Alert archive / New York / Winter Storm Watches in 2017
Winter Storm Watch 9, NWS Buffalo, NY
NWS Buffalo, NY issued this winter storm watch at Dec 23, 2017, 6:35 PM EST for 9 counties in New York. It took effect at Dec 24, 2017, 5:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 23, 2017, 6:35 PM EST (23:35 UTC)
- In effect from
- Dec 24, 2017, 5:00 PM EST
- Expired
- Dec 24, 2017, 4:00 AM EST
- In force
- Issued by
- NWS Buffalo, NY
Counties Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Jefferson County, NY, Lewis County, NY, Oswego County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 102 km from the middle of the area, began a volume at 23:38 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, 11.6 hours before the alert went out and 99 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
- 438 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
066 WWUS41 KBUF 232335 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 635 PM EST Sat Dec 23 2017 NYZ001>004-010-011-013-014-240745- /O.CAN.KBUF.WW.Y.0032.000000T0000Z-171224T0000Z/ /O.NEW.KBUF.WW.Y.0034.171224T2200Z-171225T1500Z/ Niagara-Orleans-Monroe-Wayne-Northern Erie-Genesee-Livingston- Ontario- Including the cities of Niagara Falls, Medina, Rochester, Newark, Buffalo, Batavia, Geneseo, and Canandaigua 635 PM EST Sat Dec 23 2017 ...A NEW WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 10 AM EST MONDAY... ...THE PREVIOUS WINTER WEATHER ADVISORY HAS BEEN CANCELLED... * WHAT...Snow and blowing snow expected. Plan on slippery road conditions Christmas Eve night. In addition, areas of poor visibility are expected. Total snow accumulations of 3 to 6 inches are expected. * WHERE...Niagara, Orleans, Monroe, Wayne, Northern Erie, Genesee, Livingston, and Ontario counties. * WHEN...5 PM Sunday to 10 AM Monday. * ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow and blowing 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. && $$ NYZ005>008-240745- /O.CAN.KBUF.WW.Y.0032.000000T0000Z-171224T0000Z/ /O.NEW.KBUF.WS.A.0009.171225T0200Z-171227T1700Z/ Northern Cayuga-Oswego-Jefferson-Lewis- Including the cities of Fair Haven, Oswego, Watertown, and Lowville 635 PM EST Sat Dec 23 2017 ...A WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH WEDNESDAY MORNING... ...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED... * WHAT...Heavy snow and blowing snow possible. A widespread general snow is expected to accumulate several inches Christmas Eve night followed by a potentially significant Lake Effect Snow event Christmas Day into Wednesday. Travel will be very difficult within lake effect snow, including during the morning commute on Tuesday. Total snow accumulations of 2 feet or more possible in the more persistent lake snows. * WHERE...Northern Cayuga, Oswego, Jefferson, and Lewis counties. Highest accumulations possible on the Tug Hill. * WHEN...From Sunday evening through Wednesday morning. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ NYZ012-085-240745- /O.CAN.KBUF.WW.Y.0032.000000T0000Z-171224T0000Z/ /O.NEW.KBUF.WS.A.0009.171224T2200Z-171227T0000Z/ Wyoming-Southern Erie- Including the cities of Warsaw, Orchard Park, and Springville 635 PM EST Sat Dec 23 2017 ...A WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH TUESDAY EVENING... ...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED... * WHAT...Heavy snow and blowing snow possible. A widespread general snow is expected to accumulate several inches Christmas Eve night followed by a potentially significant Lake Effect Snow event Christmas Day into Tuesday evening. Travel will be very difficult in Lake Effect Snow, including during the evening commute on Tuesday. Total snow accumulations of 1 to 2 feet are possible. * WHERE...Wyoming and Southern Erie counties. Highest accumulations possible toward the Southern Tier. * WHEN...From Sunday afternoon through Tuesday evening. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ NYZ019>021-240745- /O.CAN.KBUF.WW.Y.0033.000000T0000Z-171224T0000Z/ /O.NEW.KBUF.WS.A.0009.171224T2200Z-171227T0000Z/ Chautauqua-Cattaraugus-Allegany- Including the cities of Jamestown, Olean, and Wellsville 635 PM EST Sat Dec 23 2017 ...A WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH TUESDAY EVENING... ...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED... * WHAT...Heavy snow and blowing snow possible. A widespread general snow is expected to accumulate several inches Christmas Eve night followed by a potentially significant Lake Effect Snow event Christmas Day into Tuesday evening. Travel will be very difficult in Lake Effect Snow, including during the morning commute on Tuesday. Total snow accumulations of 1 to 2 feet are possible. * WHERE...The western Southern Tier. Highest accumulations possible on the Chautauqua Ridge. * WHEN...From Sunday afternoon through Tuesday evening. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Begin needed preparations at home or with your vehicle. Travel may become difficult, so plan accordingly. && $$ SMITH
1 follow-up statement
028 WWUS41 KBUF 240900 WSWBUF URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 400 AM EST Sun Dec 24 2017 NYZ012-019>021-085-241700- /O.UPG.KBUF.WS.A.0009.171224T2200Z-171227T0000Z/ /O.NEW.KBUF.LE.W.0012.171224T2200Z-171227T2300Z/ Wyoming-Chautauqua-Cattaraugus-Allegany-Southern Erie- Including the cities of Warsaw, Jamestown, Olean, Wellsville, Orchard Park, and Springville 400 AM EST Sun Dec 24 2017 ...LAKE EFFECT SNOW WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 6 PM EST WEDNESDAY... * WHAT...Heavy lake effect snow expected. Travel will become very difficult, including Christmas Day as well as the back to work morning commute on Tuesday. Total snow accumulations of up to 3 feet are expected in the most persistent lake snows. * WHERE...Southern Erie and Wyoming counties and the western Southern Tier. * WHEN...5 PM today to 6 PM Wednesday. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of significant blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heavy snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media. && $$ NYZ005>008-241700- /O.UPG.KBUF.WS.A.0009.171225T0200Z-171227T1700Z/ /O.NEW.KBUF.LE.W.0012.171225T0200Z-171227T2300Z/ Northern Cayuga-Oswego-Jefferson-Lewis- Including the cities of Fair Haven, Oswego, Watertown, and Lowville 400 AM EST Sun Dec 24 2017 ...LAKE EFFECT SNOW WARNING IN EFFECT FROM 9 PM THIS EVENING TO 6 PM EST WEDNESDAY... * WHAT...Heavy lake effect snow expected. Travel will become very difficult to impossible, including Christmas Day as well as the back to work morning commute on Tuesday. Total snow accumulations of 3 to 4 feet are expected in the most persistent lake snows. * WHERE...Northern Cayuga, Oswego, Jefferson, and Lewis counties. * WHEN...9 PM today to 6 PM Wednesday. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of significant blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heavy snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media. && $$ NYZ001>004-010-011-013-014-241700- /O.CON.KBUF.WW.Y.0034.171224T2200Z-171225T1500Z/ Niagara-Orleans-Monroe-Wayne-Northern Erie-Genesee-Livingston- Ontario- Including the cities of Niagara Falls, Medina, Rochester, Newark, Buffalo, Batavia, Geneseo, and Canandaigua 400 AM EST Sun Dec 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 10 AM EST MONDAY... * WHAT...Snow and blowing snow expected. Plan on difficult travel conditions. Total snow accumulations of 4 to 7 inches are expected. * WHERE...Niagara, Orleans, Monroe, Wayne, Northern Erie, Genesee, Livingston, and Ontario counties. * WHEN...5 PM today to 10 AM Monday. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Periods of snow and blowing 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. && $$
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 12:59 PM EST | Small Craft Advisory | BUF | 15 hr | |
| Dec 23, 6:35 PM EST | Winter Weather Advisory | BUF | Erie, Genesee, Livingston, Monroe, Niagara, Ontario and 2 more | 54 hr |
Nearby
Winter Storm Watches in New York, 2017Every winter storm watch in 2017
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.