Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 240, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 1990, 4:10 PM EDT for Henry 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
- Jul 23, 1990, 4:10 PM EDT (20:10 UTC)
- Expired
- Jul 23, 1990, 5:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Henry 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 |
|---|---|---|---|
| Jul 23, 4:30 PM EDT | Thunderstorm Wind 0 | Henry, 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, 8.2 hours before the alert went out and 96 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
- 1687 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 3 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 232011 SVRATL GAC151-232100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 410 PM EDT MON JUL 23 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...SOUTHERN HENRY COUNTY AT 408 PM A SEVERE THUNDERSTORM WAS SHOWN JUST SOUTH OF MCDONOUGH MOVING EAST AT 25 MPH. THIS SAME STORM HAS CAUSED POWER OUTAGES IN BUTTS COUNTY ALONG INTERSTATE 75. 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 OUTSIDE5 SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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
Local storm report, Jul 23, 10:32 AM EDT, 5 hours 38 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 1030 AM EDT MON JUL 23 1990 COUNTY........ STEPHENS SOURCE........ DUKE ELC. TIME.......... 2145 EDT JULY 22, 1990 LOCATION...... NORTH STEPHENS COUNTY NEAR COOL SPRINGS TYPE STORM.... SEVERE THUNDERSTORM HAIL.......... NONE REPORTED DAMAGE........ TREES AND POWER LINES DOWN. INJURIES...... NONE
Special weather statement, Jul 23, 1:36 PM EDT, 2 hours 34 minutes before
GAZ001-003-231930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 135 PM EDT MON JUL 23 1990 ...SCATTERED THUNDERSTORMS DEVELOPING OVER NORTHWEST GEORGIA... THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER PARTS OF NORTHWEST GEORGIA EARLY THIS AFTERNOON. A 125 PM RADAR SHOWED SCATTERED STRONG THUNDERST OVER THE METROPOLITAN ATLANTA AREA AND ALSO FROM THE JACKSON AND FORSYTH AREAS WESTWARD TO THE LA GRANGE AND COLUMBUS VICINITIES. THESE THUNDERSTORMS WERE MOVING EAST AT ABOUT 15 MILES AN HOUR. A THUNDERSTORM AT THE ATLANTA HARTSFIELD AIRPORT PRODUCED A 40 MILE AN HOUR WIND GUST DURING THE PAST 15 MINUTES. SCATTERED THUNDERSTORMS SHOULD CONTINUE TO DEVELOPE ACROSS NORTHWEST GEORGIA THROUGH THE REST OF THE AFTERNOON. THE STRONGER STORMS WILL LIKELY PRODUCE HEAVY RAIN AND INTENSE CLOUD TO GROUND LIGHTNING. STRONG GUSTY WINDS AND SOME HAIL ARE ALSO A POSSIBILITY. PEOPLE IN NORTHWEST GEORGIA SHOULD BE ON THE LOOKOUT FOR THESE STORMS AND TAKE APPROPRIATE PRECAUTIONS.
Special weather statement, Jul 23, 1:50 PM EDT, 2 hours 20 minutes before
GAZ005-ALZ011-231845- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 149 PM EDT MON JUL 23 1990 AT 1:45 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED SCATTERED THUNDERSTORMS DEVELOPING OVER EAST CENTRAL ALABAMA AND WEST CENTRAL GEORGIA. A THUNDERSTORM OVER LEE COUNTY IN ALABAMA WILL BE MOVING INTO THE VICINITY OF COLUMBUS GEORGIA WITHIN THE NEXT HOUR. ALL ACTIVITY WAS MOVING EAST AT 20 MILES AN HOUR. THESE STORMS MAY CONTAIN HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR LATER STATEMENTS OR WARNINGS.
Special weather statement, Jul 23, 3:16 PM EDT, 54 minutes before
GAZ006-008-009-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 315 PM EDT MON JUL 23 1990 ......THUNDERSTORMS MOVING INTO CENTRAL GEORGIA..... AT 310 PM WEATHER RADAR IN MACON SHOWED STRONG THUNDERSTORMS MOVING ACROSS CENTRAL GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED IN NORTH OF MONTICELLO IN JASPER COUNTY AND NEAR MILLEDGEVILLE IN BALDWIN COUNTY. MOVEMENT WAS EAST AT 20 MPH. HEAVY RAINFALL..GUSTY WINDS..DANGEROUSI CLOUD TO GROUND LIGHTNING AND HAIL MAY ACCOMPANY THESE THUNDERSTORMS THIS AFTERNOON. IF YOU ARE IN OR NEAR THE PATH OF THE THUNDERSTORMS MOVE INDOORS UNTIL THE STORMS PASS. REMEMBER LIGHTNING IS THE UNDER-RATED KILLER IN THUNDERSTORMS.
Special weather statement, Jul 23, 3:26 PM EDT, 44 minutes before
GAZ001-003-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 330 PM EDT MON JUL 23 1990 AT 315 PM...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM NEAR ROME TO TALLAPOOSA IN HARALSON COUNTY TO NEAR BIRMINGHAM ALABAMA. THE STRONGEST STORMS WERE LOCATED JUST NORTHWEST OF CARTERSVILLE AND NEAR TALLAPOOSA. ELSEWHERE...STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF ATLANTA AND NEAR GRIFFIN AND WOODBURY. MOVEMEMT OF ALL STORMS WAS EAST AT 25 MPH. SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS NORTHWEST GEORGIA THROUGH THE REST OF THE AFTERNOON. THIS COULD POSSIBLY CREATE RUSH HOUR PROBLEMS...AS HEAVY RAIN REDUCING VISIBILITIES TO NEAR ZERO... STRONG GUSTY WINDS^...FREQUENT CLOUD TO GROUND LIGHTNING...AND POSSIBLY SOME HAIL WILL OCCUR WITH THESE STORMS. PERSONS LEAVING THE CITY OF ATLANTA BETWEEN 4 AND 6 PM SHOULD ALLOW EXTRA DRIVING TIME AS STORMS ARE EXPECTED TO SOON ENTER THE METRO AREA.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 8:27 PM EDT | Severe Thunderstorm Warning | FFC | Lumpkin, White | 63 min |
| Jul 22, 9:12 PM EDT | Severe Thunderstorm Warning | FFC | Habersham, Stephens | 63 min |
| Jul 23, 3:43 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Spalding | 47 min |
| Jul 23, 4:38 PM EDT | Severe Thunderstorm Warning | FFC | Cobb | 52 min |
| Jul 23, 4:57 PM EDT | Severe Thunderstorm Warning | FFC | Coweta, Fayette | 48 min |
| Jul 23, 5:00 PM EDT | Severe Thunderstorm Warning | FFC | Fulton | 30 min |
| Jul 23, 5:26 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Gwinnett | 49 min |
| Jul 23, 5:55 PM EDT | Severe Thunderstorm Warning | FFC | Rockdale | 50 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.