Alert archive / Georgia / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 201, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 4, 1991, 7:46 PM EDT for Bibb County, Houston County, Georgia. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1991, 7:46 PM EDT (23:46 UTC)
- Expired
- Jul 4, 1991, 8:45 PM EDT
- In force
- 59 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Bibb County, GA, Houston County, GA
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 11.8 hours before the alert went out and 302 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
- 711 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- -5 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 KMCN 042346 SVRMCN GAC021-153-050045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MACON GA 746 PM EDT THU JUL 4 1991 THE NATIONAL WEATHER SERVICE IN MACON GA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL GEORGIA ...BIBB COUNTY...HOUSTON COUNTY AT 745 PM RADAR AT MACON SHOWED A SEVERE THUNDERSTORM 8 MILES WEST OF THE REGIONAL AIRPORT MOVING EAST 15 MILES AN HOUR. 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 OUTSIDE 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
Special weather statement, Jul 4, 2:50 PM EDT, 4 hours 56 minutes before
GAZ001-003-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 245 PM EDT THU JUL 4 1991 ...THUNDERSTORMS WERE MOVING INTO THE ATLANTA METRO AREA... AT 240 PM EDT...NATIONAL WEATHER SERVICE RADAR IN ATLANTA WAS SHOWING A BAND OF STRONG THUNDERSTORMS STRETCHING FROM JUST SOUTH LAKE LANIER THROUGH ROSWELL AND SOUTH THROUGH DOUGLASVILLE AND NEWNAN. THE THUNDERSTORMS WERE MOVING EAST AT 20 MPH AND SHOULD MOVE INTO THE ATLANTA METRO AREA DURING THE NEXT HOUR. THESE THUNDERSTORMS WILL PRODUCED DANGEROUS LIGHTNING. REMEMBER MANY PEOPLE ARE KILLED EACH YEAR BY LIGHTNING. IF YOU ARE OUTSIDE SEEK SAFETY INSIDE A BUILDING. STAY AWAY FROM OPEN WATER WHEN THUNDERSTORMS ARE NEAR. OTHER STRONG THUNDERSTORMS WERE LOCATED BETWEEN ROME AND DAWSONVILLE IN NORTHWEST GEORGIA. ADDITIONAL STATEMENTS WILL BE ISSUED AS NEEDED.
Special weather statement, Jul 4, 3:37 PM EDT, 4 hours 9 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006- TNZ001>003-005-042130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 335 PM EDT THUR JUL 4 1991 AT 330 PM EDT THUNDERSTORMS...SOME WITH VERY HEAVY RAINFALL...WERE OCCURRING OVER NORTH GEORGIA AND NORTHERN SOUTH CAROLINA. THE THUNDERSTORMS WITH THE HEAVIEST RAINFALL WERE JUST NORTH OF ATLANTA ...JUST SOUTHEAST OF ROYSTON IN ELBERT COUNTY AND JUST SOUTH OF TOCCOA IN STEPHENS COUNTY. THE STORMS WERE MOVING EAST AT 22 MILES AN HOUR. PERSONS IN STEPHENS...FRANKLIN...HART...AND ELBERT COUNTIES OF NORTHEAST GEORGIA SHOULD BE ON THE ALERT FOR THREATENING WEATHER CONDITIONS FOR THE NEXT COUPLE OF HOURS./ BRIEF HEAVY DOWNPOURS...DANGEROUS CLOUD TO GROUND LIGHTNING AND GUSTY SURFACE WINDS ARE POSSIBLE WITH THESE STORMS.
Local storm report, Jul 4, 4:12 PM EDT, 3 hours 34 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 410 PM EDT THU JUL 04 1991 COUNTY...FULTON SOURCE...LOCAL MEDIA TIME...300 PM 4 JUL 1991 LOCATION...LENOX ROAD TYPE STORM...SEVERE THUNDERS`TORM DAMAGE...ONE TREE DOWN ON ROAD INJURIES...NONE REPORTED
Special weather statement, Jul 4, 4:35 PM EDT, 3 hours 11 minutes before
GAZ001-003-042300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 435 PM EDT THU JUL 4 1991 ...THUNDERSTORMS CONTINUED SCATTERED OVER NORTHWEST GEORGIA... AT 425 PM EDT...NATIONAL WEATHER SERVICE RADAR IN ATLANTA CONTINUED TO SHOW SCATTERED STRONG THUNDERSTORMS IN NORTHWEST GEORGIA. ONE LINE OF STORMS EXTENDED FROM NEAR LAWRENCEVILLE TO COVINGTON TO MC DONOUGH TO EAST OF GRIFFIN. OTHER STRONG STORMS WERE FROM NEAR JASPER TO CARTERWVILLE AND NEAR NORTH OF ROME. STORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR. THESE THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING. REMEMBER MANY PEOPLE ARE KILLED EACH YEAR BY LIGHTNING. IF YOU ARE OUTSIDE SEEK SAFETY INSIDE A BUILDING. STAY AWAY FROM OPEN WATER WHEN THUNDERSTORMS ARE NEAR. HEAVY RAIN CAN QUICKLY BRING WATER OVER ROADS...DO NOT ATTEMPT TO CROSS ROADS COVERED BY WATER. FLASH FLOODING FROM THUNDERSTORMS USUALLY SUBSIDES SOON AFTER THE RAIN ENDS.
Local storm report, Jul 4, 4:36 PM EDT, 3 hours 10 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 410 PM EDT THU JUL 04 1991 COUNTY...DEKALB SOURCE...DEKALB COUNTY EMERGENCY DISPATCH TIME...APPRX 400 PM EDT 7/4/91 LOCATION...GOODWIN RD. AND' EAST ROXBORO RD. TYPE STORM...POSSIBLE SEVERE THUNDERSTORM DAMAGE...TREES DOWN ON ROAD INJURIES...NONE REPORTED
Special weather statement, Jul 4, 6:04 PM EDT, 1 hour 42 minutes before
GAZ001-003-050000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 605 PM EDT THU JUL 4 1991 ...THUNDERSTORMS OVER NORTHWEST GEORGIA DIMINISHING... AT 605 PM EDT...NATIONAL WEATHER SERVICE RADAR IN ATLANTA CONTINUED TO SHOW A FEW THUNDERSTORMS IN NORTHWEST GEORGIA. THE STRONGEST WAS NEAR CAVE SPRINGS IN FLOYD COUNTY. THIS STORM WAS MOVING EAST NEAR 15 MPH. THE THUNDERSTORM ACTIVITY OVER NORTHWEST GEORGIA HAS BEEN ON THE DECREASE5 OVER THE LAST HOUR AND IS EXPECTED TO CONTINUE TO DECREASE FOR THE REMAINDER OF THE EVENING. THESE FEW REMAINING THUNDERSTOMS MAY BE ACCOMPANIED BY BRIEF HEAVY WIND... GUSTY WINDS AND LIGHTNING.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 3:48 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb | 42 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.