Alert archive / New York / Lake Effect Snow Watches in 2007

Lake Effect Snow Watch 15, NWS Buffalo, NY

November 27, 20077 counties in New York

NWS Buffalo, NY issued this lake effect snow watch at Nov 27, 2007, 3:49 PM EST for 7 counties in New York. It took effect at Nov 29, 2007, 10:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Nov 27, 2007, 3:49 PM EST (20:49 UTC)
In effect from: Nov 29, 2007, 10:00 AM EST
Expired: Nov 28, 2007, 3:13 PM EST
In force
Issued by: NWS Buffalo, NY

Counties Cattaraugus 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), 98 km from the middle of the area, began a volume at 20:48 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, 8.8 hours before the alert went out and 95 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 684 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: 69 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 lake effect snow 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 lake effect snow watch went out at Nov 27, 3:29 PM EST, 20 minutes earlier.

Area forecast discussion, Nov 27, 3:29 PM EST, 20 minutes before

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Hazardous weather outlook, Nov 27, 10:10 AM EST, 5 hours 39 minutes before

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In the hours before

Special weather statement, Nov 27, 2:39 PM EST, 1 hour 10 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
Nov 27, 9:41 AM EST	Wind Advisory	BUF	Erie, Genesee, Monroe, Niagara, Orleans	10 hr
Nov 27, 9:52 AM EST	Winter Weather Advisory	BUF	Cattaraugus, Chautauqua, Erie, Jefferson, Lewis, Oswego and 1 more	12 hr

Nearby

Lake Effect Snow Watches in New York, 2007 Every lake effect snow watch in 2007

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.