Alert archive / Georgia / Flash Flood Warnings in 2022

Flash Flood Warning 40, NWS Atlanta, GA

September 4, 20224 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Sep 4, 2022, 7:00 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
Sep 4, 2022, 7:00 PM EDT (23:00 UTC)
Expired
Sep 5, 2022, 1:00 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Marion County, GA, Schley County, GA, Sumter County, GA, Webster County, GA

The radar

The Robins AFB radar (KJGX), 121 km from the middle of the area, began a volume at 23:02 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
Sep 4, 8:27 PM EDTFLASH FLOODPreston, GAFLOODING ON SR 27 BOTH DIRECTIONS AT CEMETARY RD WITH ALL LANES CLOSED.

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, 11.0 hours before the alert went out and 127 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 2022-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 868 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 2022-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
868 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
536 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

123 
WGUS52 KFFC 042300
FFWFFC
GAC197-249-261-307-050500-
/O.NEW.KFFC.FF.W.0040.220904T2300Z-220905T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
700 PM EDT Sun Sep 4 2022

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Southern Marion County in west central Georgia...
  Southwestern Schley County in west central Georgia...
  Northwestern Sumter County in west central Georgia...
  Eastern Webster County in west central Georgia...

* Until 100 AM EDT.

* At 700 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by training of thunderstorms and
           locally heavy rainfall.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Buena Vista, Preston, Plains, Putnam, Brantley, Draneville, 
  Friendship, Church Hill, Doyle, Walls Crossing, Dumas, Zellobee 
  and Tazewell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3235 8466 3244 8446 3216 8432 3206 8426
      3199 8444 3197 8450 3230 8466 3231 8466
      3234 8466

FLASH FLOOD...RADAR INDICATED

$$
1 follow-up statement
611 
WGUS72 KFFC 050457
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
1257 AM EDT Mon Sep 5 2022

GAC197-249-261-307-050507-
/O.EXP.KFFC.FF.W.0040.000000T0000Z-220905T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion GA-Schley GA-Sumter GA-Webster GA-
1257 AM EDT Mon Sep 5 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 1 AM EDT EARLY THIS MORNING 
FOR SOUTHERN MARION, SOUTHWESTERN SCHLEY, NORTHWESTERN SUMTER AND 
EASTERN WEBSTER COUNTIES...

Flood waters have receded and the heavy rain has ended, however 
periods of light to moderate rain will continue overnight. Flash 
flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

LAT...LON 3235 8466 3244 8446 3216 8432 3206 8426
      3199 8444 3197 8450 3230 8466 3231 8466
      3234 8466

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 4:58 AM EDTFlash Flood Warning EmergencyFFCChattooga18 hr
Sep 4, 6:55 AM EDTFlash Flood WarningFFCChattooga, Floyd16 hr
Sep 4, 8:58 AM EDTRiver Flood WarningFFCChattooga24 hr
Sep 4, 9:26 AM EDTFlash Flood WarningFFCChattooga, Floyd6 hr
Sep 4, 10:30 AM EDTFlash Flood WarningFFCFloyd6 hr
Sep 4, 1:03 PM EDTRiver Flood WarningFFCFloyd12 hr
Sep 4, 2:48 PM EDTFlash Flood WarningFFCChattooga, Dade, Walker3 hr
Sep 4, 3:31 PM EDTFlash Flood WarningFFCChattooga, Floyd6 hr
Sep 4, 5:00 PM EDTSpecial Weather StatementFFCTroup60 min
Sep 4, 5:07 PM EDTFlash Flood WarningFFCTroup6 hr
Sep 4, 6:28 PM EDTFlash Flood WarningFFCMuscogee6 hr
Sep 4, 6:49 PM EDTFlood WatchFFCBanks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 43 more25 hr

Nearby

Flash Flood Warnings in Georgia, 2022Every flash flood warning in 2022

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.