Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 7, NWS Atlanta, GA

February 10, 1990Murray County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 10, 1990, 3:07 AM EST for Murray County, Georgia. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1990, 3:07 AM EST (08:07 UTC)
Expired
Feb 10, 1990, 4:00 AM EST
In force
53 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Murray 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 00:00Z, 8.1 hours before the alert went out and 162 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 00:00Z on 1990-02-10Temperature 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 00:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -56 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-56 m²/s²
0-3 km storm-relative helicity
158 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 100807
SVRATL
GAC213-100900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
307 AM EST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHWEST GEORGIA
          ...MURRAY
 
AT 305 AM RADAR SHOWED A SEVERE THUNDERSTORM NEAR CHATSWORTH MOVING
NORTHEAST AT 45 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
Feb 9, 8:17 PM ESTFlash Flood WarningFFCDeKalb, Fulton118 min
Feb 10, 3:25 AM ESTSevere Thunderstorm WarningFFCGilmer50 min
Feb 10, 4:55 AM ESTSevere Thunderstorm WarningFFCHaralson, Polk65 min
Feb 10, 4:55 AM ESTSevere Thunderstorm WarningFFCHeard, Troup65 min
Feb 10, 4:55 AM ESTSevere Thunderstorm WarningFFCCarroll65 min
Feb 10, 5:18 AM ESTSevere Thunderstorm WarningFFCCoweta, Fulton57 min
Feb 10, 5:18 AM ESTSevere Thunderstorm WarningFFCDouglas, Paulding57 min
Feb 10, 5:38 AM ESTSevere Thunderstorm WarningFFCClayton, Fayette, Fulton67 min
Feb 10, 5:38 AM ESTSevere Thunderstorm WarningFFCMeriwether67 min
Feb 10, 5:38 AM ESTSevere Thunderstorm WarningFFCCobb67 min
Feb 10, 5:55 AM ESTSevere Thunderstorm WarningFFCForsyth, Gwinnett65 min
Feb 10, 5:55 AM ESTSevere Thunderstorm WarningFFCDeKalb, Henry65 min
Feb 10, 5:55 AM ESTSevere Thunderstorm WarningFFCPike, Spalding65 min
Feb 10, 5:55 AM ESTSevere Thunderstorm WarningFFCUpson65 min
Feb 10, 6:06 AM ESTSevere Thunderstorm WarningFFCHall69 min
Feb 10, 6:14 AM ESTSevere Thunderstorm WarningFFCButts, Lamar46 min
Feb 10, 6:19 AM ESTSevere Thunderstorm WarningFFCBanks, Franklin, Madison, Stephens116 min
Feb 10, 6:19 AM ESTSevere Thunderstorm WarningFFCBarrow, Clarke, Hall, Jackson, Oconee, Walton116 min
Feb 10, 6:19 AM ESTSevere Thunderstorm WarningFFCMorgan, Newton116 min
Feb 10, 6:20 AM ESTSevere Thunderstorm WarningFFCJasper, Monroe40 min
Feb 10, 6:20 AM ESTSevere Thunderstorm WarningFFCCrawford40 min
Feb 10, 6:44 AM ESTSevere Thunderstorm WarningFFCBibb, Peach31 min
Feb 10, 6:44 AM ESTSevere Thunderstorm WarningFFCJones, Putnam31 min
Feb 10, 6:51 AM ESTSevere Thunderstorm WarningFFCGreene, Oglethorpe, Taliaferro2 hr
Feb 10, 6:51 AM ESTSevere Thunderstorm WarningFFCElbert, Hart2 hr
Feb 10, 6:54 AM ESTSevere Thunderstorm WarningFFCBleckley, Dooly, Houston, Pulaski36 min
Feb 10, 6:54 AM ESTSevere Thunderstorm WarningFFCBaldwin, Twiggs, Wilkinson36 min
Feb 10, 7:33 AM ESTSevere Thunderstorm WarningFFCDodge, Laurens, Wilcox42 min
Feb 10, 7:33 AM ESTSevere Thunderstorm WarningFFCBen Hill, Turner42 min
Feb 10, 7:52 AM ESTSevere Thunderstorm WarningFFCIrwin53 min
Feb 10, 7:55 AM ESTSevere Thunderstorm WarningFFCBurke, Jefferson, Richmond65 min
Feb 10, 7:55 AM ESTSevere Thunderstorm WarningFFCColumbia, McDuffie65 min
Feb 10, 8:10 AM ESTSevere Thunderstorm WarningFFCTelfair, Treutlen, Wheeler50 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.