Alert archive / Georgia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 171, NWS Tallahassee, FL

June 28, 2020Quitman County, Randolph County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 28, 2020, 8:12 PM EDT for Quitman County, Randolph County, Georgia. It was in force for 19 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
Jun 28, 2020, 8:12 PM EDT (00:12 UTC)
Expired
Jun 28, 2020, 8:31 PM EDT
In force
19 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Quitman County, GA, Randolph County, GA

The radar

The Ft Rucker radar (KEOX), 67 km from the middle of the area, began a volume at 00:17 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 00:00Z, 0.2 hours before the alert went out and 177 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 00:00Z on 2020-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 868 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2020-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 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
868 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1482 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 9:14 AM EDTSpecial Marine WarningTAE46 min
Jun 29, 9:18 AM EDTSpecial Marine WarningTAE42 min
Jun 29, 12:56 PM EDTSpecial Weather StatementTAEWalton49 min
Jun 29, 1:02 PM EDTSpecial Weather StatementTAEFranklin43 min
Jun 29, 1:45 PM EDTSpecial Weather StatementTAEWashington45 min
Jun 29, 2:17 PM EDTSpecial Weather StatementTAELeon43 min
Jun 29, 3:19 PM EDTSpecial Weather StatementTAEJefferson41 min
Jun 29, 4:00 PM EDTSpecial Weather StatementTAEWakulla45 min
Jun 29, 4:44 PM EDTSevere Thunderstorm WarningTAEFranklin, Wakulla34 min
Jun 29, 4:50 PM EDTSpecial Marine WarningTAE55 min
Jun 29, 2:22 PM EDTSpecial Weather StatementTAEBrooks38 min
Jun 29, 7:06 PM EDTSpecial Weather StatementTAEHenry39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2020Every severe thunderstorm warning in 2020

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.