Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 338, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 30, 1990, 6:50 PM EDT for Coweta County, Heard County, Georgia. It was in force for 55 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
- Aug 30, 1990, 6:50 PM EDT (22:50 UTC)
- Expired
- Aug 30, 1990, 7:45 PM EDT
- In force
- 55 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Coweta County, GA, Heard 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 30, 7:15 PM EDT | Hail 1.75 | Heard, 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, 10.8 hours before the alert went out and 167 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
- 407 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1326 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 54 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 302253 SVRATL GAC077-149-302345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 650 PM EDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...WESTERN COWETA COUNTY...HEARD COUNTY RADAR INDICATED A SEVERE THUNDERSTORM JUST EAST OF FRANKLIN GEORGIA AT 647 PM EDT MOVING EAST AT 10 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 BU SINESS. 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 30, 6:01 PM EDT, 49 minutes before
GAZ002-004-302200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 600 PM EDT THU AUG 30 1990 ...THUNDERSTORM WITH VERY HEAVY RAIN OVER NOETHEAST GEORGIA... AT 6 PM EDT A THUNDERSTORM WITH VERY HEAVY RAINFALL WAS INDICATED OVER JACKSON COUNTY NEAR COMMERCE GEORGIA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR. PEOPLE IN JACKSON AND MADISON COUNTIES OF NORTHEAST GEORGIA SHOULD REMAIN ALERT FOR BRIEF HEAVY RAIN...STRONG GUSTY SURFACE WINDS... FREQUENT CLOUDY TO GROUND LIGHTNING...POSSIBLE SMALL HAIL AND FLOODING OF LOW LYING AREAS AND ROADWAYS FOR THE NEXT TWO HOURS.
Special weather statement, Aug 30, 6:11 PM EDT, 39 minutes before
GAZ003-302330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 610 PM EDT THU AUG 30 1990 ...THUNDERSTORMS DEVELOPING OVER EASTERN PORTIONS OF METRO ATLANTA... AT 605 PM THE STRONG THUNDERSTORM THAT WAS LOCATED IN THE EXTREME SOUTHERN PART OF DEKALB COUNTY HAD WEAKENED. HOWEVER...OTHER STORMS WERE DEVELOPING IN DEKALB AND GWINNETT COUNTIES FROM WEST OF LITHONIA TO AROUND SNELLVILLE. DANGEROUS LIGHTNING...GUSTY WINDS AND LOCALLY HEAVY RAINS ACCOMPANY THESE STORMS. SMALL HAIL IS ALSO A POSSIBILITY. IT APPEARS SCATTERED STRONG STORMS MAY CONTINUE TO DEVELOP...MAINLY EAST AND NORTHEAST OF ATLANTA OVER THE NEXT COUPLE OF HOURS...SO PEOPLE IN THOSE AREAS ARE URGED TO STAY ALERT AND TAKE SHELTER AS STORMS DEVELOP AND MOVE EAST.
Special weather statement, Aug 30, 6:28 PM EDT, 22 minutes before
GAZ002-004-302200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 625 PM EDT THU AUG 30 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN OVER NOETHEAST GEORGIA... AT 620 PM EDT A THUNDERSTORM WITH VERY HEAVY RAINFALL WAS INDICATED OVER SOUTHERN JACKSON COUNTY NEAR ARCADE GEORGIA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE ENTERING CLARKE COUNTY WITHIN THE NEXT HOUR. PERSONS IN CLARKE...MADISON...OGLETHORPE AND OCONEE COUNTIES OF NORTHEAST GEORGIA SHOULD REMAIN ALERT FOR BRIEF HEAVY RAINFALL... FREQUENT CLOUDY TO GROUND LIGHTNING...POSSIBLE SMALL HAIL AND FLOODING OF LOW LYING AREAS AND ROADWAYS FOR THE NEXT TWO HOURS.
Special weather statement, Aug 30, 6:28 PM EDT, 22 minutes before
GAZ008-011-ALZ012-302330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 625 PM EDT THU AUG 30 1990 THE SEVERE THUNDERSTORM WATCH NUMBER 709 IS NO LONGER IN EFFECT FOR ALL OF SOUTHWEST GEORGIA AND THE FOLLOWING COUNTIES IN SOUTH CENTRAL GEORGIA...WORTH..TIFT..COLQUITT AND COOK. JUST A FEW THUNDERSHOWERS IN MOSTLY LIGHT TO MODERATE RAIN WAS OCCURRING IN SOUTHWEST INTO SOUTH CENTRAL GEORGIA. HOWEVER A STRONG THUNDERSTORM CONTINUES IN EAST CENTRAL ALABAMA. THIS STORM WAS JUST 7 MILES WEST OF EUFAULA ALABAMA MOVING EAST AT 20 MILES AN HOUR. THIS STORM WILL BE MOVING INTO QUITMAN AND RANDOLPH COUNTIES IN WEST CENTRAL GEORGIA DURING THE NEXT HOUR. STRONG GUSTY WINDS.. HEAVY RAIN AND DANGEROUS LIGHTNING WILL ACCOMPANY THIS STORM. MOST OF THIS STRONG ACTIVITY IS EXPECTED TO DECREASE AFTER SUNSET. LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Aug 30, 6:37 PM EDT, 13 minutes before
GAZ002-004-302200- SPECIAL WEATHER STATEMENT ...CORRECTION TO TEXT... NATIONAL WEATHER SERVICE ATHENS GA 625 PM EDT THU AUG 30 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN OVER NORTHEAST GEORGIA... AT 620 PM EDT A THUNDERSTORM WITH VERY HEAVY RAINFALL WAS INDICATED OVER SOUTHERN JACKSON COUNTY NEAR ARCADE GEORGIA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE ENTERING CLARKE COUNTY WITHIN THE NEXT HOUR. PERSONS IN CLARKE...MADISON...OGLETHORPE AND OCONEE COUNTIES OF NORTHEAST GEORGIA SHOULD REMAIN ALERT FOR BRIEF HEAVY RAINFALL... FREQUENT CLOUDY TO GROUND LIGHTNING...POSSIBLE SMALL...STRONG GUSTY WINDS AND FLOODING OF LOW LYING AREAS AND ROADWAYS FOR THE NEXT TWO HOURS.
Local storm report, Aug 30, 6:40 PM EDT, 10 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 640 PM EDT THU AUG 30 1990 COUNTY........ JACKSON SOURCE........ JACKSON COUNTY SHERIFF DEPARTMENT TIME.......... 545 PM EDT (2145Z) LOCATION...... SOUTH OF JEFFERSON TYPE STORM.... SEVERE THUNDERSTORM HAIL.......... PEA SIZE HAIL DAMAGE........ NUMEROUS TREES BLOWN DOWN INJURIES...... NONE KNOWN
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 8:57 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Rockdale | 48 min |
| Aug 29, 9:48 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 42 min |
| Aug 29, 10:18 PM EDT | Severe Thunderstorm Warning | FFC | Putnam | 42 min |
| Aug 30, 1:34 AM EDT | Severe Thunderstorm Warning | FFC | Emanuel, Johnson | 41 min |
| Aug 30, 1:42 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 48 min |
| Aug 30, 1:51 PM EDT | Severe Thunderstorm Warning | FFC | Crisp | 69 min |
| Aug 30, 2:12 PM EDT | Severe Thunderstorm Warning | FFC | Baldwin | 63 min |
| Aug 30, 4:58 PM EDT | Severe Thunderstorm Warning | FFC | Hall, Jackson | 62 min |
| Aug 30, 7:46 PM EDT | Severe Thunderstorm Warning | FFC | Heard | 29 min |
| Aug 30, 7:49 PM EDT | Severe Thunderstorm Warning | FFC | Crawford | 41 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.