Alert archive / Georgia / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 191, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jun 4, 1991, 4:31 PM EDT for DeKalb County, Gwinnett County, Rockdale County, Georgia. It was in force for 44 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
- Jun 4, 1991, 4:31 PM EDT (20:31 UTC)
- Expired
- Jun 4, 1991, 5:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties DeKalb County, GA, Gwinnett County, GA, Rockdale County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 4, 5:00 PM EDT | Hail 1 | Rockdale, 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, 8.5 hours before the alert went out and 75 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
- 100 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1365 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- -25 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 042031 SVRATL GAC089-135-247-042115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 431 PM EDT TUE JUN 4 1991 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...DEKALB COUNTY...SOUTHERN GWINNETT COUNTY...ROCKDALE COUNTY NATIONAL WEATHER SERVICE RADAR SHOWS A SEVERE THUNDERSTORM BETWEEN SNELLVILLE AND LITHONIA. THIS STORM IS MOVING SOUTH AT 10 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSWSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
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, Jun 4, 3:21 PM EDT, 1 hour 10 minutes before
GAZ003-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 320 PM EDT SUN JUN 4 1991 ...THUNDERSTORMS WERE DEVELOPING OVER NORTHWEST GEORGIA... AT 315 PM EDT NATIONAL WEATHER SERVICE RADAR IN ATLANTA WAS SHOWING A CLUSTER OF STONG THUNDERSTORM IN NORTHWEST GEORGIA. THE THUNDERSTORMS STRETCHED FROM JUST WEST OF ROME..NORTH TO THE GEORGIA TENNESSEE STATE LINE..JUST SOUTH OF CHATTANOOGA. THE THUNDERSTORMS WERE MOVING SOUTH AT 10 MILES AN HOUR. THESE STORMS HAVED PRODUCED HEAVY RAIN...FREQUENT LIGHTNING AND ARE CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. PEOPLE IN NORTHWEST GEORGIA SHOULD STAY ALERT AS THESE THUNDERSTORMS CONTINUE TO DEVELOP AND BE PREPARED TO SEEK SHELTER IF NECESSARY. EVERY YEAR SEVERAL PEOPLE ARE KILLED BY LIGHTNING WHILE OUTDOORS. HEAVY RAIN MAY PRODUCE LOCALIZED FLOODING OF SMALL STREAMS AND POORLY DRAINED AREAS.
Special weather statement, Jun 4, 3:27 PM EDT, 1 hour 4 minutes before
GAZ003-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 320 PM EDT TUE JUN 4 1991 ...THUNDERSTORMS WERE DEVELOPING OVER NORTHWEST GEORGIA... AT 315 PM EDT NATIONAL WEATHER SERVICE RADAR IN ATLANTA WAS SHOWING A CLUSTER OF STONG THUNDERSTORMS IN NORTHWEST GEORGIA. THE THUNDERSTORMS STRETCHED FROM JUST WEST OF ROME..NORTH TO THE GEORGIA TENNESSEE STATE LINE..JUST SOUTH OF CHATTANOOGA. THE THUNDERSTORMS WERE MOVING SOUTH AT 10 MILES AN HOUR. THESE STORMS HAVED PRODUCED HEAVY RAIN...FREQUENT LIGHTNING AND ARE CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. PEOPLE IN NORTHWEST GEORGIA SHOULD STAY ALERT AS THESE THUNDERSTORMS CONTINUE TO DEVELOP AND BE PREPARED TO SEEK SHELTER IF NECESSARY. EVERY YEAR SEVERAL PEOPLE ARE KILLED BY LIGHTNING WHILE OUTDOORS. HEAVY RAIN MAY PRODUCE LOCALIZED FLOODING OF SMALL STREAMS AND POORLY DRAINED AREAS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 3:48 PM EDT | Severe Thunderstorm Warning | FFC | Gordon | 42 min |
| Jun 4, 4:22 PM EDT | Severe Thunderstorm Warning | FFC | Paulding | 38 min |
| Jun 4, 6:11 PM EDT | Severe Thunderstorm Warning | FFC | Fulton | 34 min |
| Jun 4, 6:14 PM EDT | Severe Thunderstorm Warning | FFC | Jasper, Jones | 61 min |
| Jun 4, 6:21 PM EDT | Severe Thunderstorm Warning | FFC | Butts | 39 min |
| Jun 4, 6:50 PM EDT | Severe Thunderstorm Warning | FFC | Bibb, Monroe | 55 min |
| Jun 4, 7:29 PM EDT | Severe Thunderstorm Warning | FFC | Pike | 31 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1991Every severe thunderstorm warning in 1991
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.