Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 260, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 8, 1990, 2:27 PM EDT for DeKalb County, Henry County, Spalding County, Georgia. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Aug 8, 1990, 2:27 PM EDT (18:27 UTC)
- Expired
- Aug 8, 1990, 3:15 PM EDT
- In force
- 48 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties DeKalb County, GA, Henry 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, 6.5 hours before the alert went out and 99 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.
- Mixed-layer CAPE
- 533 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 081827 SVRATL GAC089-151-255-081915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 227 PM EDT WED AUG 8 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...DEKALB COUNTY...SOUTHERN HENRY COUNTY...SPALDING COUNTY AT 226 PM...SEVERE THUNDERSTORMS WERE SHOWN JUST EAST OF GRIFFIN AND JUST EAST OF ATLANTA HARTSFIELD AIRPORT. MOVEMENT WAS NORTHEAST AT 10 MPH. THE THUNDERSTORM NEAR ATLANTA PRODUCED WIND GUSTS TO 55 MPH DURING THE PAST 30 MINUTES. 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 8, 1:46 PM EDT, 41 minutes before
GAZ004-081845- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 145 PM EDT WED AUG 8 1990 ...SEVERE THUNDERSTORM WATCH FOR MORGAN...GREENE...AND TALIAFERRO COUNTIES OF NORTHEAST GEORGIA UNTIL 8 PM EDT... AT 1:00 PM EDT A THUNDERSTORM WITH VERY HEAVY RAIN WAS INDICATED OVER MADISON GEORGIA MOVING NORTHEAST AT 12 MILES AN HOUR. PERSONS IN MORGAN COUNTY SHOULD BE ON THE ALERT FOR THREATENING WEATHER CONDITIONS FOR THE NEXT HOUR AS THIS STORM MOVES THROUGH THEIR AREA. VERY HEAVY RAIN...DANGEROUS CLOUD TO GROUND LIGHTNING...GUSTY SURFACE WINDS AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
Special weather statement, Aug 8, 1:51 PM EDT, 36 minutes before
GAZ004-081845- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 145 PM EDT WED AUG 8 1990 ...SEVERE THUNDERSTORM WATCH FOR MORGAN...GREENE...AND TALIAFERRO COUNTIES OF NORTHEAST GEORGIA UNTIL 8 PM EDT... AT 1:45 PM EDT A THUNDERSTORM WITH VERY HEAVY RAIN WAS INDICATED OVER MADISON GEORGIA MOVING NORTHEAST AT 12 MILES AN HOUR. PERSONS IN MORGAN COUNTY SHOULD BE ON THE ALERT FOR THREATENING WEATHER CONDITIONS FOR THE NEXT HOUR AS THIS STORM MOVES THROUGH THEIR AREA. VERY HEAVY RAIN...DANGEROUS CLOUD TO GROUND LIGHTNING...GUSTY SURFACE WINDS AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
Special weather statement, Aug 8, 1:55 PM EDT, 32 minutes before
GAZ001-003-081900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 155 PM EDT TUE AUG 08 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF CENTRAL AND SOUTH GEORGIA... AT 145 PM...WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS NEAR ATLANTA...ROME...JAPSER IN PICKENS COUNTY...FAYETTEVILLE...AND WOODBURY IN MERIWETHER COUNTY. MOVEMENT OF ALL STORMS WAS NORTHEAST AT 10 MPH. HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS...AND POSSIBLY SOME HAIL CAN BE EXPECTED WITH THESE STORMS. EVEN THOUGH NORTH GEORGIA IS NOT CURRENTLY UNDER A SEVERE WEATHER WATCH... PERSONS SHOULD STILL REMAIN ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE QUICK ACTIONS IF NECESSARY. THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP ACROSS NORTH GEORGIA THIS AFTERNOON. LISTEN TO NOAA WEATHER RADIO...OR LOCAL TV AND RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Local storm report, Aug 8, 2:14 PM EDT, 13 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 212PM EDT WED AUG 8, 1990 COUNTY........ MORGAN SOURCE........ COOP OBS TIME..........1404 EDT LOCATION...... 6 EAST OF GODFREY ...SOUTHERN MORGAN COUNTY... TYPE STORM.... THUNDERSTORM ...WINDS EST 50 MPH... HAIL.......... MARBLE SIZE DAMAGE........ NONE KNOWN INJURIES...... NONE KNOWN
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 1:57 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 63 min |
| Aug 8, 2:29 PM EDT | Severe Thunderstorm Warning | FFC | Greene | 61 min |
| Aug 8, 3:05 PM EDT | Severe Thunderstorm Warning | FFC | Butts | 40 min |
| Aug 8, 3:08 PM EDT | Severe Thunderstorm Warning | FFC | Houston | 67 min |
| Aug 8, 4:21 PM EDT | Severe Thunderstorm Warning | FFC | Cobb, Fulton | 54 min |
| Aug 8, 4:42 PM EDT | Severe Thunderstorm Warning | FFC | Laurens | 63 min |
| Aug 8, 4:55 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Gwinnett | 50 min |
| Aug 8, 5:48 PM EDT | Severe Thunderstorm Warning | FFC | Treutlen | 57 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.