Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 6, NWS Atlanta, GA

March 6, 2003Forsyth County, Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 6, 2003, 10:14 AM EST for Forsyth 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 6, 2003, 10:14 AM EST (15:14 UTC)
Expired
Mar 6, 2003, 2:15 PM EST
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Forsyth County, GA

The radar

The Atlanta radar (KFFC), 105 km from the middle of the area, began a volume at 15:17 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, 3.2 hours before the alert went out and 102 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 2003-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 2003-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939587897Sfc1 km3 km6 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
607 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
203 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 061516
FFWATL
GAC117-061915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1014 AM EST THU MAR 6 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 215 PM EST

* AT 1012 AM EST...EMERGENCY MANAGEMENT CONTINUES TO REPORT FLOODING 
IN FORSYTH COUNTY. THEREFORE...THE FLASH FLOOD WARNING FROM EARLIER 
THIS MORNING HAS BEEN EXTENDED.

THE MAIN IMPACT IS ALONG NICHOLSON ROAD AND OLD FEDERAL ROAD IN 
FORSYTH.

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.

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.

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 3429 8423 3408 8424 3421 8402 3433 8402

$$
1 follow-up statement
000 
WGUS72 KFFC 061849
FFSATL
GAC117-062245-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
143 PM EST THU MAR 6 2003

...FLASH FLOOD WARNING FOR FORSYTH COUNTY IN NORTH CENTRAL GEORGIA 
HAS BEEN ALLOWED TO EXPIRE...

HEAVY RAINFALL OF UP TO 2 TO 4 INCHES ACROSS THE COUNTY LED TO 
NUMEROUS ROADS BEING FLOODED. THE RAINFALL HAS ENDED AND CONDITIONS 
WILL SLOWLY IMPROVE ACROSS THE COUNTY BY TONIGHT. 

BIG CREEK IN FORSYTH COUNTY WILL BE CRESTING THIS AFTERNOON AND WILL 
BEGIN A SLOW FALL TONIGHT. 

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.

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 3425 8422 3409 8419 3425 8397 3434 8412

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 8:25 PM ESTSevere Thunderstorm WarningFFCJasper, Morgan, Newton35 min
Mar 5, 8:33 PM ESTSevere Thunderstorm WarningFFCHaralson, Polk27 min
Mar 5, 9:48 PM ESTSevere Thunderstorm WarningFFCBanks27 min
Mar 5, 9:58 PM ESTSevere Thunderstorm WarningFFCHeard32 min
Mar 5, 10:04 PM ESTSevere Thunderstorm WarningFFCTroup26 min
Mar 5, 10:09 PM ESTSevere Thunderstorm WarningFFCCoweta, Douglas, Fulton36 min
Mar 5, 10:23 PM ESTSevere Thunderstorm WarningFFCTroup37 min
Mar 5, 10:31 PM ESTSevere Thunderstorm WarningFFCMeriwether44 min
Mar 5, 10:32 PM ESTSevere Thunderstorm WarningFFCClayton, DeKalb, Fayette28 min
Mar 5, 10:34 PM ESTTornado WarningFFCMeriwether, Troup41 min
Mar 5, 10:55 PM ESTSevere Thunderstorm WarningFFCPike, Spalding35 min
Mar 5, 11:08 PM ESTSevere Thunderstorm WarningFFCNewton, Rockdale22 min
Mar 5, 11:15 PM ESTSevere Thunderstorm WarningFFCButts30 min
Mar 5, 11:33 PM ESTSevere Thunderstorm WarningFFCJasper42 min
Mar 5, 11:35 PM ESTSevere Thunderstorm WarningFFCMorgan25 min
Mar 5, 11:56 PM ESTSevere Thunderstorm WarningFFCGreene34 min
Mar 6, 3:10 AM ESTFlash Flood WarningFFCFloyd3 hr
Mar 6, 4:05 AM ESTFlash Flood WarningFFCBartow3 hr
Mar 6, 4:30 AM ESTFlash Flood WarningFFCCherokee, Forsyth3 hr
Mar 6, 4:55 AM ESTFlash Flood WarningFFCHall3 hr
Mar 6, 5:00 AM ESTSevere Thunderstorm WarningFFCGwinnett30 min
Mar 6, 9:10 AM ESTFlash Flood WarningFFCPolk4 hr
Mar 6, 4:39 PM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler36 min
Mar 6, 4:56 PM ESTSevere Thunderstorm WarningFFCMontgomery19 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.