2021
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 7 PM THIS EVENING TO
7 AM EST TUESDAY...
* WHAT...Heavy lake effect snow expected. Total snow accumulations
of 8 to 16 inches in the most persistent lake snows. The
greatest snow accumulations in Chautauqua and Cattaraugus
counties will occur north of a line from Mayville to Cattaraugus
to Machias.
* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
counties.
* WHEN...From 7 PM this evening to 7 AM EST Tuesday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Monday morning or evening
commute and the morning commute on Tuesday.
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...4273 7823 4274 7837 4277 7837 4278 7878
4271 7894 4259 7890 4260 7869 4261 7854 4261 7834
4266 7820
TIME Y21M01D18T0000Z-Y21M01D18T0600Z
COORD...4262 7823 4271 7823 4274 7861 4271 7897
4262 7922 4241 7958 4228 7952 4226 7934 4232 7880
4247 7848
TIME Y21M01D18T0600Z-Y21M01D18T1800Z
COORD...4269 7826 4283 7836 4268 7913 4249 7922
4234 7945 4233 7918 4247 7895 4242 7887 4240 7864
4255 7838
TIME Y21M01D18T1800Z-Y21M01D19T1200Z
$$
NYZ006>008-180000-
/O.CON.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
111 PM EST Sun Jan 17 2021
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Snow. Additional snow accumulations of up to 2 inches
over the Tug Hill, with minimal snow accumulations elsewhere.
* WHERE...The Eastern Lake Ontario Region.
* WHEN...Until 7 PM EST this evening.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Widespread accumulating snow will create dangerous travel
conditions.
Submit snow reports through our website or social media.
&&
$$
JLA565
WWUS41 KBUF 172219
WSWBUF
URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
519 PM EST Sun Jan 17 2021
NYZ006>008-172330-
/O.CAN.KBUF.WS.W.0001.000000T0000Z-210118T0000Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
519 PM EST Sun Jan 17 2021
...WINTER STORM WARNING IS CANCELLED...
Heavy snow has ended in the area. There still may be some slick
spots due to previous snowfall and lingering snow showers.
$$
NYZ012-019-020-085-180700-
/O.CON.KBUF.LE.W.0001.210118T0000Z-210119T1200Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park,
and Springville
519 PM EST Sun Jan 17 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...
* WHAT...Heavy lake effect snow expected. Total snow
accumulations of 8 to 16 inches in the most persistent lake
snows. The greatest snow accumulations in Chautauqua and
Cattaraugus counties will occur north of a line from Mayville
to Cattaraugus to Machias.
* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie
counties.
* WHEN...From 7 PM this evening to 7 AM EST Tuesday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Monday morning or
evening commute and the morning commute on Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy snow will fall in relatively narrow bands. If traveling, be
prepared for rapidly changing road conditions and visibilities.
Submit snow reports through our website or social media.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4273 7823 4274 7837 4277 7837 4278 7878
4271 7894 4259 7890 4260 7869 4261 7854 4261 7834
4266 7820
TIME Y21M01D18T0000Z-Y21M01D18T0600Z
COORD...4262 7823 4271 7823 4274 7861 4271 7897
4262 7922 4241 7958 4228 7952 4226 7934 4232 7880
4247 7848
TIME Y21M01D18T0600Z-Y21M01D18T1800Z
COORD...4269 7826 4283 7836 4268 7913 4249 7922
4234 7945 4233 7918 4247 7895 4242 7887 4240 7864
4255 7838
TIME Y21M01D18T1800Z-Y21M01D19T1200Z
$$
ApffelNearby
Winter Storm Warnings in New York, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.