Alert archive / New York / Winter Weather Advisories in 2021
Winter Weather Advisory 28, NWS Buffalo, NY
NWS Buffalo, NY issued this winter weather advisory at Dec 17, 2021, 1:53 PM EST for 11 counties in New York. It took effect at Dec 18, 2021, 4:00 AM EST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Dec 17, 2021, 1:53 PM EST (18:53 UTC)
- In effect from
- Dec 18, 2021, 4:00 AM EST
- Expired
- Dec 18, 2021, 9:55 PM EST
- In force
- 18 hr
- Issued by
- NWS Buffalo, NY
Counties Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Ontario County, NY, Oswego County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 18:57 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, 6.9 hours before the alert went out and 86 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
- 940 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
387 WWUS41 KBUF 171853 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 153 PM EST Fri Dec 17 2021 NYZ012>014-019>021-180300- /O.NEW.KBUF.WW.Y.0028.211218T0900Z-211218T1800Z/ Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus-Allegany- Including the cities of Warsaw, Geneseo, Canandaigua, Jamestown, Olean, and Wellsville 153 PM EST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 1 PM EST SATURDAY... * WHAT...Snow...changing to sleet and freezing rain...then to plain rain expected. Total snow accumulations less than 2 inches and ice accumulations of a trace to a few hundredths of an inch. * WHERE...Wyoming, Livingston, Ontario, Chautauqua, Cattaraugus, and Allegany counties. * WHEN...From 4 AM to 1 PM EST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ006>008-180300- /O.NEW.KBUF.WW.Y.0028.211218T1500Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 153 PM EST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 10 PM EST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...The Eastern Lake Ontario Region. * WHEN...From 10 AM to 10 PM EST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$
6 follow-up statements
184 WWUS41 KBUF 180354 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1054 PM EST Fri Dec 17 2021 NYZ012>014-019>021-181200- /O.CON.KBUF.WW.Y.0028.211218T0900Z-211218T1800Z/ Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus-Allegany- Including the cities of Warsaw, Geneseo, Canandaigua, Jamestown, Olean, and Wellsville 1054 PM EST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 1 PM EST SATURDAY... * WHAT...Snow...changing to sleet and freezing rain...then to plain rain expected. Total snow accumulations less than 2 inches and ice accumulations of a trace to a few hundredths of an inch. * WHERE...Wyoming, Livingston, Ontario, Chautauqua, Cattaraugus, and Allegany counties. * WHEN...From 4 AM to 1 PM EST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ006>008-181200- /O.CON.KBUF.WW.Y.0028.211218T1500Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 1054 PM EST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM EST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...The Eastern Lake Ontario Region. * WHEN...From 10 AM to 10 PM EST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$
958 WWUS41 KBUF 180900 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 400 AM EST Sat Dec 18 2021 NYZ011-085-181700- /O.EXA.KBUF.WW.Y.0028.211218T0900Z-211218T1800Z/ Genesee-Southern Erie- Including the cities of Batavia, Orchard Park, and Springville 400 AM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Snow...changing to sleet and freezing rain...then to plain rain expected. Total snow accumulations less than 3 inches and ice accumulations of a trace to a few hundredths of an inch. * WHERE...Genesee and Southern Erie counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ012>014-019>021-181700- /O.CON.KBUF.WW.Y.0028.000000T0000Z-211218T1800Z/ Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus-Allegany- Including the cities of Warsaw, Geneseo, Canandaigua, Jamestown, Olean, and Wellsville 400 AM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Snow...changing to sleet and freezing rain...then to plain rain expected. Total snow accumulations less than 2 inches and ice accumulations of a trace to a few hundredths of an inch. * WHERE...Wyoming, Livingston, Ontario, Chautauqua, Cattaraugus, and Allegany counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ006>008-181700- /O.CON.KBUF.WW.Y.0028.211218T1500Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 400 AM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 PM EST THIS EVENING... * WHAT...Snow expected. Some pockets of sleet and freezing rain possible. Total snow accumulations of 3 to 5 inches. * WHERE...The Eastern Lake Ontario Region. * WHEN...From 10 AM this morning to 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ TMA
054 WWUS41 KBUF 181447 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 947 AM EST Sat Dec 18 2021 NYZ011>014-019>021-085-181800- /O.CON.KBUF.WW.Y.0028.000000T0000Z-211218T1800Z/ Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 947 AM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Mixed precipitation. Additional snow accumulations of an inch or less and ice accumulations of up to one tenth of an inch. * WHERE...Genesee, Wyoming, Livingston, Ontario, Chautauqua, Cattaraugus, Allegany, and Southern Erie counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions on untreated surfaces, especially on bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ006>008-182300- /O.CON.KBUF.WW.Y.0028.211218T1500Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 947 AM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow expected, possibly mixed with sleet over southern portions of the area. Total snow accumulations of 3 to 6 inches. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across higher terrain of the Tug Hill Plateau and western foothills of the Adirondacks. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ Hitchcock
183 WWUS41 KBUF 181740 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1240 PM EST Sat Dec 18 2021 NYZ011>014-019>021-085-181845- /O.CAN.KBUF.WW.Y.0028.000000T0000Z-211218T1800Z/ Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 1240 PM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Temperatures will continue to rise this afternoon, with most locations changing to rain. $$ NYZ006>008-190145- /O.CON.KBUF.WW.Y.0028.000000T0000Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 1240 PM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 3 to 5 inches. * WHERE...The Eastern Lake Ontario Region. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. 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. && $$ Hitchcock
802 WWUS41 KBUF 181935 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 235 PM EST Sat Dec 18 2021 NYZ006>008-190300- /O.CON.KBUF.WW.Y.0028.000000T0000Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 235 PM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 3 to 5 inches, bringing total accumulations into the 4 to 7 inch range. * WHERE...The Eastern Lake Ontario Region. Greatest accumulations across the higher terrain of the Tug Hill and western foothills of the Adirondacks. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on snow covered and slippery road conditions with reduced visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ Hitchcock
795 WWUS41 KBUF 190255 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 955 PM EST Sat Dec 18 2021 NYZ006>008-190400- /O.CAN.KBUF.WW.Y.0028.000000T0000Z-211219T0300Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 955 PM EST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Though some patchy light snow and freezing drizzle may occur into the overnight hours, the steady snow has ended over the North Country and the winter weather advisory has been cancelled. Use caution if traveling the rest of tonight as some roads may still be snow covered and slippery. $$ JLA
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.