Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Atlanta, GA

February 10, 1990Gilmer County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 10, 1990, 3:25 AM EST for Gilmer County, Georgia. It was in force for 50 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, 3:25 AM EST (08:25 UTC)
Expired
Feb 10, 1990, 4:15 AM EST
In force
50 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Gilmer 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, 4:22 AM ESTThunderstorm Wind 0Gilmer, 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, 8.4 hours before the alert went out and 134 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 100825
SVRATL
GAC123-100915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
325 AM EST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHWEST GEORGIA
          ...GILMER
 
AT 323 AM A SEVERE THUNDERSTORMS WAS SHOWN ON THE MURRAY AND GILMER
COUNTY LINE JUST WEST OF ELLIJAY. MOVEMENT WAS EAST AT 45 MPH.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.