Alert archive / Georgia / Flash Flood Warnings in 2013

Flash Flood Warning 27, NWS Atlanta, GA

June 30, 2013Marion County, Schley County, Taylor County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 30, 2013, 8:27 PM EDT for Marion County, Schley County, Taylor County, Georgia. It was in force for 4 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
Jun 30, 2013, 8:27 PM EDT (00:27 UTC)
Expired
Jul 1, 2013, 12:30 AM EDT
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Marion County, GA, Schley County, GA, Taylor County, GA

The radar

The Robins AFB radar (KJGX), 103 km from the middle of the area, began a volume at 00:31 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
Jun 30, 10:00 PM EDTFLASH FLOODTazewell, GASEVERAL ROADS IN THE EASTERN PART OF MARION COUNTY WERE FLOODED WITH SEVERAL INCHES OF FLOWING WATER.

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 00:00Z, 0.5 hours before the alert went out and 109 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 00:00Z on 2013-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1396 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2013-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.19395878Sfc1 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
1396 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
930 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

473 
WGUS52 KFFC 010027
FFWFFC
GAC197-249-269-010430-
/O.NEW.KFFC.FF.W.0027.130701T0027Z-130701T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
827 PM EDT SUN JUN 30 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MARION COUNTY IN WEST CENTRAL GEORGIA
  NORTHWESTERN SCHLEY COUNTY IN WEST CENTRAL GEORGIA
  SOUTHWESTERN TAYLOR COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 1230 AM EDT

* AT 819 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. UP TO 3.5 
INCHES OF RAIN HAS ALREADY BEEN ESTIMATED BY THE DOPPLER RADAR ALONG 
THE MARION AND SCHLEY COUNTY LINE JUST EAST OF TAZEWELL. AN ADDITION 
1 TO 2 INCHES OF RAIN IS POSSIBLE AS THIS STORM SHOWS LITTLE 
MOVEMENT. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CEDAR
  CREEK...FIVE POINTS...TAZEWELL AND RUPERT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3247 8447 3245 8426 3227 8427 3229 8450

$$
1 follow-up statement
178 
WGUS72 KFFC 010337
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1137 PM EDT SUN JUN 30 2013

GAC197-249-269-010347-
/O.CAN.KFFC.FF.W.0027.000000T0000Z-130701T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCHLEY GA-MARION GA-TAYLOR GA-
1137 PM EDT SUN JUN 30 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN
TAYLOR...EAST CENTRAL MARION AND NORTHWESTERN SCHLEY COUNTIES...

THE STORM THAT PRODUCED THE VERY HEAVY RAINFALL HAS MOVED WELL EAST 
OF THE AREA. RUNOFF FROM THIS STORM HAS DIMINISHED AND NO LONGER 
POSES A THREAT OF PRODUCING FLASH 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. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

LAT...LON 3247 8447 3245 8426 3227 8427 3229 8450

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:17 PM EDTSpecial Weather StatementFFCMarion, Schley, Taylor58 min
Jun 30, 9:29 PM EDTSpecial Weather StatementFFCMacon, Peach46 min
Jun 30, 10:57 PM EDTSpecial Weather StatementFFCMontgomery63 min
Jul 1, 1:03 PM EDTSpecial Weather StatementFFCCherokee27 min
Jul 1, 1:14 PM EDTSpecial Weather StatementFFCPickens31 min
Jul 1, 1:26 PM EDTFlash Flood WatchFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more4 days
Jul 1, 2:11 PM EDTSpecial Weather StatementFFCPickens34 min
Jul 1, 3:33 PM EDTSpecial Weather StatementFFCFayette27 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.