Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 14, NWS Atlanta, GA

March 20, 2003Johnson County, Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 20, 2003, 7:29 AM EST for Johnson 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 outline as issued.

The facts

Issued
Mar 20, 2003, 7:29 AM EST (12:29 UTC)
Expired
Mar 20, 2003, 11:30 AM EST
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Johnson County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.5 hours before the alert went out and 185 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 2003-03-20Temperature 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°0°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 2003-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939587897117136Sfc1 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
474 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
106 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 201230
FFWATL
GAC167-201630-

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

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JOHNSON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 1130 AM EST

* AT 723 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN OVER JOHNSON COUNTY. RAINFALL ESTIMATES OF UP TO 3 
  INCHES HAVE BEEN INDICATED BY RADAR. 

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.

LAT...LON 3273 8285 3260 8263 3272 8247 3281 8257

$$
2 follow-up statements
000 
WGUS72 KFFC 201410
FFSATL
GAC023-081-091-093-167-175-235-315-201615-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
900 AM EST THU MAR 20 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR DOOLY...CRISP...
WILCOX...PULASKI...BLECKLEY...DODGE...LAURENS...AND JOHNSON 
COUNTIES...

EXCESSIVE RUNOFF FROM HEAVY RAINS EARLIER THIS MORNING WILL CONTINUE 
TO CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...ROADS...AND 
FARMLAND AND WOODLANDS ALONG THE BANKS OF CREEKS AND STREAMS.

SOME REPORTS OF FLOODING INCLUDE...NUMEROUS ROADS CLOSED IN CRISP 
COUNTY. HIGHWAY 341 SOUTH...HIGHWAY 129 SOUTH AND HIGHWAY 26 EAST 
HAVE WATER ACROSS THE ROAD IN PULASKI COUNTY. HIGHWAYS 19 AND 441 
SOUTH...AND VARIOUS SECONDARY ROADS ARE CLOSED IN LAURENS COUNTY. 
NUMEROUS ROADS WITH WATER FLOWING ACROSS THE ROADWAY IN BLECKLEY AND 
DODGE COUNTIES.

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 3258 8324 3271 8295 3280 8280 3283 8253
          3275 8244 3249 8267 3230 8274 3184 8324
          3185 8394 3218 8402 3229 8389 3226 8362
          3244 8347

$$
000 
WGUS72 KFFC 201633
FFSATL
GAC023-081-091-093-167-175-235-315-201730-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1130 AM EST THU MAR 20 2003

...THE FLASH FLOOD WARNING FOR DOOLY...CRISP...WILCOX...PULASKI...
BLECKLEY...DODGE...LAURENS...AND JOHNSON COUNTIES HAS EXPIRED...

FLASH FLOODING FROM EARLY MORNING HEAVY RAINFALL HAS BEGUN TO 
SUBSIDE. SOME ROADS REMAIN CLOSED DUE TO DAMAGE FROM THE FLOODS OR 
FROM SOME LINGERING WATER OVER THE ROAD. WITH RAINFALL ENDED IN THE 
AREA FOR THE TIME BEING...AND WITH FLOOD WATERS SUBSIDING...THE 
FLASH FLOOD WARNINGS HAVE BEEN ALLOWED TO EXPIRE.



LAT...LON 3191 8320 3186 8358 3187 8392 3225 8392

$$

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, 5:30 AM ESTFlash Flood WarningFFCBanks, Barrow, Jackson, Walton4 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, 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.