Alert archive / New York / Winter Weather Advisories in 2021
Winter Weather Advisory 33, NWS Buffalo, NY
NWS Buffalo, NY issued this winter weather advisory at Dec 28, 2021, 12:50 PM EST for Allegany County, Cattaraugus County, Chautauqua County, New York. It took effect at Dec 28, 2021, 4:00 PM EST. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Dec 28, 2021, 12:50 PM EST (17:50 UTC)
- In effect from
- Dec 28, 2021, 4:00 PM EST
- Expired
- Dec 29, 2021, 3:06 AM EST
- In force
- 11 hr
- Issued by
- NWS Buffalo, NY
Counties Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 76 km from the middle of the area, began a volume at 17:49 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, 5.8 hours before the alert went out and 73 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
- 816 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
155 WWUS41 KBUF 281750 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1250 PM EST Tue Dec 28 2021 NYZ019>021-290200- /O.NEW.KBUF.WW.Y.0033.211228T2100Z-211229T0900Z/ Chautauqua-Cattaraugus-Allegany- Including the cities of Jamestown, Olean, and Wellsville 1250 PM EST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EST WEDNESDAY... * WHAT...Snow mixing with and changing to freezing drizzle or sleet expected. Total snow accumulations of 1 to 3 inches and ice accumulations of a few hundredths of an inch. * WHERE...The western Southern Tier. * WHEN...From 4 PM this afternoon to 4 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. 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. && $$
3 follow-up statements
210 WWUS41 KBUF 282114 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 414 PM EST Tue Dec 28 2021 NYZ019>021-290530- /O.CON.KBUF.WW.Y.0033.000000T0000Z-211229T0900Z/ Chautauqua-Cattaraugus-Allegany- Including the cities of Jamestown, Olean, and Wellsville 414 PM EST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY... * WHAT...Mixed precipitation. Total snow accumulations of 1 to 3 inches and ice accumulations of a few hundredths of an inch. * WHERE...The Western Southern Tier. * WHEN...Until 4 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the latter portions of the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$
211 WWUS41 KBUF 290337 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1037 PM EST Tue Dec 28 2021 NYZ019>021-290900- /O.CON.KBUF.WW.Y.0033.000000T0000Z-211229T0900Z/ Chautauqua-Cattaraugus-Allegany- Including the cities of Jamestown, Olean, and Wellsville 1037 PM EST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY... * WHAT...Light snow and freezing drizzle. Additional snow accumulations udner an inch with ice accumulations of a couple hundredths of an inch possible. * WHERE...The western Southern Tier. * WHEN...Until 4 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of light snow and freezing drizzle will result in slick roads. Slow down and use caution while driving. && $$
542 WWUS41 KBUF 290806 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 306 AM EST Wed Dec 29 2021 NYZ019>021-290915- /O.CAN.KBUF.WW.Y.0033.000000T0000Z-211229T0900Z/ Chautauqua-Cattaraugus-Allegany- Including the cities of Jamestown, Olean, and Wellsville 306 AM EST Wed Dec 29 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Patchy drizzle and freezing drizzle has diminished early this morning. Use caution if traveling early this morning as even though primary roads are mainly wet, untreated and less traveled roads could be icy in spots. $$ 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.