Alert archive / New York / Winter Storm Watches in 2021
Winter Storm Watch 7, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm watch at Mar 30, 2021, 2:51 PM EDT for 9 counties in New York. It took effect at Mar 31, 2021, 11:00 PM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 30, 2021, 2:51 PM EDT (18:51 UTC)
- In effect from
- Mar 31, 2021, 11:00 PM EDT
- Expired
- Mar 31, 2021, 3:57 AM EDT
- In force
- Issued by
- NWS Buffalo, NY
Counties Allegany County, NY, Cayuga County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Oswego County, NY, Wayne County, NY
The radar
The Ft Drum radar (KTYX), 119 km from the middle of the area, began a volume at 18:54 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 149 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
- 2993 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
866 WWUS41 KBUF 301851 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 251 PM EDT Tue Mar 30 2021 NYZ003>005-013-014-021-310300- /O.NEW.KBUF.WS.A.0007.210401T0300Z-210402T0000Z/ Monroe-Wayne-Northern Cayuga-Livingston-Ontario-Allegany- Including the cities of Rochester, Newark, Fair Haven, Geneseo, Canandaigua, and Wellsville 251 PM EDT Tue Mar 30 2021 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations in excess of 7 inches possible. * WHERE...Monroe, Wayne, Northern Cayuga, Livingston, Ontario, and Allegany counties. * WHEN...From Wednesday evening through Thursday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ NYZ006>008-310300- /O.NEW.KBUF.WS.A.0007.210401T0300Z-210402T0600Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 251 PM EDT Tue Mar 30 2021 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE THURSDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations in excess of 9 inches possible. * WHERE...The Eastern Lake Ontario Region. * WHEN...From Wednesday evening through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ JLA
2 follow-up statements
218 WWUS41 KBUF 310232 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1032 PM EDT Tue Mar 30 2021 NYZ003>005-013-014-021-311045- /O.CON.KBUF.WS.A.0007.210401T0300Z-210402T0000Z/ Monroe-Wayne-Northern Cayuga-Livingston-Ontario-Allegany- Including the cities of Rochester, Newark, Fair Haven, Geneseo, Canandaigua, and Wellsville 1032 PM EDT Tue Mar 30 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations in excess of 7 inches possible. * WHERE...Monroe, Wayne, Northern Cayuga, Livingston, Ontario, and Allegany counties. * WHEN...From Wednesday evening through Thursday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ NYZ006>008-311045- /O.CON.KBUF.WS.A.0007.210401T0300Z-210402T0600Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 1032 PM EDT Tue Mar 30 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE THURSDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations in excess of 9 inches possible. * WHERE...The Eastern Lake Ontario Region. * WHEN...From Wednesday evening through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$
634 WWUS41 KBUF 310757 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 357 AM EDT Wed Mar 31 2021 NYZ006>008-311700- /O.UPG.KBUF.WS.A.0007.210401T0300Z-210402T0600Z/ /O.NEW.KBUF.WS.W.0004.210401T0300Z-210401T2100Z/ Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 357 AM EDT Wed Mar 31 2021 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM EDT THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. * WHERE...The Eastern Lake Ontario Region. * WHEN...From 11 PM this evening to 5 PM EDT Thursday. * 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. && $$ NYZ004-005-014-311700- /O.UPG.KBUF.WS.A.0007.210401T0300Z-210402T0000Z/ /O.NEW.KBUF.WW.Y.0016.210401T0300Z-210401T2100Z/ Wayne-Northern Cayuga-Ontario- Including the cities of Newark, Fair Haven, and Canandaigua 357 AM EDT Wed Mar 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM EDT THURSDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Wayne, Northern Cayuga, and Ontario counties. * WHEN...From 11 PM this evening to 5 PM EDT Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving. Submit snow reports through our website or social media. && $$ NYZ003-013-021-311700- /O.UPG.KBUF.WS.A.0007.210401T0300Z-210402T0000Z/ /O.NEW.KBUF.WW.Y.0016.210401T0300Z-210401T2100Z/ Monroe-Livingston-Allegany- Including the cities of Rochester, Geneseo, and Wellsville 357 AM EDT Wed Mar 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM EDT THURSDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Monroe, Livingston, and Allegany counties. * WHEN...From 11 PM this evening to 5 PM EDT Thursday. * IMPACTS...Plan on slippery road conditions. 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
Nearby
Winter Storm Watches in New York, 2021Every winter storm watch 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.