Alert archive / New York / Winter Weather Advisories in 2017

Winter Weather Advisory 19, NWS Buffalo, NY

December 5, 2017Erie County, Genesee County, New York

NWS Buffalo, NY issued this winter weather advisory at Dec 5, 2017, 1:01 PM EST for Erie County, Genesee County, New York. It took effect at Dec 6, 2017, 1:40 PM EST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Dec 5, 2017, 1:01 PM EST (18:01 UTC)
In effect from: Dec 6, 2017, 1:40 PM EST
Expired: Dec 6, 2017, 9:52 PM EST
In force: 8 hr
Issued by: NWS Buffalo, NY

Counties Erie County, NY, Genesee County, NY

The radar

The Buffalo radar (KBUF), 22 km from the middle of the area, began a volume at 18:03 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, 6.0 hours before the alert went out and 18 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: 710 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 529 m²/s²
0-3 km storm-relative helicity: 594 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 weather advisory 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 weather advisory went out at Dec 5, 10:23 AM EST, 2 hours 38 minutes earlier.

Area forecast discussion, Dec 5, 10:23 AM EST, 2 hours 38 minutes before

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Hazardous weather outlook, Dec 5, 6:47 AM EST, 6 hours 14 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 4, 7:35 PM EST	Wind Advisory	BUF	Chautauqua, Erie	8 hr
Dec 4, 7:53 PM EST	Gale Warning	BUF		41 hr
Dec 5, 3:49 AM EST	Lakeshore Flood Warning	BUF	Jefferson, Oswego	33 hr
Dec 5, 1:01 PM EST	Lake Effect Snow Warning	BUF	Cattaraugus, Chautauqua, Erie, Jefferson, Lewis, Wyoming	68 hr

Nearby

Winter Weather Advisories in New York, 2017 Every winter weather advisory 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.