Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 10, NWS Atlanta, GA

March 20, 20034 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 20, 2003, 5:30 AM EST for 4 counties in 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 outline as issued.

The facts

Issued
Mar 20, 2003, 5:30 AM EST (10:30 UTC)
Expired
Mar 20, 2003, 9:30 AM EST
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

Counties Banks County, GA, Barrow County, GA, Jackson County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 124 km from the middle of the area, began a volume at 10:29 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, 10.5 hours before the alert went out and 119 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 2003-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 753 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 2003-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 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
753 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
467 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.6
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 201030
FFWATL
GAC011-013-157-297-201430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
530 AM EST THU MAR 20 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BARROW COUNTY IN NORTH CENTRAL GEORGIA
  WALTON COUNTY IN NORTH CENTRAL GEORGIA
  BANKS COUNTY IN NORTHEAST GEORGIA
  JACKSON COUNTY IN NORTHEAST GEORGIA

* UNTIL 930 AM EST

* VERY HEAVY RAIN FELL OVERNIGHT IN THESE COUNTIES. IN WALTON 
  COUNTY BOLD SPRINGS ROAD IN MONROE WAS CLOSED BY HIGH WATER.
  IN BARROW COUNTY CHICKEN LYLE ROAD...MULBERRY ROAD...ROCKWELL 
  CHURCH ROAD AND PENDERGRASS ROADS WERE CLOSED BY HIGH WATER.
  IN JACKSON COUNTY AND BANKS COUNTIES NEAR COMMERCE...HIGHWAY 
  441 AND AN RV PARK WERE FLOODED. OTHER AREA RIVERS AND CREEKS 
  ARE LIKELY RISING TO AT OR OVER BANKFULL...INCLUDING THE MIDDLE    
  OCONEE RIVER NEAR ARCADE.

* OTHER LOCATIONS IN THE WARNING INCLUDE ARCADE...AUBURN...
  COMMERCE...HOMER...HOSCHTON...JEFFERSON...MAYSVILLE...MONROE...
  RUSSELL...SOCIAL CIRCLE...STATHAM AND WINDER

EXCESSIVE RUNOFF 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.

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.

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 3424 8335 3421 8341 3415 8337 3403 8342
          3391 8366 3381 8353 3361 8368 3380 8396
          3395 8381 3400 8385 3413 8383 3429 8363
          3439 8366 3449 8355 3445 8340 3432 8341

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 7:04 PM ESTTornado WarningFFCTaylor41 min
Mar 19, 7:12 PM ESTSevere Thunderstorm WarningFFCCoweta33 min
Mar 19, 7:16 PM ESTSevere Thunderstorm WarningFFCCrawford44 min
Mar 19, 7:44 PM ESTTornado WarningFFCTaylor31 min
Mar 19, 7:49 PM ESTSevere Thunderstorm WarningFFCBibb26 min
Mar 19, 7:52 PM ESTSevere Thunderstorm WarningFFCTwiggs23 min
Mar 19, 7:54 PM ESTTornado WarningFFCCrawford, Peach36 min
Mar 19, 7:56 PM ESTTornado WarningFFCCrawford, Peach34 min
Mar 19, 8:05 PM ESTSevere Thunderstorm WarningFFCBibb25 min
Mar 19, 8:13 PM ESTSevere Thunderstorm WarningFFCWilkinson32 min
Mar 19, 8:27 PM ESTSevere Thunderstorm WarningFFCHouston33 min
Mar 19, 8:36 PM ESTSevere Thunderstorm WarningFFCWilkinson54 min
Mar 19, 8:40 PM ESTSevere Thunderstorm WarningFFCWilkinson50 min
Mar 19, 8:45 PM ESTSevere Thunderstorm WarningFFCBaldwin45 min
Mar 19, 8:48 PM ESTSevere Thunderstorm WarningFFCTwiggs27 min
Mar 19, 9:10 PM ESTSevere Thunderstorm WarningFFCHancock50 min
Mar 19, 9:14 PM ESTSevere Thunderstorm WarningFFCTwiggs, Wilkinson31 min
Mar 19, 9:46 PM ESTSevere Thunderstorm WarningFFCWashington, Wilkinson29 min
Mar 19, 10:36 PM ESTSevere Thunderstorm WarningFFCCarroll, Haralson39 min
Mar 19, 11:02 PM ESTSevere Thunderstorm WarningFFCJefferson28 min
Mar 19, 11:44 PM ESTSevere Thunderstorm WarningFFCCoweta31 min
Mar 19, 11:47 PM ESTSevere Thunderstorm WarningFFCWalton28 min
Mar 19, 11:59 PM ESTSevere Thunderstorm WarningFFCFulton31 min
Mar 20, 12:05 AM ESTSevere Thunderstorm WarningFFCGwinnett25 min
Mar 20, 12:12 AM ESTSevere Thunderstorm WarningFFCMeriwether33 min
Mar 20, 12:20 AM ESTTornado WarningFFCWalton25 min
Mar 20, 12:42 AM ESTSevere Thunderstorm WarningFFCTroup33 min
Mar 20, 12:59 AM ESTSevere Thunderstorm WarningFFCMeriwether31 min
Mar 20, 1:10 AM ESTFlash Flood WarningFFCClayton, Coweta, Fayette, Henry, Spalding3 hr
Mar 20, 3:19 AM ESTFlash Flood WarningFFCBanks, Barrow, Jackson, Walton116 min
Mar 20, 4:55 AM ESTFlash Flood WarningFFCClayton, Henry3 hr
Mar 20, 7:07 AM ESTSevere Thunderstorm WarningFFCTelfair23 min
Mar 20, 7:19 AM ESTFlash Flood WarningFFCBleckley, Dodge, Laurens4 hr
Mar 20, 7:25 AM ESTFlash Flood WarningFFCPulaski4 hr
Mar 20, 7:29 AM ESTFlash Flood WarningFFCCrisp, Dooly, Wilcox4 hr
Mar 20, 7:29 AM ESTFlash Flood WarningFFCJohnson4 hr
Mar 20, 8:45 AM ESTFlash Flood WarningFFCBarrow, Jackson, Walton3 hr
Mar 20, 9:48 AM ESTFlash Flood WarningFFCBarrow, Jackson6 hr
Mar 20, 2:08 PM ESTSevere Thunderstorm WarningFFCEmanuel, Treutlen37 min
Mar 20, 2:48 PM ESTSevere Thunderstorm WarningFFCEmanuel27 min
Mar 20, 2:52 PM ESTSevere Thunderstorm WarningFFCTelfair23 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.