Alert archive / Georgia / Flash Flood Warnings in 1992
Flash Flood Warning 23, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Dec 17, 1992, 7:37 AM EST for Cobb County, Georgia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Dec 17, 1992, 7:37 AM EST (12:37 UTC)
- Expired
- Dec 17, 1992, 11:00 AM EST
- In force
- 3 hr
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Cobb County, GA
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 0.6 hours before the alert went out and 118 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 289 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood 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, Dec 17, 3:43 AM EST, 3 hours 54 minutes before
GAZ002-170945- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 341 AM EST THU DEC 17 1992 ...A FLOOD WATCH IS IN EFFECT FOR NORTHERN GEORGIA UNTIL SUNRISE... AT 330 AM EST...A STRONG THUNDERSTORM WAS INDICATED OVER NORTHEAST GEORGIA 10 MILES SOUTHWEST OF DAWSONVILLE. THIS STORM WAS MOVING TO THE NORTHEAST AT 50 MILES AN HOUR AND MAY PRODUCE BRIEF HEAVY RAINFALL AND AND STRONG GUSTY WINDS AS IT CROSSES EXTREME NORTHEAST GEORGIA. RAIN CONTINUED TO COVER MOST OF GEOERGIA NORTH OF A LINE FROM 40 MILES SOUTH OF COLUMBUS TO AUGUSTA AND EXTENDED NORTHWARD TO NEAR KNOXVILLE TENNESSEE AND CHARLOTTE NORTH CAROLINA. THIS RAIN AREA WAS ALSO MOVING TO THE NORTHEAST AT 50 MILES AN HOUR. &
Special weather statement, Dec 17, 3:49 AM EST, 3 hours 48 minutes before
GAZ002-170945- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 341 AM EST THU DEC 17 1992 ...A FLOOD WATCH IS IN EFFECT FOR NORTHERN GEORGIA UNTIL SUNRISE... AT 330 AM EST...A STRONG THUNDERSTORM WAS INDICATED OVER NORTHEAST GEORGIA 10 MILES SOUTHWEST OF DAWSONVILLE. THIS STORM WAS MOVING TO THE NORTHEAST AT 50 MILES AN HOUR AND MAY PRODUCE BRIEF HEAVY RAINFALL AND AND STRONG GUSTY WINDS AS IT CROSSES EXTREME NORTHEAST GEORGIA. RAIN CONTINUED TO COVER MOST OF GEOERGIA NORTH OF A LINE FROM 40 MILES SOUTH OF COLUMBUS TO AUGUSTA AND EXTENDED NORTHWARD TO NEAR KNOXVILLE TENNESSEE AND CHARLOTTE NORTH CAROLINA. THIS RAIN AREA WAS ALSO MOVING TO THE NORTHEAST AT 50 MILES AN HOUR. &
Special weather statement, Dec 17, 5:55 AM EST, 1 hour 42 minutes before
GAZ002-004-171200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 554 AM EST THU DEC 17 1992 ...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHERN GEORGIA UNTIL SUNRISE... AT 530 AM EST...RAIN CONTINUED OVER MOST OF GEORGIA NORTH OF A LINE FROM COLUMBUS TO AUGUSTA. MAINY OF THE RIVERS AND STREAMS IN NORTHEAST GEORGIA ARE AT OR NEAR FULL BANK AND WITH ADDITIONAL RAIN COULD FLOOD LOW LYING AREAS AND ROADWAYS. PERSONS TRAVELING IN NORTHEAST GEORGIA THIS MORNING SHOULD BE ON THE ALERT FOR POSSIBLE FLOODING...DO NOT TRY TO DRIVE THROUGH AREAS WHERE WATER COVERS THE ROADWAY AND KEEP A WATCHFUL EYE FOR STUDENTS IN RURAL AREAS WAITING FOR SCHOOL BUSES.
Special weather statement, Dec 17, 6:40 AM EST, 57 minutes before
GAZ002-004-171200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 640 AM EST THU DEC 17 1992 ...A FLASH FLOOD WATCH IS IN EFFECT FOR MOST COUNTIES OF NORTHEAST GEORGIA UNTIL EARLY AFTERNOON... SCATTERED THUNDERSTORMS WERE INDICATED OVER CENTRAL AND EAST GEORGIA. THE LARGEST OF THESE STORMS WAS LOCATED OVER MILLEDGEVILLE. THESE STORMS WERE EMBEDDED IN A LARGE AREA THAT COVERED MOST OF GEORGIA AND THE CAROLINAS NvORTH OF A LINE FROM ALBANY TO COLUMBIA SOUTH CAROLINA. MOVEMENT WAS TO THE NORTHEAST AT 50 MILES AN HOUR.
Special weather statement, Dec 17, 7:34 AM EST, 3 minutes before
GAZ002-004-171200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 735 AM EST THU DEC 17 1992 ...A FLASH FLOOD WATCH IS IN EFFECT FOR MOST COUNTIES OF NORTHEAST GEORGIA UNTIL EARLY AFTERNOON... THUNDERSTORMS WERE INDICATED 10 MILES WEST OF AUGUSTA AND 25 MILES SOUTH OF GREENWOOD SOUTH CAROLINA. THESE STORMS WERE EMBEDDED IN A LARGE AREA OF RAIN THAT COVERED MOST OF GEORGIA AND THE CAROLINAS NORTH OF A LINE FROM ALBANY TO COLUMBIA SOUTH CAROLINA. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 45 MILES AN HOUR.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 10:11 PM EST | Flash Flood Warning | FFC | Clayton, DeKalb, Fulton | 5 hr |
| Dec 17, 4:20 AM EST | Flash Flood Warning | FFC | Habersham | 55 min |
| Dec 17, 7:37 AM EST | Flash Flood Warning | FFC | Clayton, DeKalb, Fulton | 3 hr |
Nearby
Flash Flood Warnings in Georgia, 1992Every flash flood warning in 1992
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.