Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 84, NWS Atlanta, GA

July 1, 2003Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 1, 2003, 3:54 PM EDT for Fulton 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 1, 2003, 3:54 PM EDT (19:54 UTC)
Expired
Jul 1, 2003, 6:00 PM EDT
In force
2 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Fulton County, GA

The radar

The Atlanta radar (KFFC), 52 km from the middle of the area, began a volume at 19:54 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 12:00Z, 7.9 hours before the alert went out and 50 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 2003-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 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 12:00Z on 2003-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 267 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
147 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
267 m²/s²
0-3 km storm-relative helicity
356 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 011955
FFWATL
GAC121-012200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
354 PM EDT TUE JUL 1 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 600 PM EDT

* AT 349 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN OVER ATLANTA...MOVING NORTHEAST AT 30
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE SANDY SPRINGS

CREEKS THAT WILL BE AFFECTED INCLUDE PEACHTREE CREEK...PROCTOR 
CREEK...AND NANCY CREEK. PEACHTREE CREEK IS FORECAST TO RISE TO NEAR 
17 FEET BETWEEN 5 AND 6 PM.

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.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. TWO
FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES...INCLUDING SUVS
AND PICKUPS. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.

LAT...LON 3374 8457 3368 8437 3404 8425 3388 8445

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 3:58 PM EDTTornado WarningFFCJasper17 min
Jul 1, 4:23 PM EDTFlash Flood WarningFFCDeKalb2 hr
Jul 1, 5:17 PM EDTFlash Flood WarningFFCJasper118 min
Jul 1, 5:21 PM EDTFlash Flood WarningFFCWalton114 min
Jul 1, 5:23 PM EDTTornado WarningFFCHancock22 min
Jul 1, 5:32 PM EDTFlash Flood WarningFFCGreene3 hr
Jul 1, 6:18 PM EDTFlash Flood WarningFFCDeKalb, Fulton3 hr
Jul 1, 6:44 PM EDTFlash Flood WarningFFCGwinnett2 hr
Jul 1, 7:09 PM EDTFlash Flood WarningFFCBarrow, Jackson4 hr
Jul 1, 7:37 PM EDTFlash Flood WarningFFCClarke3 hr

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.