Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 136, NWS Atlanta, GA

August 4, 2003Banks County, Georgia

NWS Atlanta, GA issued this flash flood warning at Aug 4, 2003, 10:39 PM EDT for Banks County, Georgia. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 4, 2003, 10:39 PM EDT (02:39 UTC)
Expired
Aug 5, 2003, 12:45 AM EDT
In force
2 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Banks County, GA

The radar

The Greer radar (KGSP), 130 km from the middle of the area, began a volume at 02:42 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 00:00Z, 2.7 hours before the alert went out and 145 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 00:00Z on 2003-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2177 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 00:00Z on 2003-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.19395878Sfc1 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
2177 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
868 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 050243
FFWATL
GAC011-050445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1039 PM EDT MON AUG 4 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BANKS COUNTY IN NORTHEAST GEORGIA

* UNTIL 1245 AM EDT

* AT 1036 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 8 MILES SOUTHEAST OF HOMER...OR ABOUT 5 MILES
  NORTHEAST OF COMMERCE...MOVING SOUTHEAST AT 10 MPH.

RADAR ESTIMATED 3 TO 5 INCHES OF RAIN HAS FALLEN IN BANKS COUNTY 
DURING THE PAST 2 HOURS. SMALL STREAMS AND CREEKS ARE OR WILL BE 
OVERFLOWING THEIR BANKS. SOME CREEKS THAT WILL BE EFFECTED ARE
GARRISON CREEK...WEBB CREEK...NAILS CREEK...CASH CREEK...AND SILVER
CREEK.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3448 8357 3428 8365 3423 8336 3445 8338

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 8:36 PM EDTSevere Thunderstorm WarningFFCBartow24 min
Aug 4, 9:01 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee29 min
Aug 4, 9:13 PM EDTSevere Thunderstorm WarningFFCBanks32 min
Aug 4, 9:32 PM EDTSevere Thunderstorm WarningFFCCherokee, Cobb28 min
Aug 4, 9:39 PM EDTSevere Thunderstorm WarningFFCBanks, Hall, Jackson36 min
Aug 4, 10:18 PM EDTSevere Thunderstorm WarningFFCBanks, Hall, Jackson, Madison42 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.