Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 21, NWS Atlanta, GA

February 10, 1990Upson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 10, 1990, 5:55 AM EST for Upson County, Georgia. It was in force for 65 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
Feb 10, 1990, 5:55 AM EST (10:55 UTC)
Expired
Feb 10, 1990, 7:00 AM EST
In force
65 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Upson 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
Feb 10, 6:00 AM ESTThunderstorm Wind 0Upson, 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 00:00Z, 10.9 hours before the alert went out and 151 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°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 101055
SVRATL
GAC089-117-135-151-255-231-293-101200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
555 AM EST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST GEORGIA
          ...DEKALB...FORSYTH...GWINNETT...HENRY...SPALDING
IN WEST CENTRAL GEORGIA
          ...PIKE...UPSON
 
AT 555 AM A LINE OF SEVERE THUNDERSTORMS WAS LOCATED FROM CANTON TO
ATLANTA HARTSFIELD AIRPORT TO WOODBURY. MOVEMENT WAS EAST AT 55 MPH.
THIS LINE HAS PRODUCED WIND GUSTS TO 65 MPH AT ATLANTA AIRPORT.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, 3:07 AM ESTSevere Thunderstorm WarningFFCMurray53 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, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.