Alert archive / New York / Winter Storm Warnings in 2020
Winter Storm Warning 4, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm warning at Nov 30, 2020, 3:48 AM EST for Cattaraugus County, Chautauqua County, Erie County, New York. It took effect at Dec 1, 2020, 1:00 AM EST. It was in force for 30 hr. 11 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
- Nov 30, 2020, 3:48 AM EST (08:48 UTC)
- In effect from
- Dec 1, 2020, 1:00 AM EST
- Expired
- Dec 2, 2020, 6:46 AM EST
- In force
- 30 hr
- Issued by
- NWS Buffalo, NY
Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY
The radar
The Buffalo radar (KBUF), 60 km from the middle of the area, began a volume at 08:48 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 |
|---|---|---|---|
| Dec 1, 3:55 PM EST | SNOW 4 | Perrysburg, NY | |
| Dec 1, 4:15 PM EST | SNOW 5 | 2 Sw Forestville, NY | |
| Dec 1, 4:50 PM EST | SNOW 3.5 | 2 Nnw Elma Center, NY | |
| Dec 1, 6:00 PM EST | SNOW 4.8 | Jamestown, NY | |
| Dec 1, 8:00 PM EST | SNOW 4 | 4 Nw Springville, NY | |
| Dec 2, 12:00 AM EST | SNOW 4.8 | Springville, NY | COCORAHS STATION NY-ER-195 SPRINGVILLE 0.4 NE. |
| Dec 2, 2:30 AM EST | SNOW 8 | 2 S Fredonia, NY | |
| Dec 2, 5:00 AM EST | SNOW 5.5 | 1 Wnw Fredonia, NY | COCORAHS STATION NY-CQ-22 FREDONIA 0.8 WNW. |
| Dec 2, 6:40 AM EST | SNOW 6 | 4 Nw Springville, NY | |
| Dec 2, 6:45 AM EST | SNOW 5 | 3 Ese North Boston, NY | COCORAHS STATION NY-ER-65 BOSTON 1.5 NE. |
| Dec 2, 6:54 AM EST | SNOW 4 | Franklinville, NY | COCORAHS STATION NY-CT-22 FRANKLINVILLE 0.5 NNE. |
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 00:00Z, 8.8 hours before the alert went out and 59 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
- 2128 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
071 WWUS41 KBUF 300848 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 348 AM EST Mon Nov 30 2020 NYZ019-020-085-301700- /O.UPG.KBUF.WS.A.0009.201201T0600Z-201202T2200Z/ /O.NEW.KBUF.WS.W.0004.201201T0600Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 348 AM EST Mon Nov 30 2020 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 15 inches, with the greatest amounts expected along the Chautauqua Ridge and Boston Hills. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...From 1 AM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could become very difficult. The hazardous conditions could impact the morning and evening commutes both Tuesday and Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ TMA
10 follow-up statements
643 WWUS41 KBUF 301429 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 929 AM EST Mon Nov 30 2020 NYZ019-020-085-302300- /O.CON.KBUF.WS.W.0004.201201T0600Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 929 AM EST Mon Nov 30 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 15 inches, with the greatest amounts expected along the Chautauqua Ridge and Boston Hills. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...From 1 AM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ Apffel
845 WWUS41 KBUF 301732 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1232 PM EST Mon Nov 30 2020 NYZ019-020-085-010330- /O.CON.KBUF.WS.W.0004.201201T0600Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 1232 PM EST Mon Nov 30 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 15 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with much less accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...From 1 AM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-010330- /O.NEW.KBUF.WW.Y.0024.201201T1800Z-201202T1800Z/ Wyoming- Including the city of Warsaw 1232 PM EST Mon Nov 30 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches. Winds gusting as high as 30 mph. * WHERE...Wyoming county. * WHEN...From 1 PM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ Apffel
142 WWUS41 KBUF 010255 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 955 PM EST Mon Nov 30 2020 NYZ019-020-085-011100- /O.CON.KBUF.WS.W.0004.201201T0600Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 955 PM EST Mon Nov 30 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Heavy snow expected. Rain and snow will change to snow by daybreak on Tuesday. Total snow accumulations of 8 to 15 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 1 to 3 inches of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...From 1 AM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commute on Tuesday and the morning commute on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-011100- /O.CON.KBUF.WW.Y.0024.201201T1800Z-201202T1800Z/ Wyoming- Including the city of Warsaw 955 PM EST Mon Nov 30 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM TUESDAY TO 1 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches. Winds gusting as high as 30 mph. * WHERE...Wyoming county. * WHEN...From 1 PM Tuesday to 1 PM EST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ JLA
533 WWUS41 KBUF 010843 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 343 AM EST Tue Dec 1 2020 NYZ019-020-085-011645- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 343 AM EST Tue Dec 1 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 7 to 13 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 2 inches or less of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 1 PM EST Wednesday. * IMPACTS...The hazardous conditions could impact the morning and evening commute today and the morning commute on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ006>008-011645- /O.EXB.KBUF.WW.Y.0024.201202T0100Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 343 AM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 7 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches on the Tug Hill, and higher terrain with 2 inches or less of accumulation across lower elevations. Winds gusting as high as 30 mph. * WHERE...The Eastern Lake Ontario Region. * WHEN...From 8 PM this evening to 7 PM EST Wednesday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the morning or evening commutes on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ012-011645- /O.CON.KBUF.WW.Y.0024.201201T1800Z-201202T1800Z/ Wyoming- Including the city of Warsaw 343 AM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 6 inches, with the greatest amounts across the higher terrain. Winds gusting as high as 35 mph. * WHERE...Wyoming county. * WHEN...From 1 PM this afternoon to 1 PM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. 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. && $$ TMA
533 WWUS41 KBUF 011447 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 947 AM EST Tue Dec 1 2020 NYZ019-020-085-012300- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 947 AM EST Tue Dec 1 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 7 to 13 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 2 inches or less of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 35 mph. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. Greatest accumulations across higher terrain. * WHEN...Until 1 PM EST Wednesday. Heaviest snow will occur from late this afternoon through early Wednesday morning. * IMPACTS...The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. Roads will be snow covered and very slippery. Visibility will be poor at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-012300- /O.CON.KBUF.WW.Y.0024.201201T1800Z-201202T1800Z/ Wyoming- Including the city of Warsaw 947 AM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST WEDNESDAY... * WHAT...Snow. Total snow accumulations of 2 to 6 inches, with the greatest amounts across the higher terrain. Winds gusting as high as 35 mph. * WHERE...Wyoming county. Greatest accumulations across the higher terrain. * WHEN...From 1 PM this afternoon to 1 PM EST Wednesday. The majority of the snow will accumulate from late this afternoon through early Wednesday morning. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. 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. && $$ NYZ006>008-012300- /O.CON.KBUF.WW.Y.0024.201202T0100Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 947 AM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 7 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches on the Tug Hill Plateau, and higher terrain with 2 inches or less of accumulation across lower elevations. Winds gusting as high as 30 mph. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across the Tug Hill Plateau. * WHEN...From 8 PM this evening to 7 PM EST Wednesday. The majority of the snow accumulation will be very late tonight through Wednesday. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions could impact the morning and evening commutes on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ Hitchcock
767 WWUS41 KBUF 012003 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 303 PM EST Tue Dec 1 2020 NYZ019-020-085-020415- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 303 PM EST Tue Dec 1 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 7 to 13 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 2 to 4 inches of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 40 mph will produce some blowing and drifting snow. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. Greatest accumulations across higher terrain. * WHEN...Until 1 PM EST Wednesday. Heaviest snow will occur from late this afternoon through early Wednesday morning. * IMPACTS...The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. Roads will be snow covered and very slippery. Visibility will be poor at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-020415- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1800Z/ Wyoming- Including the city of Warsaw 303 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches, with the greatest amounts across the higher terrain. Winds gusting as high as 40 mph will produce some blowing and drifting snow. * WHERE...Wyoming county. Greatest accumulations across the higher terrain. * WHEN...Until 1 PM EST Wednesday. The majority of the snow will accumulate from late this afternoon through early Wednesday morning. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ006>008-020415- /O.CON.KBUF.WW.Y.0024.201202T0100Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 303 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 7 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches on the Tug Hill Plateau, and higher terrain with 1 to 3 inches of accumulation across lower elevations. Winds gusting as high as 30 mph. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across the Tug Hill Plateau. * WHEN...From 8 PM this evening to 7 PM EST Wednesday. The majority of the snow accumulation will be very late tonight through Wednesday. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions could impact the morning and evening commutes on Wednesday. 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. && $$ Hitchcock
872 WWUS41 KBUF 012219 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 519 PM EST Tue Dec 1 2020 NYZ019-020-085-020630- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 519 PM EST Tue Dec 1 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 7 to 13 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 2 to 4 inches of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 40 mph will produce some blowing and drifting snow. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 1 PM EST Wednesday. Heaviest snow will occur through early Wednesday morning. * IMPACTS...The hazardous conditions could impact the evening commute and the morning commute on Wednesday. Roads will be snow covered and very slippery. Visibility will be poor at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ001-002-020630- /O.EXB.KBUF.WW.Y.0024.201202T0000Z-201202T1100Z/ Niagara-Orleans- Including the cities of Niagara Falls and Medina 519 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST WEDNESDAY... * WHAT...Snow expected. Snow accumulations of 3 to 5 inches tonight. Winds gusting as high as 35 mph. * WHERE...Niagara and Orleans counties. * WHEN...Until 6 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. 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. && $$ NYZ012-020630- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1800Z/ Wyoming- Including the city of Warsaw 519 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph. * WHERE...Wyoming county. * WHEN...Until 1 PM EST Wednesday. The majority of the snow will accumulate through early Wednesday morning. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. The hazardous conditions could impact the evening commute today and the morning commute on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ006>008-020630- /O.CON.KBUF.WW.Y.0024.201202T0100Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 519 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches on the Tug Hill Plateau, and higher terrain with 1 to 3 inches of accumulation across lower elevations. Winds gusting as high as 30 mph. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across the Tug Hill Plateau. * WHEN...Until 7 PM EST Wednesday. The majority of the snow accumulation will be very late tonight through Wednesday. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions could impact the morning and evening commutes on Wednesday. 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. && $$ Apffel
404 WWUS41 KBUF 020218 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 918 PM EST Tue Dec 1 2020 NYZ019-020-085-021030- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 918 PM EST Tue Dec 1 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 7 to 13 inches along the Chautauqua Ridge, Boston Hills, and across higher terrain with 2 to 4 inches of accumulation along Interstate 90 and the immediate lakeshore. Winds gusting as high as 40 mph will produce some blowing and drifting snow. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 1 PM EST Wednesday. Heaviest snow will occur through early Wednesday morning. * IMPACTS...The hazardous conditions could impact the morning commute on Wednesday. Roads will be snow covered and very slippery. Visibility will be poor at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-021030- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1800Z/ Wyoming- Including the city of Warsaw 918 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph. * WHERE...Wyoming county. * WHEN...Until 1 PM EST Wednesday. The majority of the snow will accumulate through early Wednesday morning. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. The hazardous conditions could impact the morning commute on Wednesday. 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. && $$ NYZ006>008-021030- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 918 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches on the Tug Hill Plateau, and higher terrain with 2 to 4 inches of accumulation across lower elevations. Winds gusting as high as 30 mph. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across the Tug Hill Plateau. * WHEN...Until 7 PM EST Wednesday. The majority of the snow accumulation will be very late tonight through Wednesday. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions will primarily impact the Wednesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ001-002-021030- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1100Z/ Niagara-Orleans- Including the cities of Niagara Falls and Medina 918 PM EST Tue Dec 1 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches tonight. Winds gusting as high as 35 mph. * WHERE...Niagara and Orleans counties. * WHEN...Until 6 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. 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. && $$ Apffel
142 WWUS41 KBUF 020854 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 354 AM EST Wed Dec 2 2020 NYZ019-020-085-021700- /O.CON.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 354 AM EST Wed Dec 2 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations of up to 3 inches. Winds gusting as high as 40 mph will produce some blowing snow. * WHERE...Chautauqua, Cattaraugus, and Southern Erie counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...The hazardous conditions could impact the commute this morning. Roads will be snow covered and very slippery. Visibility will be poor at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Widespread accumulating snow will create dangerous travel conditions. Submit snow reports through our website or social media. && $$ NYZ012-021700- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1800Z/ Wyoming- Including the city of Warsaw 354 AM EST Wed Dec 2 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations of up to 2 inches. Winds gusting as high as 40 mph. * WHERE...Wyoming county. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. The hazardous conditions could impact the commute this morning. 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. && $$ NYZ006>008-021700- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 354 AM EST Wed Dec 2 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 3 to 6 inches on the Tug Hill Plateau, and higher terrain with less 3 inches of additional accumulation across lower elevations. Winds gusting as high as 35 mph. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST this evening. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions will primarily impact the morning commute this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ001-002-021100- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201202T1100Z/ Niagara-Orleans- Including the cities of Niagara Falls and Medina 354 AM EST Wed Dec 2 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to an inch. * WHERE...Niagara and Orleans counties. * WHEN...Until 6 AM EST early this morning. * IMPACTS...Plan on slippery road conditions. 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. && $$ TMA
757 WWUS41 KBUF 021146 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 646 AM EST Wed Dec 2 2020 NYZ019-020-085-021300- /O.CAN.KBUF.WS.W.0004.000000T0000Z-201202T1800Z/ Chautauqua-Cattaraugus-Southern Erie- Including the cities of Jamestown, Olean, Orchard Park, and Springville 646 AM EST Wed Dec 2 2020 ...WINTER STORM WARNING IS CANCELLED... The heaviest snow has ended. A few narrow snow bands may produce another inch or so this morning. Be alert for slick conditions this morning. $$ NYZ012-021300- /O.CAN.KBUF.WW.Y.0024.000000T0000Z-201202T1800Z/ Wyoming- Including the city of Warsaw 646 AM EST Wed Dec 2 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... The heaviest snow has ended. A few narrow snow bands may produce another inch or so this morning. Be alert for slick conditions this morning. $$ NYZ006>008-022000- /O.CON.KBUF.WW.Y.0024.000000T0000Z-201203T0000Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 646 AM EST Wed Dec 2 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 3 to 6 inches on the Tug Hill Plateau, and higher terrain with less 3 inches of additional accumulation across lower elevations. Winds gusting as high as 35 mph. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 7 PM EST this evening. * IMPACTS...Travel could be difficult at times with snow covered roads and reduced visibility. The hazardous conditions will primarily impact the morning commute this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ TMA
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this winter storm warning went out at Nov 29, 10:13 PM EST, 5 hours 35 minutes earlier.
Area forecast discussion, Nov 29, 10:13 PM EST, 5 hours 35 minutes before
Area Forecast Discussion
National Weather Service Buffalo NY
1013 PM EST Sun Nov 29 2020
.SYNOPSIS...
High pressure off the east coast gives way to a deepening storm
system over the Deep South. The system will move to West Virginia by
daybreak Monday before tracking across the Finger Lakes to the
Adirondacks by Monday evening. It will spread a soaking rain of up
to an inch across our region in the process. This will be followed
by potentially significant snows across parts of the Southern Tier
Tuesday into Wednesday.
&&
.NEAR TERM /THROUGH MONDAY NIGHT/...
Quiet across New York with just increasing cirrus. Temps have fallen
as low as the lower 30s especially east of Lake Ontario with mainly
mid 30s to mid 40s elsewhere. Temps will rise at least a few degrees
late as low pressure deepening over the deep south moves to West
Virginia by daybreak. As that occurs, rain currently lifting across
Tennessee and Ohio Valleys will arrive over Southern Tier right
around daybreak and quickly turn to a steady rain.
Widespread steady rain spreads across entire region Monday as low
continues deepening to less than 995mb as it tracks across Finger
Lakes and Adirondacks. Rainfall should generally range from three
quarters to an inch, but pockets of rainfall over an inch are
likely. 18z and available 00z guidance still in line with this
thinking. Could see moderate rain taper to ligher rain or drizzle in
the afternoon as mid-level dry slot works south to north across the
region. Tight pressure gradient to west of the deepening sfc low
will also lead to breezy north to northeast winds in the afternoon
especially western NY. Those northeast winds off a cooler and moist
Lake Ontario in this regime of low-level moisture has prompted the
addition of fog over western NY in the afternoon, only further
adding to the raw and damp day as temperatures only rise to the mid
40s west to upper 40s/near 50 southeast and east of Lake Ontario.
Cold air will wrap in behind the storm Monday night...which is
expected to be nearly stationary in the vcnty of the Adirondacks by
that time. Wrap around synoptic moisture and the onset of lake
enhancement will set the stage for potentially significant
accumulations of wet snow across parts of the Southern Tier...
especially on and just east of the Chautauqua ridge. This lake
enhancement looks to kick in as early as the overnight hours on
Monday night.
&&
.SHORT TERM /TUESDAY THROUGH THURSDAY/...
The surface low causing the steady rain Monday will linger overhead
of the state of New York Tuesday before it slowly weakens and
meanders northward into southern Canada Wednesday. While this
occurs, cold air on the back side of the low will continue to filter
into the region from the west Tuesday and Tuesday night, deepening
the cold air mass. By Tuesday night, the majority of the region will
be seeing some flakes due to the deeper cold air mass overhead.
Additionally, this air mass will also produce a lake response east
and northeast of the lakes Tuesday night through Wednesday,
producing moderate amounts across the western Southern Tier. Places
across the Chautauqua Ridge could see a foot or more of wet snow
from Tuesday morning to Wednesday morning. Otherwise, for the
areas east of Lake Ontario an inch or two will be possible.
Upper level ridging over the Ohio Valley will produce surface high
pressure over the lower Ohio Valley/Mid-Atlantic Wednesday night and
Thursday. The northern periphery of the surface high pressure and
its associated drier air mass will lie across the region during this
time, shutting off any lingering showers Wednesday night with dry
conditions Thursday.
&&
.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
A cut off upper level low over the Oklahoma Panhandle Thursday will
get picked up by a shortwave trough rounding the northern-stream
longwave trough. These two upper level features will produce two
lows at the surface which will produce the weather for Friday and the
weekend.
The aforementioned shortwave will produce surface low which will
push east across Canada and drag its associated frontal feature
across the region Friday producing chances for showers.
As the upper level low interacts with the shortwave, a surface low
will deepen and push northeast up along the Eastern Seaboard
Saturday and Sunday, which again will produce chances for showers.
Some disagreement still with placement of the sfc low that develops
over the SE U.S. late Saturday into early Sunday, and its track, so
kept chance POPs for now.
Temperatures for the long term period will be near normal.
&&
.AVIATION /03Z MONDAY THROUGH FRIDAY/...
VFR weather through early Monday morning with thickening cirrus
shield. Conditions will then deteriorate by daybreak Monday as cigs
lower to MVFR across the Southern Tier. These lower cigs will be
accompanied by the onset of steady rain.
Cigs, and even in some areas vsby, will lower to IFR/LIFR levels
across the entire region into Monday afternoon as a storm system
advancing north from West Virginia spreads steady rain across all
the TAF sites. In addition to the rain, fog is likely over western
NY in the afternoon.
Outlook...
Monday night...IFR/MVFR. Rain and snow showers.
Tuesday...VFR/MVFR with rain and snow.
Wednesday...VFR/MVFR with the chance for rain and snow showers.
Thursday...Mainly VFR.
Friday...VFR to MVFR with scattered rain and snow showers.
&&
.MARINE...
Rapidly intensifying low pressure over the deep south will bring
about strengthening northeast and northerly winds by midday Monday
into Monday evening. Small craft advisories have been issued for all
areas except the St. Lawrence River. After a break late Monday night
into Tuesday, another round of small craft conditions will develop
later Tuesday through Thursday.
&&
.BUF WATCHES/WARNINGS/ADVISORIES...
NY...Winter Storm Watch from late Monday night through Wednesday
afternoon for NYZ019-020-085.
MARINE...Small Craft Advisory from 10 AM Monday to 4 AM EST Tuesday for
LEZ040-041.
Small Craft Advisory from 10 AM to 10 PM EST Monday for
LEZ020.
Small Craft Advisory from 10 AM Monday to 1 AM EST
Tuesday for LOZ030-042>045.
&&
SYNOPSIS...RSH
NEAR TERM...JLA/RSH
SHORT TERM...EAJ
LONG TERM...EAJ/SW
AVIATION...JLA/RSH
MARINE...JLAHazardous weather outlook, Nov 29, 2:08 PM EST, 13 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Buffalo NY 208 PM EST Sun Nov 29 2020 NYZ001>008-010>014-021-301915- Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis- Northern Erie-Genesee-Wyoming-Livingston-Ontario-Allegany- 208 PM EST Sun Nov 29 2020 This Hazardous Weather Outlook is for portions of western and north central New York. .DAY ONE...This afternoon and tonight. No hazardous weather expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A storm system will bring a soaking rain Monday with a general three quarters of an inch to an inch expected, and may result in ponding of water in poor drainage areas. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf NYZ019-020-085-301915- Chautauqua-Cattaraugus-Southern Erie- 208 PM EST Sun Nov 29 2020 ...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH WEDNESDAY AFTERNOON... This Hazardous Weather Outlook is for portions of western New York. .DAY ONE...This afternoon and tonight. Hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Watch. A storm system will bring a soaking rain Monday with a general three quarters of an inch to an inch expected, and may result in ponding of water in poor drainage areas. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-301915- Upper Niagara River and Buffalo Harbor- Lake Erie nearshore waters from Ripley to Dunkirk- Lake Erie nearshore waters from Dunkirk to Buffalo- Lower Niagara River- Lake Ontario nearshore waters from the Niagara River to Hamlin Beach- Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay- Lake Ontario nearshore waters from Sodus Bay to Mexico Bay- Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence River- Lake Ontario open waters from the Niagara River to Hamlin Beach- Lake Ontario open waters from Hamlin Beach to Sodus Bay- Lake Ontario open waters from Sodus Bay to Mexico Bay- Lake Ontario open waters from Mexico Bay to the Saint Lawrence River- Saint Lawrence River from Cape Vincent to Ogdensburg- Saint Lawrence River from Ogdensburg to Saint Regis- 208 PM EST Sun Nov 29 2020 This Hazardous Weather Outlook is for the New York waters of Lake Erie, Lake Ontario, and the Saint Lawrence River. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 29, 9:25 PM EST | Small Craft Advisory | BUF | 5 days | |
| Nov 30, 12:32 PM EST | Winter Weather Advisory | BUF | Jefferson, Lewis, Niagara, Orleans, Oswego, Wyoming | 50 hr |
Nearby
Winter Storm Warnings in New York, 2020Every winter storm warning in 2020
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.