Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 301, NWS Tallahassee, FL

December 9, 20094 counties in Georgia; Henry County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 9, 2009, 5:49 AM EST for 4 counties in Georgia; Henry County, Alabama. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 9, 2009, 5:49 AM EST (10:49 UTC)
Expired: Dec 9, 2009, 6:15 AM EST
In force: 26 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Henry County, AL, Calhoun County, GA, Clay County, GA, Early County, GA, Randolph County, GA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 9, 4:32 AM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.8 hours before the alert went out and 206 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: 449 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 9, 3:23 AM EST, 2 hours 26 minutes earlier.

Area forecast discussion, Dec 9, 3:23 AM EST, 2 hours 26 minutes before

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Hazardous weather outlook, Dec 8, 10:46 PM EST, 7 hours 3 minutes before

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In the hours before

Special weather statement, Dec 9, 4:10 AM EST, 1 hour 39 minutes before

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Special weather statement, Dec 9, 5:16 AM EST, 33 minutes before

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The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 9, 4:05 AM EST	Fire Weather Watch	TAE	Bay, Calhoun, Holmes, Jackson, Walton, Washington	23 hr
Dec 9, 10:26 AM EST	Special Marine Warning	TAE		49 min
Dec 9, 11:23 AM EST	Severe Thunderstorm Warning	TAE	Gadsden	22 min
Dec 9, 11:58 AM EST	Tornado Warning	TAE	Leon	32 min
Dec 9, 12:28 PM EST	Tornado Warning	TAE	Jefferson, Leon	47 min
Dec 9, 5:43 AM EST	Severe Thunderstorm Warning	TAE	Clay, Quitman, Randolph	17 min
Dec 9, 7:04 AM EST	Severe Thunderstorm Warning	TAE	Lee, Worth	41 min
Dec 9, 7:28 AM EST	Severe Thunderstorm Warning	TAE	Calhoun, Clay, Early, Randolph, Terrell	32 min
Dec 9, 7:48 AM EST	Severe Thunderstorm Warning	TAE	Dougherty, Lee, Terrell	42 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2009 Severe Thunderstorm Warnings in Alabama, 2009 Every severe thunderstorm warning 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.