Alert archive / Georgia / Flash Flood Warnings in 1996

Flash Flood Warning 22, NWS Atlanta, GA

January 27, 1996DeKalb County, Fulton County, Gwinnett County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jan 27, 1996, 7:55 AM EST for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 27, 1996, 7:55 AM EST (12:55 UTC)
Expired
Jan 27, 1996, 12:00 PM EST
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 12:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.9 hours before the alert went out and 58 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 1996-01-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 1996-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -73 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1839 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-73 m²/s²
0-3 km storm-relative helicity
-13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KATL 271258
FFWATL
GAC089-121-135-271700-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
755 AM EST SAT JAN 27 1996
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL NOON EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...DE KALB COUNTY...NORTH CENTRAL FULTON COUNTY
   ...NORTHERN GWINNETT COUNTY
 
VERY HEAVY RAINS HAVE FALLEN OVERNIGHT THROUGHOUT THE ATLANTA METRO
AREA. RAINFALL HAS AVERAGED BETWEEN THREE AND THREE AND A HALF INCHES
SINCE LATE FRIDAY AFTERNOON. AS A RESULT OF THE VERY HEAVY RAINFALL BIG
CREEK...SUWANNEE CREEK AND PEACHTREE CREEK HAVE GONE INTO FLOOD.
 
AT 7 AM THIS MORNING THE STAGE AT PEACHTREE CREEK WAS 18.3 FEET AT NORTH
SIDE DRIVER. FLOOD STAGE IS 17 FEET. THE PEACHTREE CREEK SHOULD FALL
BELOW FLOOD STAGE AT THE GAGE SITE BY 10 AM THIS MORNING. PEACHTREE
CREEK CRESTED NEAR 18.5 FEET AROUND 430 AM THIS MORNING.
 
THE STAGE AT BIG CREEK NEAR ALPHARETTA WAS 9.2 FEET AT 7 AM. BANKFULL IS
7 FEET. IT WILL CONTINUE TO RISE STEADLY TODAY AS RUNOFF CONTINUES TO FL
INTO BIG CREEK. BIG CREEK SHOULD RISE TO 10 TO 10.5 FEET THEN REMAIN
NEAR THAT LEVEL UNTIL LATE TONIGHT.
 
SUWANNEE CREEK IN NORTH GWINNETT COUNTY WAS A FOOT AND A HALF ABOVE
BANKFULL AT 9 FEET EARLY THIS MORNING. BANKFULL IS 7 FEET. SUWANNEE
WILL RISE TO NEAR 10 FEET BEFORE CRESTING LATER TODAY...THEN FALL VERY
SLOWLY TONIGHT AND SUNDAY.
 
FLOODING OF THE AREA CREEK IN THE NORTHERN PART OF THE ATLANTA METRO
AREA WILL CONTINUE. YOU ARE URGED NOT TO ATTEMPT TO FORGE THEM AN ABOVE
ALL...KEEP CHILDREN AWAY FROM THEM. THE INFORMATION CONCERNING PEACHTREE
CREEK...SUWANNEE...AND BIG CREEK WILL BE AGAIN LATER THIS MORNING.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 26, 7:07 PM ESTFlash Flood WarningFFCFannin, Lumpkin, Towns, Union6 hr
Jan 26, 7:07 PM ESTFlash Flood WarningFFCBartow, Floyd, Polk6 hr
Jan 26, 7:07 PM ESTFlash Flood WarningFFCDawson, Gilmer, Gordon, Pickens6 hr
Jan 26, 7:07 PM ESTFlash Flood WarningFFCChattooga6 hr
Jan 26, 7:07 PM ESTFlash Flood WarningFFCMurray6 hr
Jan 26, 8:57 PM ESTFlash Flood WarningFFCCatoosa, Walker, Whitfield4 hr
Jan 26, 8:57 PM ESTFlash Flood WarningFFCDade4 hr
Jan 26, 10:52 PM ESTFlash Flood WarningFFCCarroll, Douglas, Haralson, Heard, Paulding5 hr
Jan 26, 10:52 PM ESTFlash Flood WarningFFCCherokee, Cobb, Forsyth5 hr
Jan 26, 11:18 PM ESTSevere Thunderstorm WarningFFCHarris, Troup42 min
Jan 26, 11:49 PM ESTSevere Thunderstorm WarningFFCMeriwether, Pike26 min
Jan 27, 12:02 AM ESTFlash Flood WarningFFCDeKalb, Fulton3 hr
Jan 27, 12:12 AM ESTSevere Thunderstorm WarningFFCTalbot, Upson33 min
Jan 27, 1:18 AM ESTFlash Flood WarningFFCBartow, Floyd, Gordon, Pickens, Polk102 min
Jan 27, 1:18 AM ESTFlash Flood WarningFFCDawson, Fannin, Gilmer, Murray102 min
Jan 27, 1:18 AM ESTFlash Flood WarningFFCLumpkin, Towns, Union102 min
Jan 27, 1:18 AM ESTFlash Flood WarningFFCChattooga102 min
Jan 27, 2:00 AM ESTFlash Flood WarningFFCWhite3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCDawson, Fannin, Gilmer, Lumpkin, Murray, Union3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCBartow, Floyd, Polk3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCDeKalb, Fulton3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCGordon, Pickens3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCChattooga3 hr
Jan 27, 3:02 AM ESTFlash Flood WarningFFCTowns3 hr

Nearby

Flash Flood Warnings in Georgia, 1996Every flash flood warning in 1996

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; radar from the NEXRAD Level II archive.