Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 59, NWS Atlanta, GA

May 16, 2003Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at May 16, 2003, 3:28 AM EDT for Fulton County, Georgia. It was in force for 3 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: May 16, 2003, 3:28 AM EDT (07:28 UTC)
Expired: May 16, 2003, 6:00 AM EDT
In force: 3 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), 49 km from the middle of the area, began a volume at 07:28 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, 7.5 hours before the alert went out and 47 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1257 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 829 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 160735
FFWATL
GAC121-161000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
328 AM EDT FRI MAY 16 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 600 AM EDT

* AT 330 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A CLUSTER OF THUNDERSTORMS...WITH VERY HEAVY RAIN...OVER THE
  BUCKHEAD AREA...MOVING EAST AT 30 MPH.

THUNDERSTORMS HAVE PERSISTED OVER THIS AREA SINCE MIDNIGHT...AND
RAINFALL AMOUNTS OF 1.5 TO 3.0 INCHES HAVE OCCURRED ACROSS BUCKHEAD 
AND SURROUNDING AREAS OF NORTH FULTON COUNTY. THIS HAS RESULTED IN 
FLOODING OF PEACHTREE AND NANCY CREEK.

FLASH FLOODING OF PEACHTREE...NANCY...AND OTHER CREEKS AND STREAMS
IN THE AREA...ALONG WITH SOME HIGHWAYS...STREETS...UNDERPASSES AND
OTHER DRAINAGE AREAS IS LIKELY DURING THE NEXT FEW HOURS. FLOODING OF
SOME ROADS IN THIS AREA HAS ALREADY BEEN REPORTED BY LAW ENFORCEMENT
OFFICIALS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.
THE WATER DEPTH MAY BE TOO GREAT FOR YOU TO PROCEED SAFELY.

LAT...LON 3386 8442 3370 8450 3366 8435 3385 8435

$$

RAB

1 follow-up statement

000 
WGUS72 KFFC 160846
FFSATL
GAC121-161015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
416 AM EDT FRI MAY 16 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL FULTON COUNTY 
UNTIL 6 AM EDT...

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL FULTON COUNTY 
UNTIL 6 AM EDT. EXCESSIVE RUNOFF FROM HEAVY RAINFALL OF 1.5 TO 3.0 
INCHES FROM THUNDERSTORMS SINCE MIDNIGHT HAS RESULTED IN FLASH 
FLOODING OF PEACHTREE AND NANCY CREEKS IN THE BUCKHEAD AREA.  THIS 
FLOODING WILL CONTINUE THROUGH 6 AM EDT.

AT 400 AM EDT...THE STAGE ON PEACHTREE CREEK NEAR CROSS CREEK DRIVE 
WAS 17.6 FEET.  FLOOD STAGE IS 17.0 FEET.  THE CREEK IS EXPECTED TO 
CREST BETWEEN 18.0 AND 19.0 FEET AROUND 6 AM EDT THIS MORNING.

FLOODING OF ROADS NEAR PEACHTREE CREEK AND ALSO NANCY CREEK WILL BE 
LIKELY FOR THE NEXT SEVERAL HOURS. SOME HOMES AND BUSINESS IN THIS 
AREA MAY ALSO BE AFFECTED.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE 
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT FOR YOU TO PROCEED SAFELY.

LAT...LON 3386 8442 3370 8450 3366 8435 3385 8435

$$

RAB

Nearby

Flash Flood Warnings in Georgia, 2003 Every 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.