Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 4, NWS Atlanta, GA

March 6, 2003Hall County, Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 6, 2003, 4:55 AM EST for Hall County, Georgia. It was in force for 3 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
Mar 6, 2003, 4:55 AM EST (09:55 UTC)
Expired
Mar 6, 2003, 8:00 AM EST
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Hall County, GA

The radar

The Atlanta radar (KFFC), 120 km from the middle of the area, began a volume at 09:57 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, 9.9 hours before the alert went out and 117 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 2003-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2003-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.1939587897117Sfc1 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
68 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
717 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 060955
FFWATL
GAC139-061300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
455 AM EST THU MAR 6 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HALL COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 800 AM EST

* AT 447 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN OVER GAINESVILLE...MOVING EAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE FLOWERY BRANCH...
  GAINESVILLE...OAKWOOD AND WESTSIDE

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.

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. VEHICHLES CAUGHT IN RISING WATER SHOULD
BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

YOU CAN REPORT SERIOUS FLOODING TO THE NATIONAL WEATHER SERVICE BY
CALLING 7 7 0 4 8 6 1 1 3 3 AT EXTENSION 2 0 4.

LAT...LON 3420 8399 3414 8385 3435 8362 3448 8385

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 8:25 PM ESTSevere Thunderstorm WarningFFCJasper, Morgan, Newton35 min
Mar 5, 8:33 PM ESTSevere Thunderstorm WarningFFCHaralson, Polk27 min
Mar 5, 9:48 PM ESTSevere Thunderstorm WarningFFCBanks27 min
Mar 5, 9:58 PM ESTSevere Thunderstorm WarningFFCHeard32 min
Mar 5, 10:04 PM ESTSevere Thunderstorm WarningFFCTroup26 min
Mar 5, 10:09 PM ESTSevere Thunderstorm WarningFFCCoweta, Douglas, Fulton36 min
Mar 5, 10:23 PM ESTSevere Thunderstorm WarningFFCTroup37 min
Mar 5, 10:31 PM ESTSevere Thunderstorm WarningFFCMeriwether44 min
Mar 5, 10:32 PM ESTSevere Thunderstorm WarningFFCClayton, DeKalb, Fayette28 min
Mar 5, 10:34 PM ESTTornado WarningFFCMeriwether, Troup41 min
Mar 5, 10:55 PM ESTSevere Thunderstorm WarningFFCPike, Spalding35 min
Mar 5, 11:08 PM ESTSevere Thunderstorm WarningFFCNewton, Rockdale22 min
Mar 5, 11:15 PM ESTSevere Thunderstorm WarningFFCButts30 min
Mar 5, 11:33 PM ESTSevere Thunderstorm WarningFFCJasper42 min
Mar 5, 11:35 PM ESTSevere Thunderstorm WarningFFCMorgan25 min
Mar 5, 11:56 PM ESTSevere Thunderstorm WarningFFCGreene34 min
Mar 6, 3:10 AM ESTFlash Flood WarningFFCFloyd3 hr
Mar 6, 4:05 AM ESTFlash Flood WarningFFCBartow3 hr
Mar 6, 4:30 AM ESTFlash Flood WarningFFCCherokee, Forsyth3 hr
Mar 6, 5:00 AM ESTSevere Thunderstorm WarningFFCGwinnett30 min
Mar 6, 9:10 AM ESTFlash Flood WarningFFCPolk4 hr
Mar 6, 10:14 AM ESTFlash Flood WarningFFCForsyth4 hr
Mar 6, 4:39 PM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler36 min
Mar 6, 4:56 PM ESTSevere Thunderstorm WarningFFCMontgomery19 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.