Alert archive / New York / Winter Weather Advisories in 2021
Winter Weather Advisory 2, NWS Buffalo, NY
NWS Buffalo, NY issued this winter weather advisory at Jan 12, 2021, 1:20 PM EST for 5 counties in New York. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Jan 12, 2021, 1:20 PM EST (18:20 UTC)
- Expired
- Jan 13, 2021, 10:00 AM EST
- In force
- 21 hr
- Issued by
- NWS Buffalo, NY
Counties Erie County, NY, Genesee County, NY, Monroe County, NY, Niagara County, NY, Orleans County, NY
The radar
The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 18:19 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, 6.3 hours before the alert went out and 36 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
- 669 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
872 WWUS41 KBUF 121820 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 120 PM EST Tue Jan 12 2021 NYZ001-002-010-011-130000- /O.NEW.KBUF.WW.Y.0002.210112T1820Z-210113T0000Z/ Niagara-Orleans-Northern Erie-Genesee- Including the cities of Niagara Falls, Medina, Buffalo, and Batavia 120 PM EST Tue Jan 12 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Freezing drizzle. * WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. * WHEN...Until 7 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of freezing drizzle will result in slippery conditions on untreated roads, sidewalks, and parking lots. && $$ TMA
4 follow-up statements
253 WWUS41 KBUF 122124 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 424 PM EST Tue Jan 12 2021 NYZ001-002-010-011-130600- /O.EXT.KBUF.WW.Y.0002.000000T0000Z-210113T0600Z/ Niagara-Orleans-Northern Erie-Genesee- Including the cities of Niagara Falls, Medina, Buffalo, and Batavia 424 PM EST Tue Jan 12 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 AM EST WEDNESDAY... * WHAT...Freezing drizzle. Additional ice accumulations of a few hundredths of an inch. * WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. * WHEN...Until 1 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods snow, sleet, or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ Apffel
990 WWUS41 KBUF 130202 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 902 PM EST Tue Jan 12 2021 NYZ001-002-010-011-130900- /O.EXT.KBUF.WW.Y.0002.000000T0000Z-210113T0900Z/ Niagara-Orleans-Northern Erie-Genesee- Including the cities of Niagara Falls, Medina, Buffalo, and Batavia 902 PM EST Tue Jan 12 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM EST WEDNESDAY... * WHAT...Freezing drizzle. Additional ice accumulations of a few hundredths of an inch. * WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. * WHEN...Until 4 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions and walkways, especially in the Buffalo metro area. 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. && $$ Apffel
596 WWUS41 KBUF 130823 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 323 AM EST Wed Jan 13 2021 NYZ003-131500- /O.EXB.KBUF.WW.Y.0002.000000T0000Z-210113T1500Z/ Monroe- Including the city of Rochester 323 AM EST Wed Jan 13 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Freezing drizzle. Additional ice accumulations of a few hundredths of an inch. * WHERE...Monroe county. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions and walkways. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow, sleet or freezing rain will result in slippery roads and limited visibilities. Slow down and use caution while driving. Submit snow and ice reports through our website or social media. && $$ NYZ001-002-010-011-131500- /O.EXT.KBUF.WW.Y.0002.000000T0000Z-210113T1500Z/ Niagara-Orleans-Northern Erie-Genesee- Including the cities of Niagara Falls, Medina, Buffalo, and Batavia 323 AM EST Wed Jan 13 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Freezing drizzle. Additional ice accumulations of a few hundredths of an inch. * WHERE...Niagara, Orleans, Northern Erie, and Genesee counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions and walkways, especially in the Buffalo metro area. 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. && $$
271 WWUS41 KBUF 131439 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 939 AM EST Wed Jan 13 2021 NYZ001>003-010-011-131545- /O.EXP.KBUF.WW.Y.0002.000000T0000Z-210113T1500Z/ Niagara-Orleans-Monroe-Northern Erie-Genesee- Including the cities of Niagara Falls, Medina, Rochester, Buffalo, and Batavia 939 AM EST Wed Jan 13 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING... The threat for freezing drizzle has ended. $$ TMA
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.