Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 102, NWS Atlanta, GA

July 13, 2003Polk County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 13, 2003, 5:30 AM EDT for Polk 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
Jul 13, 2003, 5:30 AM EDT (09:30 UTC)
Expired
Jul 13, 2003, 7:30 AM EDT
In force
2 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Polk County, GA

The radar

The Atlanta radar (KFFC), 100 km from the middle of the area, began a volume at 09:34 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, 9.5 hours before the alert went out and 104 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 2003-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1559 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 2003-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.193958Sfc1 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
1559 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1126 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 130930
FFWATL
GAC233-131130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
530 AM EDT SUN JUL 13 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN POLK COUNTY IN NORTHWEST GEORGIA

* UNTIL 730 AM EDT

* AT 529 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 3 MILES SOUTH OF CEDARTOWN...MOVING SOUTHEAST AT 20
  MPH.

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 TOLL FREE 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3407 8541 3391 8536 3392 8518 3409 8521

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 8:46 PM EDTSevere Thunderstorm WarningFFCMeriwether29 min
Jul 12, 10:15 PM EDTSevere Thunderstorm WarningFFCMeriwether30 min
Jul 12, 11:27 PM EDTSevere Thunderstorm WarningFFCBartow33 min
Jul 13, 12:10 AM EDTSevere Thunderstorm WarningFFCBartow20 min
Jul 13, 1:47 AM EDTSevere Thunderstorm WarningFFCFloyd, Polk28 min
Jul 13, 2:02 AM EDTSevere Thunderstorm WarningFFCPaulding28 min
Jul 13, 2:29 AM EDTSevere Thunderstorm WarningFFCPaulding31 min
Jul 13, 2:45 AM EDTFlash Flood WarningFFCPaulding2 hr
Jul 13, 3:03 AM EDTFlash Flood WarningFFCGordon117 min
Jul 13, 3:51 AM EDTFlash Flood WarningFFCFloyd114 min
Jul 13, 4:25 AM EDTFlash Flood WarningFFCBartow3 hr
Jul 13, 5:09 AM EDTFlash Flood WarningFFCCherokee2 hr
Jul 13, 12:48 PM EDTSevere Thunderstorm WarningFFCLamar, Monroe27 min
Jul 13, 1:20 PM EDTSevere Thunderstorm WarningFFCBibb, Monroe25 min
Jul 13, 1:45 PM EDTSevere Thunderstorm WarningFFCBibb30 min
Jul 13, 3:35 PM EDTSevere Thunderstorm WarningFFCHall40 min
Jul 13, 4:50 PM EDTFlash Flood WarningFFCMarion85 min
Jul 13, 5:17 PM EDTSevere Thunderstorm WarningFFCChattahoochee28 min
Jul 13, 6:00 PM EDTSevere Thunderstorm WarningFFCUnion30 min
Jul 13, 6:04 PM EDTFlash Flood WarningFFCChattahoochee, Muscogee86 min
Jul 13, 6:07 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield23 min
Jul 13, 6:11 PM EDTSevere Thunderstorm WarningFFCCoweta, Emanuel, Fulton34 min
Jul 13, 6:22 PM EDTSevere Thunderstorm WarningFFCCatoosa23 min
Jul 13, 6:39 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield36 min
Jul 13, 6:42 PM EDTSevere Thunderstorm WarningFFCEmanuel33 min
Jul 13, 6:50 PM EDTSevere Thunderstorm WarningFFCGilmer55 min
Jul 13, 6:54 PM EDTSevere Thunderstorm WarningFFCCatoosa36 min
Jul 13, 7:07 PM EDTFlash Flood WarningFFCCatoosa, Whitfield113 min
Jul 13, 7:10 PM EDTFlash Flood WarningFFCWebster2 hr
Jul 13, 7:10 PM EDTSevere Thunderstorm WarningFFCGordon, Pickens50 min
Jul 13, 7:16 PM EDTFlash Flood WarningFFCMurray119 min
Jul 13, 7:22 PM EDTFlash Flood WarningFFCGilmer113 min
Jul 13, 7:34 PM EDTTornado WarningFFCPickens26 min
Jul 13, 7:40 PM EDTSevere Thunderstorm WarningFFCBartow, Gordon35 min
Jul 13, 7:44 PM EDTSevere Thunderstorm WarningFFCCherokee46 min
Jul 13, 7:50 PM EDTFlash Flood WarningFFCBartow, Cherokee, Floyd, Gordon, Pickens115 min
Jul 13, 7:59 PM EDTFlash Flood WarningFFCEmanuel, Johnson106 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.