Alert archive / Georgia / Flash Flood Warnings in 2009

Flash Flood Warning 3, NWS Atlanta, GA

May 16, 2009Heard County, Georgia

NWS Atlanta, GA issued this flash flood warning at May 16, 2009, 11:44 AM EDT for Heard County, Georgia. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 16, 2009, 11:44 AM EDT (15:44 UTC)
Expired: May 16, 2009, 2:30 PM EDT
In force: 3 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

County Heard County, GA

The radar

The Atlanta radar (KFFC), 46 km from the middle of the area, began a volume at 15:45 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.

What was reported inside it

Time	Report	Where	Remark
May 16, 11:48 AM EDT	FLASH FLOOD	Waresville, GA	SIX ROADS FLOODED AROUND THE COUNTY. AT LEAST SIX INCHES OF WATER ON SEVERAL ROADS IN THE WARESVILLE AREA. WATER UP TO A BRIDGE ON FIVE NOTCH ROAD NEAR NUT ROAD. WATER IS ALSO UP TO THE DOOR OF A MOBILE HOME IN THE VICINITY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.7 hours before the alert went out and 52 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: 588 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 509 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 37 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 161544
FFWFFC
GAC149-161830-
/O.NEW.KFFC.FF.W.0003.090516T1544Z-090516T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1144 AM EDT SAT MAY 16 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HEARD COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 230 PM EDT

* AT 1143 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  A CLUSTER OF SHOWERS AND THUNDERSTORMS THAT WERE TO TRAINING       
  ACROSS MAINLY THE CENTRAL AND SOUTHERN PORTIONS OF HEARD COUNTY.   
  RAINFALL AMOUNTS OF 1 TO 2 INCHES HAVE ALREADY BEEN OBSERVED.      
  THESE STORMS ARE CONTINUING TO REDEVELOP WEST OF THE COUNTY AND    
  TRACK EASTWARD ACROSS HEARD COUNTY AT 10 MPH. THE SLOW MOVEMENT    
  WILL RESULT IN PERIODS OF HEAVY RAIN OVER THE NEXT COUPLE OF       
  HOURS.  

* SOME LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO       
  WARESVILLE... TEXAS... FRANKLIN... GLENN... CENTRALHATCHEE AND     
  CORINTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA THROUGH 230 PM EDT.

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

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

&&

LAT...LON 3342 8501 3328 8495 3328 8494 3327 8493
      3325 8494 3322 8492 3319 8504 3318 8506
      3319 8511 3316 8512 3313 8523 3337 8528

$$

1 follow-up statement

000 
WGUS72 KFFC 161829
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
229 PM EDT SAT MAY 16 2009

GAC149-161838-
/O.EXP.KFFC.FF.W.0003.000000T0000Z-090516T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HEARD GA-
229 PM EDT SAT MAY 16 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 PM EDT FOR HEARD
COUNTY...

AT 225 PM EDT...THE HEARD COUNTY 911 CENTER REPORTED ONLY MINOR 
FLOODING ALONG A COUPLE DIRT ROADS REMAINED...AND THESE AREAS WERE 
QUICKLY IMPROVING. ALTHOUGH ADDITIONAL RAINFALL IS EXPECTED OFF AND 
ON THROUGHOUT THE AFTERNOON... THE LONG TERM TRAINING OF STORMS IS 
NOT EXPECTED OVER THE NEXT FEW HOURS. THEREFORE... THE FLASH FLOOD 
WARNING WILL BE ALLOWED TO EXPIRE AT 230 PM EDT. 


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

LAT...LON 3342 8501 3328 8495 3328 8494 3327 8493
      3325 8494 3322 8492 3319 8504 3318 8506
      3319 8511 3316 8512 3313 8523 3337 8528

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 8:16 PM EDT	Severe Thunderstorm Warning	FFC	White	44 min
May 15, 8:24 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Douglas	51 min
May 15, 8:26 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	34 min
May 15, 8:41 PM EDT	Severe Thunderstorm Warning	FFC	Murray, Whitfield	30 min
May 15, 8:54 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Cobb	36 min
May 15, 9:20 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee	40 min
May 15, 9:26 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Haralson, Paulding	34 min
May 16, 1:14 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Wilcox	31 min
May 16, 1:40 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Telfair	50 min
May 16, 1:47 PM EDT	Severe Thunderstorm Warning	FFC	Pulaski, Wilcox	43 min
May 16, 3:00 PM EDT	Severe Thunderstorm Warning	FFC	Sumter	45 min
May 16, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon	25 min
May 16, 4:42 PM EDT	Severe Thunderstorm Warning	FFC	Warren	48 min
May 16, 7:20 PM EDT	Severe Thunderstorm Warning	FFC	Muscogee	25 min

Nearby

Flash Flood Warnings in Georgia, 2009 Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.