Alert archive / Georgia / Flash Flood Warnings in 1992
Flash Flood Warning 6, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 21, 1992, 9:04 PM EDT for Rockdale County, Georgia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1992, 9:04 PM EDT (01:04 UTC)
- Expired
- Aug 22, 1992, 12:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Rockdale County, GA
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 00:00Z, 1.1 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
- 299 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 632 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 220107 FFWATL GAC247-220400- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ATLANTA GA 904 PM EDT FRI AUG 21 1992 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...ROCKDALE COUNTY AT 9:00 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY RAINFALL WAS CONTINUING TO FALL OVER NORTHWEST GEORGIA. SOME OF THE HEAVIER RAINFALL AND THUNDERSTORMS HAVE LINGERED OVER ROCKDALE COUNTY FOR THE LAST COUPLE OF HOURS. THEREFORE...STREAMS AND CREEKS IN THE COUNTY WERE AT BANKFULL OR OVERFLOWING. ACCORDING TO OFFICIALS IN ROCKDALE COUNTY...SEVERAL ROADS IN THE AREA WERE IMPASSABLE. HEAVY RAINFALL WILL PERSIST THROUGH THE EARLY PART OF THE NIGHT. REIDENTS SHOULD BE PREPARED TO TAKE PRECAUTIONS IF NECESSARY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF 4FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, Aug 21, 4:14 PM EDT, 4 hours 50 minutes before
GAZ003-222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 410 PM EDT FRI AUG 21 1992 ...THUNDERSHOWERS OVER NORTHWEST GEORGIA WERE PRODUCING LOCALLY HEAVY RAINS.. AT 410 PM EDT WEATHER RADAR INDICATED MOST OF NORTHWEST GEORGIA WAS COVERED BY AN AREA OF RAIN WITH EMBEDDED THUNDERSHOWERS. REPORTS OF UP TO TWO INCHES OF RAIN IN ONE HOUR IN COWETA COUNTY HAVE BEEN RECEIVED AT THE WEATHER SERVICE. THIS RAIN HAS PRODUCED STREAMS NEAR BANKFULL AND LOCALIZED POOLING OF WATER IN LOW PLACES ON HIGHWAYS...THUS MAKING DRIVING DANGEROUS. THE RAINFALL IS EXPECTED TO CONTINUE FOR THE REMAINDER OF THIS AFTERNOON AND INTO THIS EVENING. WITH THE GROUND ALREADY SATURATED ACROSS MUCH OF NORTHWEST GEORGIA DUE TO THE RAIN OF THE LAST FEW DAYS...STREAMS MAY GO ABOVE BANK FULL AND SOME LOCALIZED FLOODING MAY OCCUR. PERSONS IN NORTHWEST GEORGIA SHOULD BE ON THE ALERT FOR PROBLEMS THAT THIS HEAVY RAIN MAY PRODUCE AND TAKE APPROPRIATE PRCAUTIONS.
Special weather statement, Aug 21, 4:16 PM EDT, 4 hours 48 minutes before
GAZ001-003-222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 415 PM EDT FRI AUG 21 1992 ...THUNDERSHOWERS OVER NORTHWEST GEORGIA WERE PRODUCING LOCALLY HEAVY RAINS.. AT 415 PM EDT WEATHER RADAR INDICATED MOST OF NORTHWEST GEORGIA WAS COVERED BY AN AREA OF RAIN WITH EMBEDDED THUNDERSHOWERS. REPORTS OF UP TO TWO INCHES OF RAIN IN ONE HOUR IN COWETA COUNTY HAVE BEEN RECEIVED AT THE WEATHER SERVICE. THIS RAIN HAS PRODUCED STREAMS NEAR BANKFULL AND LOCALIZED POOLING OF WATER IN LOW PLACES ON HIGHWAYS...THUS MAKING DRIVING DANGEROUS. THE RAINFALL IS EXPECTED TO CONTINUE FOR THE REMAINDER OF THIS AFTERNOON AND INTO THIS EVENING. WITH THE GROUND ALREADY SATURATED ACROSS MUCH OF NORTHWEST GEORGIA DUE TO THE RAIN OF THE LAST FEW DAYS...STREAMS MAY GO ABOVE BANK FULL AND SOME LOCALIZED FLOODING MAY OCCUR. PERSONS IN NORTHWEST GEORGIA SHOULD BE ON THE ALERT FOR PROBLEMS THAT THIS HEAVY RAIN MAY PRODUCE AND TAKE APPROPRIATE PRCAUTIONS.
Local storm report, Aug 21, 4:47 PM EDT, 4 hours 17 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 430 PM EDT FRI AUG 21 1992 COUNTY........ RABUN SOURCE........ UNOFFICAL OBSERVER AND SHERIFFS DEPT. TIME.......... 2115 EDT THU AUG 20 1992 LOCATION...... EASTERN RABUN COUNTY OF NORTHEAST GEORGIA TYPE STORM.... STATIONARY THUNDERSTORM HAIL.......... NONE DAMAGE........ 4.36 INCHES OF RAINFALL WITHIN 3 HOUR PERIOD. WATER COVERED BRIDGE AND APPEARED BRIDGE WASHED AWAY BUT OK AFTER \WATER SUBSIDED. INJURIES...... NONE FLASH FLOOD WARNING IN EFFECT 2130EDT - 0030EDT.
Special weather statement, Aug 21, 6:10 PM EDT, 2 hours 54 minutes before
GAZ001-003-230000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 610 PM EDT FRI AUG 21 1992 ...THUNDERSHOWERS OVER NORTHWEST GEORGIA WERE PRODUCING LOCALLY HEAVY RAINS.. AT 610 PM EDT WEATHER RADAR INDICATED MOST OF NORTH GEORGIA WAS COVERED BY AN AREA OF HEAVY RAIN WITH EMBEDDED THUNDERSTORMS. OVER TWO INCHES OF RAIN HAD FALLEN IN SEVERAL LOCATIONS. SEVERAL COUNTIES OF METROPOLITAN ATLANTA HAD STREETS AND ROADS FLOODED. IN ADDITION...AUTHORITIES IN COBB COUNTY REPORTED THAT A FEW HOMES WERE FLOODING. THE RAINFALL WILL CONTINUE THROUGH THIS EVENING AND WILL AT TIMES BE HEAVY. OVER NORTHWEST GEORGIA...THE GROUND WAS ALREADY SATURATED AFTER THE PREVIOS RAIN OF THE LAST FEW DAYS. AREA STREAMS AND CREEKS WERE APPROACHING BANKFULL AT 610 PM EDT. FLOODING CONDITIONS COULD DEVELOP RAPIDLY WITH ADDITIONAL RAINFALL OVER LOW-LYING AREAS. RESIDENTS AND MOTORISTS SHOULD BE ALERT FOR POSSIBLE FLOODING. LISTEN TO LOCAL TV AND RADIO STATIONS OR NOAA WEATHER RADIO FOR UPDATES ON THIS SITUATION.
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.