Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 347, NWS Atlanta, GA

September 10, 1990Twiggs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 10, 1990, 2:44 PM EDT for Twiggs County, Georgia. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 10, 1990, 2:44 PM EDT (18:44 UTC)
Expired
Sep 10, 1990, 3:30 PM EDT
In force
46 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Twiggs County, GA

The radar

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

What was reported inside it

TimeReportWhereRemark
Sep 10, 2:55 PM EDTHail 0.75Twiggs, GA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 6.7 hours before the alert went out and 143 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, Athens Municipal, GA at 12:00Z on 1990-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Athens Municipal, GA at 12:00Z on 1990-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
3 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

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 Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 10, 1:14 AM EDTSevere Thunderstorm WarningFFCFannin46 min
Sep 10, 4:42 AM EDTSevere Thunderstorm WarningFFCFulton48 min
Sep 10, 3:06 PM EDTSevere Thunderstorm WarningFFCJones69 min
Sep 10, 3:13 PM EDTSevere Thunderstorm WarningFFCBibb, Houston62 min
Sep 10, 5:26 PM EDTSevere Thunderstorm WarningFFCCherokee34 min
Sep 10, 5:41 PM EDTSevere Thunderstorm WarningFFCFulton34 min
Sep 10, 5:52 PM EDTSevere Thunderstorm WarningFFCDeKalb38 min
Sep 10, 6:03 PM EDTSevere Thunderstorm WarningFFCClayton27 min
Sep 10, 6:28 PM EDTSevere Thunderstorm WarningFFCColumbia, Richmond47 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.