Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 1, NWS Atlanta, GA

January 25, 1990Meriwether County, Pike County, Spalding County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 25, 1990, 8:55 AM EST for Meriwether County, Pike County, Spalding County, Georgia. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jan 25, 1990, 8:55 AM EST (13:55 UTC)
Expired
Jan 25, 1990, 9:35 AM EST
In force
40 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Meriwether County, GA, Pike County, GA, Spalding 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

Athens Municipal, GA (KAHN), launched 12:00Z, 1.9 hours before the alert went out and 140 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 1990-01-25Temperature 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 1990-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.1939587897Sfc1 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
547 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KATL 251355 RRA
SVRATL
GAC255-199-231-251445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
855 AM EST THU JAN 25 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST GEORGIA
          ...SPALDING
IN WEST CENTRAL GEORGIA
          ...SOUTHEASTERN MERIWETHER...PIKE
 
AT 845 AM WEATHER SERVICE RADAR INDICATED SEVERE THUNDERSTORMS NEAR
MANCHASTER IN MERIWETHER COUNTY AND 10 MILES SOUTHWEST OF GRIFFIN.
THESE THUNDERSTORMS WERE MOVING NORTHEAST NEAR 40 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 25, 9:20 AM ESTSevere Thunderstorm WarningFFCMorgan, Newton, Walton55 min
Jan 25, 9:52 AM ESTSevere Thunderstorm WarningFFCClarke, Jackson, Oconee68 min
Jan 25, 9:52 AM ESTSevere Thunderstorm WarningFFCMorgan68 min
Jan 25, 10:01 AM ESTSevere Thunderstorm WarningFFCBibb, Crawford, Monroe59 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; the sounding from the Mesonet's radiosonde archive.