Alert archive / Georgia / Flash Flood Warnings in 2005

Flash Flood Warning 23, NWS Atlanta, GA

July 7, 2005Madison County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 7, 2005, 5:30 AM EDT for Madison 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: Jul 7, 2005, 5:30 AM EDT (09:30 UTC)
Expired: Jul 7, 2005, 8:30 AM EDT
In force: 3 hr
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Madison County, GA

The radar

The Greer radar (KGSP), 127 km from the middle of the area, began a volume at 09:29 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

Birmingham, AL (KBMX), launched 00:00Z, 9.5 hours before the alert went out and 343 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 684 m²/s²
0-3 km storm-relative helicity: 980 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 070936
FFWFFC
GAC195-071230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
530 AM EDT THU JUL 7 2005

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MADISON COUNTY IN NORTHEAST GEORGIA

* UNTIL 830 AM EDT

* AT 525 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 7
  MILES EAST OF POCATALIGO TO 7 MILES SOUTHEAST OF DIAMOND HILL...OR
  ALONG A LINE EXTENDING FROM 8 MILES SOUTHWEST OF ROYSTON TO 11     
  MILES EAST OF ATHENS...MOVING NORTHEAST AT 30 MPH. ESTIMATED
  RAINFALL AMOUNTS OF 4 TO 6 INCHES HAS OCCURRED OVER THE ENTIRE
  COUNTY DURING THE PAST 6 HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEESE
  ...DANIELSVILLE AND COMER.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3416 8344 3400 8323 3404 8301 3424 8312

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

$$

KDF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 8:33 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, DeKalb, Fulton	42 min
Jul 6, 8:48 PM EDT	Tornado Warning	FFC	Pike	12 min
Jul 6, 8:50 PM EDT	Tornado Warning	FFC	Coweta	25 min
Jul 6, 9:08 PM EDT	Flash Flood Warning	FFC	DeKalb, Fulton	3 hr
Jul 6, 9:08 PM EDT	Tornado Warning	FFC	Fayette	28 min
Jul 6, 9:11 PM EDT	Tornado Warning	FFC	Fayette	24 min
Jul 6, 9:36 PM EDT	Tornado Warning	FFC	Clayton, Henry	24 min
Jul 6, 10:02 PM EDT	Severe Thunderstorm Warning	FFC	Henry	23 min
Jul 6, 10:17 PM EDT	Tornado Warning	FFC	Rockdale	39 min
Jul 6, 10:51 PM EDT	Severe Thunderstorm Warning	FFC	Walton	24 min
Jul 6, 10:52 PM EDT	Tornado Warning	FFC	Newton	38 min
Jul 6, 11:24 PM EDT	Severe Thunderstorm Warning	FFC	Walton	36 min
Jul 6, 11:57 PM EDT	Tornado Warning	FFC	Oconee	18 min
Jul 7, 12:24 AM EDT	Flash Flood Warning	FFC	DeKalb, Fulton	3 hr
Jul 7, 2:09 AM EDT	Flash Flood Warning	FFC	Madison	3 hr

Nearby

Flash Flood Warnings in Georgia, 2005 Every flash flood warning in 2005

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.