Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 294, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 21, 1990, 5:37 PM EDT for Polk County, Georgia. It was in force for 53 min. 2 reports 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
- Aug 21, 1990, 5:37 PM EDT (21:37 UTC)
- Expired
- Aug 21, 1990, 6:30 PM EDT
- In force
- 53 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Polk 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 21, 5:45 PM EDT | Thunderstorm Wind 0 | Polk, GA | |
| Aug 21, 6:05 PM EDT | Thunderstorm Wind 0 | Polk, 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 12:00Z, 9.6 hours before the alert went out and 174 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
- 1505 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 212138 SVRATL GAC055-233-212230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 537 PM EDT TUE AUG 21 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...CHATTOOGA COUNTY...POLK COUNTY AT 530 PM EDT RADAR SHOWED A SEVERE THUNDERSTORM IN THE WESTERN PORTION OF CHATOOGA COUNTY NEAR MENLO. WGTA RADIO IN SUMMERVILLE REPORTED DIME TO PING PONG SIZE HAIL AND HIGH WINDS IN THE MENLO AREA AT 525 PM. THIS STORM WAS DRIFTING EAST AT 5 MPH. AT 530 PM EDT RADAR ALSO SHOWED A SEVERE THUNDERSTORM IN WESTERN POLK COUNTY JUST WEST OF CEDARTOWN. THIS STORM MAY BE PRODUCING LARGE HAIL. 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 YLOWEST 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 21, 2:46 PM EDT, 2 hours 51 minutes before
GAZ002-004-211930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 245 PM EDT TUE AUG 21 1990 SEVERE THUNDERSTORM WATCH NUMBER 667 IS IN EFFECT UNTIL 1000 PM EDT FOR PART OF NORTHEAST GEORGIA. THIS WATCH INCLUDES THE COUNTIES OF BANKS...HALL...RABUN...WHITE...ELBERT...HART...STEPHENS FRANKLIN...LUMPKIN...TOWNS...HABERSHAM...MADISON AND UNION. SCATTERED SHOWERS AND THUNDERSTORMS WERE INCREASING OVER NORTH AND CENTRAL GEORGIA. THIS ACTIVITY EXTENDED FROM EXTREME NORTH GEORGIA INTO THE MOUNTAINS OF EASTERN TENNESSEE AND WESTERN NORTH CAROLINA. ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS LOCATED ALONG AND EAST OF A LINE FROM COLUMBUS TO ATHERNS GE`ORGIA AND TO GREENVILLE SOUTH CAROLINA. LITTLE MOVEMENT WAS INDICATED.
Special weather statement, Aug 21, 3:00 PM EDT, 2 hours 37 minutes before
GAZ001-003-212100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 301 PM EDT TUE AUG 21 1990 ... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PART OF NORTHERN GEORGIA UNTIL 10 PM ... AT 250 PM...WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS DEVELOPING RAPIDLY IN NORTHERN AND CENTRAL GEORGIA. THE STRONGEST STORMS WERE LOCATED BETWEEN CHATTNOOGA AND ROME...JUST WEST OF ROCKMARIN POLK COUNTY...NEAR JASPER IN PICKENS COUNTY AND NEAR GRIFFIN IN SPALDING COUNTY. ALL OF THE STORMS WERE DRIFTING SLOWLY NORTHEAST. PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT FOR THUNDERSTORMS AND BE PREPARED TO TAKE QUICK ACTION IF NECESSARY. DUE TO VERY WARM TEMPERATURES AND THE UNSTABLE ATMOSPHERE..THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON AND EVENING IN THIS AREA OF THE STATE. VERY HEAVY RAIN...FREQUENT AND DANGEROUS CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND EVEN SOME HAIL CAN BE EXPECTED WITlH THE STRONGER STORMS. PERSONS ARE ADVISED TO STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV AND RADIO STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Aug 21, 3:34 PM EDT, 2 hours 3 minutes before
GAZ002-004-212030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 330 PM EDT TUE AUG 21 1990 SEVERE THUNDERSTORM WATCH NUMBER 667 IS IN EFFECT UNTIL 1000 PM EDT FOR PART OF NORTHEAST GEORGIA. THIS WATCH INCLUDES THE COUNTIES OF BANKS...HALL...RABUN...WHITE...ELBERT...HART...STEPHENS FRANKLIN...LUMPKIN...TOWNS...HABERSHAM...MADISON AND UNION. STRONG THUNDERSTORMS WERE INDICATED OVER EXTREME NORTHWEST GEORGIA... NEAR ELBERTON GEORGIA...AND FROM MACON TO MILLEDGEVILLE GEORGIA. ELSEWHERE...SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER NORTHERN AND CENTRAL GEORGIA EXTENDING INTO THE ADJACENT AREAS OF EASTERN ALABAMA...EASTERN TENNESSEE AND THE WESTERN CAROLINAS. LITTLE MOVEMENT WAS INDICATED.
Special weather statement, Aug 21, 5:33 PM EDT, 4 minutes before
GAZ001-003-212100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 530 PM EDT TUE AUG 21 1990 ... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF NORTHERN GEORGIA UNTIL 10 PM ... AT 530 PM...WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS SCATTERED OVER NORTHERN AND CENTRAL GEORGIA. THE STRONGEST STORMS WERE LOCATED IN NORTHWEST GEORGIA...NEAR THE DADE-WALKER COUNTY LINE...NEAR THE ALABAMA-GEORGIA BORDER IN CHATTOOGA COUNTY...AND WEST OF CEDARTOWN IN POLK COUNTY. LITTLE MOVEMENT IS INDICATED IN THE THUNDERSTORMS. PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT FOR THUNDERSTORMS AND BE PREPARED TO TAKE QUICK ACTION IF NECESSARY. DUE TO VERY WARM TEMPERATURES AND THE UNSTABLE ATMOSPHERE...THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON AND EVENING ACROSS MUCH OF NORTH GEORGIA. VERY HEAVY RAIN...FREQUENT AND DANGEROUS CLOUD TO GROUND LIGHTNING... GUSTY WINDS...AND EVEN SOME HAIL CAN BE EXPECTED TWITH THE STRONGER STORMS. < PERSONS ARE ADVISED TO STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV AND RADIO STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 3:17 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa | 43 min |
| Aug 21, 3:26 PM EDT | Severe Thunderstorm Warning | FFC | Carroll | 42 min |
| Aug 21, 4:48 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga | 42 min |
| Aug 21, 5:13 PM EDT | Severe Thunderstorm Warning | FFC | Walker | 47 min |
| Aug 21, 5:37 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga | 53 min |
| Aug 21, 5:55 PM EDT | Severe Thunderstorm Warning | FFC | Floyd | 50 min |
| Aug 21, 6:13 PM EDT | Severe Thunderstorm Warning | FFC | Jefferson | 47 min |
| Aug 21, 6:18 PM EDT | Severe Thunderstorm Warning | FFC | Carroll | 42 min |
| Aug 21, 6:33 PM EDT | Severe Thunderstorm Warning | FFC | Bartow | 27 min |
| Aug 21, 6:43 PM EDT | Severe Thunderstorm Warning | FFC | Clayton, Fayette | 47 min |
| Aug 21, 6:53 PM EDT | Severe Thunderstorm Warning | FFC | Gwinnett | 52 min |
| Aug 21, 6:53 PM EDT | Severe Thunderstorm Warning | FFC | Heard | 52 min |
| Aug 21, 7:01 PM EDT | Severe Thunderstorm Warning | FFC | Carroll | 44 min |
| Aug 21, 7:09 PM EDT | Severe Thunderstorm Warning | FFC | Banks, Habersham, Hall, Jackson | 66 min |
| Aug 21, 7:22 PM EDT | Severe Thunderstorm Warning | FFC | Troup | 53 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.