Alert archive / Nebraska / Wind Chill Advisories in 2009

Wind Chill Advisory 2, NWS Hastings, NE

December 8, 200924 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this wind chill advisory at Dec 8, 2009, 9:58 PM CST for 24 counties in Nebraska; 6 counties in Kansas. It took effect at Dec 9, 2009, 3:33 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Dec 8, 2009, 9:58 PM CST (03:58 UTC)
In effect from: Dec 9, 2009, 3:33 AM CST
Expired: Dec 9, 2009, 11:00 AM CST
In force: 7 hr
Issued by: NWS Hastings, NE

All 30 counties

Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 27 km from the middle of the area, began a volume at 03:55 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

Omaha, NE (KOAX), launched 00:00Z, 4.0 hours before the alert went out and 210 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: 574 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 294 m²/s²
0-3 km storm-relative helicity: 277 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 wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this wind chill advisory went out at Dec 8, 3:18 PM CST, 6 hours 40 minutes earlier.

Area forecast discussion, Dec 8, 3:18 PM CST, 6 hours 40 minutes before

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Hazardous weather outlook, Dec 8, 3:24 PM CST, 6 hours 34 minutes before

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In the hours before

Local storm report, Dec 8, 4:39 PM CST, 5 hours 19 minutes before

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Local storm report, Dec 8, 5:21 PM CST, 4 hours 37 minutes before

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Local storm report, Dec 8, 5:38 PM CST, 4 hours 20 minutes before

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The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 9, 3:41 PM CST	Wind Chill Advisory	GID	Adams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more	18 hr

Nearby

Wind Chill Advisories in Nebraska, 2009 Wind Chill Advisories in Kansas, 2009 Every wind chill advisory 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.