Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 145, NWS Tallahassee, FL

July 12, 2013Baker County, Dougherty County, Mitchell County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 12, 2013, 5:56 PM EDT for Baker County, Dougherty County, Mitchell County, Georgia. It was in force for 34 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
Jul 12, 2013, 5:56 PM EDT (21:56 UTC)
Expired
Jul 12, 2013, 6:30 PM EDT
In force
34 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Baker County, GA, Dougherty County, GA, Mitchell County, GA

The radar

The Tallahassee radar (KTLH), 107 km from the middle of the area, began a volume at 21:57 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 224 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2013-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1881 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2013-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1881 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
43 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 Jul 12, 2:43 PM EDT, 3 hours 13 minutes earlier.

Area forecast discussion, Jul 12, 2:43 PM EDT, 3 hours 13 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 7:59 PM EDTAreal Flood WarningTAEHolmes, Jackson, Washington2 hr
Jul 12, 5:40 PM EDTAreal Flood WarningTAEWorth2 hr
Jul 12, 6:03 PM EDTAreal Flood WarningTAEBaker, Decatur, Miller117 min
Jul 12, 6:15 PM EDTAreal Flood WarningTAEColquitt, Mitchell, Worth2 hr
Jul 12, 6:33 PM EDTSpecial Weather StatementTAEMitchell42 min
Jul 12, 6:40 PM EDTSpecial Weather StatementTAEBaker50 min
Jul 12, 6:44 PM EDTSpecial Weather StatementTAEMiller, Seminole46 min
Jul 12, 6:59 PM EDTSpecial Weather StatementTAEBrooks, Thomas46 min
Jul 12, 6:28 PM EDTSpecial Weather StatementTAECoffee62 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2013Every severe thunderstorm warning in 2013

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.