Alert archive / Georgia / Flash Flood Warnings in 2013

Flash Flood Warning 96, NWS Atlanta, GA

August 23, 20134 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Aug 23, 2013, 7:10 PM EDT for 4 counties in Georgia. It was in force for 6 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
Aug 23, 2013, 7:10 PM EDT (23:10 UTC)
Expired
Aug 24, 2013, 1:00 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Emanuel County, GA, Jefferson County, GA, Johnson County, GA, Washington County, GA

The radar

The Robins AFB radar (KJGX), 75 km from the middle of the area, began a volume at 23:09 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

TimeReportWhereRemark
Aug 23, 7:30 PM EDTFLASH FLOOD3 Nne Pringle, GATHE WASHINGTON COUNTY 911 CENTER REPORTED WATER RUNNING OVER THE ROAD AT BARTOW DUBLIN ROAD AND NEW BETHEL ROAD AND HWY 24E NEAR THE JEFFERSON COUNTY LINE.

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, 11.2 hours before the alert went out and 190 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 2013-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 984 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 2013-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
984 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
788 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-12 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.

097 
WGUS52 KFFC 232310
FFWFFC
GAC107-163-167-303-240500-
/O.NEW.KFFC.FF.W.0096.130823T2310Z-130824T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
710 PM EDT FRI AUG 23 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL EMANUEL COUNTY IN EAST CENTRAL GEORGIA
  SOUTHWESTERN JEFFERSON COUNTY IN EAST CENTRAL GEORGIA
  EASTERN JOHNSON COUNTY IN EAST CENTRAL GEORGIA
  SOUTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 100 AM EDT

* AT 705 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT TWO TO FOUR INCHES OF RAIN HAS FALLEN ALONG A LINE FROM       
  DAVISBORO TO RIDDLEVILLE TO MEEKS. ADDITIONAL RAINFALL AMOUNTS OF  
  ONE TO TWO INCHES ARE POSSIBLE. THIS CLUSTER OF STORMS IS NEARLY   
  STATIONARY ACROSS THE AREA. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
DAVISBORO...MEEKS...NEW HOME...PRINGLE...AND RIDDLEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

&&

LAT...LON 3301 8251 3282 8246 3259 8241 3257 8264
      3279 8269 3299 8273

$$
2 follow-up statements
726 
WGUS72 KFFC 240125
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
925 PM EDT FRI AUG 23 2013

GAC107-163-167-303-240500-
/O.CON.KFFC.FF.W.0096.000000T0000Z-130824T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON GA-JOHNSON GA-EMANUEL GA-JEFFERSON GA-
925 PM EDT FRI AUG 23 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR
SOUTHWESTERN JEFFERSON...WEST CENTRAL EMANUEL...EASTERN JOHNSON AND
SOUTHEASTERN WASHINGTON COUNTIES...

AS OF 918 PM EDT...TWO TO FOUR INCHES OF RAIN HAD FALLEN ACROSS AN 
AREA FROM DAVISBORO TO SOUTH OF NEW HOME. ANOTHER INCH OF RAIN IS 
POSSIBLE ACROSS THE AREA. 

THE WASHINGTON COUNTY 911 CENTER REPORTED WATER RUNNING OVER THE 
ROAD AT BARTOW DUBLIN ROAD AND NEW BETHEL AND ON HWY 24E NEAR THE 
JEFFERSON/WASHINGTON COUNTY LINE. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RIDDLEVILLE
AND DAVISBORO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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. MOVE TO HIGHER GROUND.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

&&

LAT...LON 3301 8251 3282 8246 3259 8241 3257 8264
      3279 8269 3299 8273

$$
106 
WGUS72 KFFC 240313
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1113 PM EDT FRI AUG 23 2013

GAC107-163-167-303-240320-
/O.CAN.KFFC.FF.W.0096.000000T0000Z-130824T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON GA-JOHNSON GA-EMANUEL GA-JEFFERSON GA-
1113 PM EDT FRI AUG 23 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN
JEFFERSON...WEST CENTRAL EMANUEL...EASTERN JOHNSON AND SOUTHEASTERN
WASHINGTON COUNTIES...

THE RAIN HAS ENDED ACROSS THE AREA AND THE CREEKS AND RIVERS HAVE 
HAD TIME TO RECEDE...THUS THE FLASH FLOOD WARNING HAS BEEN 
CANCELLED. 

IF YOU SAW SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

LAT...LON 3301 8251 3282 8246 3259 8241 3257 8264
      3279 8269 3299 8273

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 8:26 PM EDTFlash Flood WarningFFCCarroll, Haralson6 hr
Aug 23, 5:43 PM EDTSpecial Weather StatementFFCJefferson47 min
Aug 23, 6:31 PM EDTSpecial Weather StatementFFCMuscogee29 min
Aug 23, 6:34 PM EDTSevere Thunderstorm WarningFFCBibb, Crawford, Houston, Peach41 min
Aug 23, 6:57 PM EDTSevere Thunderstorm WarningFFCBibb, Houston, Twiggs48 min
Aug 23, 6:59 PM EDTSpecial Weather StatementFFCHarris61 min
Aug 23, 7:00 PM EDTSpecial Weather StatementFFCTalbot30 min
Aug 23, 7:01 PM EDTSpecial Weather StatementFFCJohnson29 min
Aug 23, 7:12 PM EDTSpecial Weather StatementFFCJohnson, Washington33 min
Aug 23, 7:34 PM EDTSpecial Weather StatementFFCWilkinson26 min
Aug 23, 7:37 PM EDTSevere Thunderstorm WarningFFCJohnson, Laurens, Washington, Wilkinson38 min
Aug 23, 7:38 PM EDTFlash Flood WarningFFCBibb, Crawford, Houston, Peach, Twiggs4 hr
Aug 23, 7:46 PM EDTSpecial Weather StatementFFCCatoosa, Dade, Walker59 min
Aug 23, 7:49 PM EDTSpecial Weather StatementFFCPeach26 min

Nearby

Flash Flood Warnings in Georgia, 2013Every flash flood warning in 2013

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.