Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 18, NWS Atlanta, GA

April 30, 2003Bartow County, Gordon County, Georgia

NWS Atlanta, GA issued this flash flood warning at Apr 30, 2003, 5:34 PM EDT for Bartow County, Gordon County, Georgia. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 30, 2003, 5:34 PM EDT (21:34 UTC)
Expired
Apr 30, 2003, 7:30 PM EDT
In force
116 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

Counties Bartow County, GA, Gordon County, GA

The radar

The Atlanta radar (KFFC), 113 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 114 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 2003-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 388 joules per kilogram.LCLLFCEL10008507005003002001001 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 2003-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 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
388 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1308 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
46 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 
WGUS52 KFFC 302140
FFWATL
GAC015-129-302330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
534 PM EDT WED APR 30 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BARTOW COUNTY IN NORTHWEST GEORGIA
  GORDON COUNTY IN NORTHWEST GEORGIA

* UNTIL 730 PM EDT

* AT 532 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN TRAINING IN A LINE FROM JUST NORTH OF CARTERSVILLE 
  TO NEAR CALHOUN...MOVING NORTH AT 20 MPH.  FLOODING ON ROADWAYS    
  HAS BEEN REPORTED BY THE PUBLIC NEAR HIGHWAY 411. LICK             
  CREEK...SALACOA CREEK...PINE LOG AND REDBUD CREEKS ARE WITHIN THE  
  AREA OF HEAVIEST RAINFALL WHERE FLOODING MAY OCCUR.

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. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES...
INCLUDING SUVS AND PICKUPS. VEHICLES CAUGHT IN RISING WATER SHOULD
BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

LAT...LON 3419 8493 3423 8475 3457 8474 3456 8499

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 3:15 PM EDTSevere Thunderstorm WarningFFCGilmer30 min
Apr 30, 3:18 PM EDTSevere Thunderstorm WarningFFCCherokee27 min
Apr 30, 3:31 PM EDTSevere Thunderstorm WarningFFCPickens29 min
Apr 30, 3:35 PM EDTSevere Thunderstorm WarningFFCForsyth25 min
Apr 30, 3:39 PM EDTSevere Thunderstorm WarningFFCFannin36 min
Apr 30, 3:51 PM EDTSevere Thunderstorm WarningFFCGordon24 min
Apr 30, 3:58 PM EDTSevere Thunderstorm WarningFFCUnion32 min
Apr 30, 4:33 PM EDTSevere Thunderstorm WarningFFCGordon27 min
Apr 30, 4:49 PM EDTSevere Thunderstorm WarningFFCBartow26 min
Apr 30, 5:46 PM EDTSevere Thunderstorm WarningFFCBartow29 min
Apr 30, 6:26 PM EDTSevere Thunderstorm WarningFFCDade, Walker34 min
Apr 30, 7:22 PM EDTSevere Thunderstorm WarningFFCPolk23 min

Nearby

Flash Flood Warnings in Georgia, 2003Every flash flood warning in 2003

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.