Alert archive / Kentucky / Wind Chill Advisories in 2008

Wind Chill Advisory 1, NWS Louisville, KY

December 21, 200823 counties in Kentucky; 10 counties in Indiana

NWS Louisville, KY issued this wind chill advisory at Dec 21, 2008, 10:52 PM EST for 23 counties in Kentucky; 10 counties in Indiana. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Dec 21, 2008, 10:52 PM EST (03:52 UTC)
Expired: Dec 22, 2008, 9:00 AM EST
In force: 10 hr
Issued by: NWS Louisville, KY

All 33 counties

Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Anderson County, KY, Bourbon County, KY, Breckinridge County, KY, Bullitt County, KY, Clark County, KY, Fayette County, KY, Franklin County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Meade County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 47 km from the middle of the area, began a volume at 04:03 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.9 hours before the alert went out and 200 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: 1105 m above ground
0-6 km bulk shear: 133 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 130 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 Louisville, KY wrote its last area forecast discussion before this wind chill advisory went out at Dec 21, 6:30 PM EST, 4 hours 22 minutes earlier.

Area forecast discussion, Dec 21, 6:30 PM EST, 4 hours 22 minutes before

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Hazardous weather outlook, Dec 21, 7:15 PM EST, 3 hours 37 minutes before

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In the hours before

Special weather statement, Dec 21, 9:45 PM EST, 1 hour 7 minutes before

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Nearby

Wind Chill Advisories in Kentucky, 2008 Wind Chill Advisories in Indiana, 2008 Every wind chill advisory in 2008

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.