Alert archive / New York / Winter Storm Watches in 2009

Winter Storm Watch 5, NWS Buffalo, NY

December 8, 20099 counties in New York

NWS Buffalo, NY issued this winter storm watch at Dec 8, 2009, 4:05 PM EST for 9 counties in New York. It took effect at Dec 9, 2009, 7:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 8, 2009, 4:05 PM EST (21:05 UTC)
In effect from: Dec 9, 2009, 7:00 PM EST
Expired: Dec 9, 2009, 3:49 PM EST
In force
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, Oswego County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 87 km from the middle of the area, began a volume at 21:07 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, 9.1 hours before the alert went out and 84 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this winter storm watch went out at Dec 8, 3:46 PM EST, 19 minutes earlier.

Area forecast discussion, Dec 8, 3:46 PM EST, 19 minutes before

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Hazardous weather outlook, Dec 8, 4:50 AM EST, 11 hours 15 minutes before

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The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 8, 4:33 AM EST	High Wind Watch	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	11 hr
Dec 8, 3:16 PM EST	Lakeshore Flood Watch	BUF	Chautauqua, Erie	12 hr
Dec 8, 3:48 PM EST	High Wind Warning	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	42 hr
Dec 8, 4:05 PM EST	Winter Weather Advisory	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	20 hr
Dec 8, 4:51 PM EST	Gale Warning	BUF		3 days
Dec 8, 4:51 PM EST	Storm Warning	BUF		41 hr

Nearby

Winter Storm Watches in New York, 2009 Every winter storm watch in 2009

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.