Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Tallahassee, FL

February 10, 1990Chattahoochee County, Georgia; Russell County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 10, 1990, 5:21 AM EST for Chattahoochee County, Georgia; Russell County, Alabama. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1990, 5:21 AM EST (10:21 UTC)
Expired
Feb 10, 1990, 6:30 AM EST
In force
69 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Russell County, AL, Chattahoochee County, GA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 10.4 hours before the alert went out and 217 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, Centreville/Bibb, AL at 00:00Z on 1990-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 897 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, Centreville/Bibb, AL at 00:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.19395878Sfc1 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
897 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
1.5
Supercell composite
7.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 5:21 AM ESTSevere Thunderstorm WarningTAEHarris, Muscogee, Talbot69 min
Feb 10, 5:57 AM ESTTornado WarningTAEMuscogee63 min
Feb 10, 6:06 AM ESTSevere Thunderstorm WarningTAEMarion, Schley, Stewart, Taylor69 min
Feb 10, 6:06 AM ESTSevere Thunderstorm WarningTAEMacon69 min
Feb 10, 6:37 AM ESTSevere Thunderstorm WarningTAEColquitt, Tift68 min
Feb 10, 7:04 AM ESTTornado WarningTAEMuscogee41 min
Feb 10, 7:07 AM ESTTornado WarningTAEDougherty, Lee, Worth68 min
Feb 10, 4:49 AM ESTSevere Thunderstorm WarningTAEEscambia, Santa Rosa56 min
Feb 10, 9:14 AM ESTTornado WarningTAEEscambia, Santa Rosa61 min
Feb 10, 9:32 AM ESTSevere Thunderstorm WarningTAEOkaloosa58 min
Feb 10, 10:07 AM ESTTornado WarningTAEGulf53 min
Feb 10, 10:44 AM ESTSevere Thunderstorm WarningTAEWakulla31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1990Severe Thunderstorm Warnings in Alabama, 1990Every severe thunderstorm warning in 1990

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.