Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 215, NWS Jacksonville, FL

August 14, 2007Coffee County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 14, 2007, 12:25 AM EDT for Coffee County, Georgia. It was in force for 35 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: Aug 14, 2007, 12:25 AM EDT (04:25 UTC)
Expired: Aug 14, 2007, 1:00 AM EDT
In force: 35 min
Issued by: NWS Jacksonville, FL
Area: Counties, with a storm outline in the text

County Coffee County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.4 hours before the alert went out and 255 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: 173 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 2504 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 8:18 PM EDT, 4 hours 7 minutes earlier.

Area forecast discussion, Aug 13, 8:18 PM EDT, 4 hours 7 minutes before

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In the hours before

Special weather statement, Aug 13, 11:34 PM EDT, 51 minutes before

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Special weather statement, Aug 13, 11:35 PM EDT, 50 minutes before

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Local storm report, Aug 14, 12:01 AM EDT, 24 minutes before

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Special weather statement, Aug 14, 12:16 AM EDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 11:55 PM EDT	Severe Thunderstorm Warning	JAX	Jeff Davis	50 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning 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.