Alert archive / Georgia / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 79, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 9, 1991, 10:15 PM EDT for Forsyth County, Georgia. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Apr 9, 1991, 10:15 PM EDT (02:15 UTC)
- Expired
- Apr 9, 1991, 10:45 PM EDT
- In force
- 30 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Forsyth County, GA
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 00:00Z, 2.3 hours before the alert went out and 82 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
- 1678 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 959 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 100221 COR SVRATL GAC117-100245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTION FOR EFFECTIVE TIME NATIONAL WEATHER SERVICE ATLANTA GA 1015 PM EDT TUE APR 9 1991 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...FORSYTH COUNTY RADAR WAS SHOWING A SEVERE THUNDERSTORM IN WESTERN FORSYTH COUNTY. THIS STORM WAS MOVING TOWARDS THE EAST AT 45 MILES AN HOUR AND WILL MOVE INTO THE CUMMINGS AREA WITHIN THE NEXT FEW MINUTES. THIS STORM HAS PRODUCED LARGE HAIL IN CHEROKEE COUNTY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...D6ESTRUCTIVE 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, Apr 9, 9:06 PM EDT, 1 hour 9 minutes before
GAZ001>003-100200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GEORGIA 904 PM EDT MON APR 9 1991 ...THE SEVERE THUNDERSTORM WATCH HAS BEEN EXTENDED UNTIL 1100 PM EDT FOR PARTS OF NORTHWEST GEROGIA. THE NATIONAL WEATHER SERVICE IN ATLANTA HAS EXTENDED THE SEVERE THUNDERSTORM WATCH WHICH WAS SET TO EXPIRE AT 900 PM EDT. THE WATCH HAS BEEN EXTENDED UNTIL 11 PM EDT FOR THE FOLLOWING COUNTIES IN NORTHWEST GEORIGA. POLK...FLOYD...GORDON...BARTOW...PICKENS...GILMER...AND FANNIN. THIS INCLUDES ROME...CARTERSVILLE..BLUE RIDGE...JASPER AND THE SURROUNDING AREAS. ALSO...SEVERE THUNDERSTORM WATCH NUMBER 111 CONTINUES IN EFFECT FOR A LARGE PART OF NORTH AND CENTRAL GEORGIA UNTIL MIDNIGHT.
Local storm report, Apr 9, 9:49 PM EDT, 26 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 950 PM EDT TUE APR 9 1991 COUNTY........NEWTON SOURCE........NEWTON COUNTY 911 TIME..........940 PM EDT LOCATION......NEAR COVINGTON TYPE STORM....SEVERE THUNDERSTORM HAIL..........PENNY SIZE DAMAGE........NONE REPORTED INJURIES......NONE
Special weather statement, Apr 9, 9:50 PM EDT, 25 minutes before
GAZ006-008-009-100300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 950 PM EDT TUE APR 9 1991 ...STRONG THUNDERSTORMS MOVING EAST TOWARD CENTRAL GEORGIA... AT 945 PM RADAR IN MACON SHOWED AN AREA OF STRONG THUNDERSTORMS BETWEEN MACON AND COLUMBUS MOVING EAST AT 25 MPH. THESE THUNDERSTORMS STRETCHED FROM SOUTH OF ATLANTA TO NEAR TALBOTTON TO RICHLAND THEN CURVED EAST TO NEAR AMERICUS AND MONTEZUMA. THESE THUNDERSTORMS WILL BE MOVING INTO CENTRAL GEORGIA BETWEEN 9 PM AND MIDNIGHT. SOME OF THE STORMS WILL PRODUCE STRONG GUSTY WINDS... HEAVY RAIN...SMALL HAIL...AND DANGEROUS LIGHTNING. FURTHER STATEMENTS WILL BE ISSUED TO UPDATE YOU ON THESE STORMS AS THEY MOVE INTO CENTRAL GEORGIA THIS EVENING. BROADCASTS ON THE NOAA WEATHER RADIO MAY BE YOU QUICKEST SOURCE OF INFORMATION IF RECEPTION IS AVAILABLE IN YOUR AREA. STAY TUNED FOR LATER BROADCASTS.
Special weather statement, Apr 9, 9:56 PM EDT, 19 minutes before
GAZ006-008-009-100300- SPECIAL WEATHER STATEMENT...CORRECTION 2ND PARA...10 PM TO MIDNIGHT NATIONAL WEATHER SERVICE MACON GA 950 PM EDT TUE APR 9 1991 ...STRONG THUNDERSTORMS MOVING EAST TOWARD CENTRAL GEORGIA... AT 945 PM RADAR IN MACON SHOWED AN AREA OF STRONG THUNDERSTORMS BETWEEN MACON AND COLUMBUS MOVING EAST AT 25 MPH. THESE THUNDERSTORMS STRETCHED FROM SOUTH OF ATLANTA TO NEAR TALBOTTON TO RICHLAND THEN CURVED EAST TO NEAR AMERICUS AND MONTEZUMA. THESE THUNDERSTORMS WILL BE MOVING INTO CENTRAL GEORGIA BETWEEN 10 PM AND MIDNIGHT. SOME OF THE STORMS WILL PRODUCE STRONG GUSTY WINDS... HEAVY RAIN...SMALL HAIL...AND DANGEROUS LIGHTNING. FURTHER STATEMENTS WILL BE ISSUED TO UPDATE YOU ON THESE STORMS AS THEY MOVE INTO CENTRAL GEORGIA THIS EVENING. BROADCASTS ON THE NOAA WEATHER RADIO MAY BE YOU QUICKEST SOURCE OF INFORMATION IF RECEPTION IS AVAILABLE IN YOUR AREA. STAY TUNED FOR LATER BROADCASTS.
Local storm report, Apr 9, 10:02 PM EDT, 13 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 1000 PM EDT TUE APR 9 1991 AT 950 PM A SPOTTER 2 MILES NORTH OF BALL GROUND IN CHEROKEE COUNTY REPORTED PING PONG BALL SIZE HAIL AND HEAVY LIGHTNING.
Local storm report, Apr 9, 10:11 PM EDT, 4 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 1010 PM EDT TUE APR 9 1991 AT 945 PM THE DISPATCHER FOR HARALSON COUNTY SAID THEY WERE HAVING HIGH WINDS BUT NO DAMAGE IN HARALSON COUNTY. HOWEVER...T'HERE WERE TREES REPORTED AS BEING DOWN NEAR FRUTHURST IN CLEBURNE COUNTY IN ALABAMA.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 8:06 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Fulton | 39 min |
| Apr 9, 8:12 PM EDT | Severe Thunderstorm Warning | FFC | Greene, Morgan | 63 min |
| Apr 9, 8:50 PM EDT | Severe Thunderstorm Warning | FFC | Rockdale | 40 min |
| Apr 9, 8:57 PM EDT | Severe Thunderstorm Warning | FFC | Walton | 63 min |
| Apr 9, 10:14 PM EDT | Severe Thunderstorm Warning | FFC | Crawford | 46 min |
| Apr 9, 10:21 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 69 min |
| Apr 9, 10:39 PM EDT | Severe Thunderstorm Warning | FFC | Bibb | 66 min |
| Apr 9, 11:00 PM EDT | Severe Thunderstorm Warning | FFC | Barrow, Oconee, Walton | 60 min |
| Apr 9, 11:00 PM EDT | Severe Thunderstorm Warning | FFC | Hall | 60 min |
| Apr 9, 11:06 PM EDT | Severe Thunderstorm Warning | FFC | Baldwin, Wilkinson | 69 min |
| Apr 9, 11:35 PM EDT | Severe Thunderstorm Warning | FFC | Hancock, Washington | 40 min |
| Apr 10, 12:12 AM EDT | Severe Thunderstorm Warning | FFC | Glascock, Jefferson, Warren | 48 min |
| Apr 10, 12:48 AM EDT | Severe Thunderstorm Warning | FFC | Columbia, Richmond | 42 min |
| Apr 10, 1:01 AM EDT | Severe Thunderstorm Warning | FFC | Lincoln | 44 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; the sounding from the Mesonet's radiosonde archive.