Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 37, NWS Atlanta, GA

October 4, 2021Muscogee County, Georgia

NWS Atlanta, GA issued this flash flood warning at Oct 4, 2021, 1:24 PM EDT for Muscogee County, Georgia. It was in force for 6 hr. 3 reports 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
Oct 4, 2021, 1:24 PM EDT (17:24 UTC)
Expired
Oct 4, 2021, 7:30 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

County Muscogee County, GA

The radar

The Maxwell AFB radar (KMXX), 87 km from the middle of the area, began a volume at 17:24 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
Oct 4, 1:30 PM EDTFLASH FLOOD1 Ese Rose Hill, GAEM STATED THAT WRVL HAD FOOTAGE OF WATER SPILLING OVER FROM WERACOBA CREEK IN LAKEBOTTOM PARK.
Oct 4, 1:30 PM EDTFLASH FLOOD1 Wnw Benning Park, GAFLOODING ALONG BULL CREEK IS BEGINNING TO SURROUND NUMEROUS APARTMENT HOMES WITH A FEW INCHES OF WATER.
Oct 4, 2:25 PM EDTFLASH FLOOD1 Se Avondale, GAAPPROX 1 FOOT OF WATER FLOWING OVER CUSSETTA RD NEAR BROWN AVE.

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, 5.4 hours before the alert went out and 105 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 2021-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 443 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 2021-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 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
443 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

353 
WGUS52 KFFC 041724
FFWFFC
GAC215-042330-
/O.NEW.KFFC.FF.W.0037.211004T1724Z-211004T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
124 PM EDT Mon Oct 4 2021

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Muscogee County in west central Georgia...

* Until 730 PM EDT Monday.

* At 124 PM EDT, Doppler radar and automated rain gauges 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 thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Columbus, North Fort Benning, Upatoi, Bibb City, Vista Terrace, 
  Kenwood, Edgewood, Sand Hill, Saint Marys Hills, Highland Park, 
  Benning Hills, Benning Park, Avondale, Custer Road Terrace, Rose 
  Hill, Carter Acres and Battle Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3250 8499 3253 8483 3256 8480 3258 8479
      3258 8469 3256 8470 3256 8467 3252 8469
      3251 8472 3245 8476 3242 8479 3241 8487
      3237 8496 3238 8499 3239 8499 3239 8497
      3241 8498 3242 8496 3244 8497 3245 8500

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 11:01 AM EDTSpecial Weather StatementFFCHarris, Muscogee, Talbot44 min
Oct 4, 11:04 AM EDTFlash Flood WatchFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more4 days
Oct 4, 11:46 AM EDTSpecial Weather StatementFFCMuscogee44 min
Oct 4, 12:16 PM EDTFlash Flood WarningFFCHarris, Muscogee6 hr
Oct 4, 12:46 PM EDTSpecial Weather StatementFFCMuscogee44 min
Oct 4, 4:59 PM EDTFlash Flood WarningFFCBanks, Hall4 hr
Oct 4, 6:51 PM EDTSpecial Weather StatementFFCDawson24 min

Nearby

Flash Flood Warnings in Georgia, 2021Every flash flood warning in 2021

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.