Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 81, NWS Atlanta, GA

June 30, 2003Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 30, 2003, 3:44 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
Jun 30, 2003, 3:44 PM EDT (19:44 UTC)
Expired
Jun 30, 2003, 5:45 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), 53 km from the middle of the area, began a volume at 19:43 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, 7.7 hours before the alert went out and 51 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 2003-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 246 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 2003-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
246 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1196 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
4 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 301945
FFWATL
GAC121-302145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
344 PM EDT MON JUN 30 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 545 PM EDT

* AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN OVER CENTRAL FULTON COUNTY...OR ABOUT 3 MILES WEST   
OF NORTH DRUID HILLS...MOVING NORTHEAST AT 5 MPH.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

SOME CREEKS THAT WILL BE AFFECTED INCLUDE PEACHTREE CREEK.

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 3379 8450 3376 8435 3386 8434 3393 8442

$$
1 follow-up statement
000 
WGUS72 KFFC 302050
FFSATL
GAC121-302145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
448 PM EDT MON JUN 30 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL FULTON COUNTY 
UNTIL 545 PM...

HEAVY RAINFALL HAS DIMINISHED. HOWEVER...EXCESSIVE RUNOFF FROM THIS 
STORM HAS CAUSED FLASH FLOODING OF SMALL CREEKS AND STREAMS...URBAN 
AREAS...HIGHWAYS...STREETS AND UNDERPASSES. REPORTS RECEIVED BY THE 
PUBLIC INDICATE ROADS WITH UP TO 2 FEET OF WATER ON THEM AROUND 4 PM 
NEAR GEORGIA TECH UNIVERSITY.

AT 445 PM...PEACHTREE CREEK IN ATLANTA WAS NEAR 15 FEET. THE 
FORECAST FOR PEACHTREE CALLS FOR THE CREEK TO CREST NEAR FLOOD STAGE 
BY 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 SPORT UTILITY VEHICLES 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 3379 8451 3375 8434 3386 8433 3395 8441

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 3:05 PM EDTSevere Thunderstorm WarningFFCMonroe40 min
Jun 30, 3:27 PM EDTSevere Thunderstorm WarningFFCBibb, Crawford33 min
Jun 30, 4:17 PM EDTSevere Thunderstorm WarningFFCLaurens43 min
Jun 30, 5:32 PM EDTFlash Flood WarningFFCCarroll, Douglas58 min
Jun 30, 7:09 PM EDTFlash Flood WarningFFCHarris66 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.