Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 21, NWS Tallahassee, FL

July 27, 2021Dougherty County, Lee County, Worth County, Georgia

NWS Tallahassee, FL issued this flash flood warning at Jul 27, 2021, 6:49 PM EDT for Dougherty County, Lee County, Worth County, Georgia. It was in force for 116 min. 9 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
Jul 27, 2021, 6:49 PM EDT (22:49 UTC)
Expired
Jul 27, 2021, 8:45 PM EDT
In force
116 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

Counties Dougherty County, GA, Lee County, GA, Worth County, GA

The radar

The Robins AFB radar (KJGX), 122 km from the middle of the area, began a volume at 22:50 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
Jul 27, 7:20 PM EDTFLASH FLOODEast Albany, GAREPORT OF A CALL STALLED IN FLOODED AREA NEAR 100 BLOCK OF COLLINS STREET.
Jul 27, 7:20 PM EDTFLASH FLOODEast Albany, GAREPORT OF A CAR STALLED IN FLOODED AREA NEAR 100 BLOCK OF COLLINS STREET.
Jul 27, 7:52 PM EDTFLASH FLOODStocks, GAA COUPLE OF ROADS IN SE LEE COUNTY HAD WATER OVER THEM DURING A 30 MINUTE PERIOD OF HEAVY RAINFALL. FLOODING HAS SINCE ENDED.
Jul 27, 8:00 PM EDTFLASH FLOOD1 Ene Albany, GAFLOODING REPORTED AT THE 200 BLOCK OF WEST TIFT.
Jul 27, 8:00 PM EDTFLASH FLOOD1 E Radium Springs, GAFLOODING REPORTED AT THE 2500 BLOCK OF BETTYS DRIVE.
Jul 27, 8:00 PM EDTFLASH FLOOD1 Ne Radium Springs, GAFLOODING REPORTED AT THE 400 BLOCK OF REDBUD.
Jul 27, 8:00 PM EDTFLASH FLOOD1 Nnw East Albany, GAFLOODING REPORTED AT THE 1100 BLOCK OF DON CUTLER SR. DRIVE.
Jul 27, 8:00 PM EDTFLASH FLOODEast Albany, GAFLOODING REPORTED AT THE 1100-1200 BLOCK OF CAMPBELL STREET.
Jul 27, 8:00 PM EDTFLASH FLOODTurner City, GAFLOODING REPORTED AT THE 1500 BLOCK OF MALONE DRIVE.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.8 hours before the alert went out and 150 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, Tallahassee Rgnl, FL at 12:00Z on 2021-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1615 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, Tallahassee Rgnl, FL at 12:00Z on 2021-07-27The 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
1615 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

587 
WGUS52 KTAE 272249
FFWTAE
GAC095-177-321-280045-
/O.NEW.KTAE.FF.W.0021.210727T2249Z-210728T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
649 PM EDT Tue Jul 27 2021

The National Weather Service in Tallahassee has issued a

* Flash Flood Warning for...
  Northwestern Worth County in south central Georgia...
  Eastern Dougherty County in southwestern Georgia...
  Lee County in southwestern Georgia...

* Until 845 PM EDT.

* At 649 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2 and 3 inches of rain have fallen in the last 1 Hour. The 
  expected rainfall rate is 3 to 4 inches in 1 hour. Additional 
  rainfall amounts of 2 to 3 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...
  Leesburg, Albany, Putney, Turner City, East Albany, Marine Corps 
  Logistics Base, Stocks, Philema, Mossy Dell, Century, Forrester, 
  Starksville, Palmyra, Oakfield, Acree, South Albany, Pecan City, 
  Radium Springs, Williamsburg and Chokee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3167 8421 3191 8415 3191 8392 3190 8393
      3186 8393 3186 8394 3185 8394 3178 8392
      3176 8394 3167 8394 3147 8398 3144 8400
      3144 8418

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...3-4 INCHES IN 1 HOUR

$$

WD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 27, 5:48 PM EDTAreal Flood AdvisoryTAEBaker, Calhoun, Clay, Early, Miller117 min
Jul 27, 6:14 PM EDTSpecial Weather StatementTAEWorth31 min
Jul 27, 6:26 PM EDTAreal Flood AdvisoryTAECalhoun, Dougherty, Worth109 min
Jul 27, 6:56 PM EDTSpecial Weather StatementTAEColquitt, Decatur, Grady, Mitchell49 min
Jul 27, 7:34 PM EDTSpecial Weather StatementTAEBrooks, Colquitt, Cook, Lowndes56 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.