Alert archive / Georgia / Flash Flood Warnings in 2018

Flash Flood Warning 8, NWS Tallahassee, FL

July 15, 2018Dougherty County, Lee County, Worth County, Georgia

NWS Tallahassee, FL issued this flash flood warning at Jul 15, 2018, 4:30 PM EDT for Dougherty County, Lee County, Worth County, Georgia. It was in force for 93 min. 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: Jul 15, 2018, 4:30 PM EDT (20:30 UTC)
Expired: Jul 15, 2018, 6:03 PM EDT
In force: 93 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 Moody AFB radar (KVAX), 133 km from the middle of the area, began a volume at 20:30 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

Time	Report	Where	Remark
Jul 15, 5:15 PM EDT	HEAVY RAIN 2.71	2 S Philema, GA	SITE OKFG1 ALONG THE FLINT RIVER MEASURED 2.71 INCHES OF RAIN IN 1 HOUR FROM 415 PM TO 515 PM EDT.

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, 8.5 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 690 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 879 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -7 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.

324 
WGUS52 KTAE 152030
FFWTAE
GAC095-177-321-152230-
/O.NEW.KTAE.FF.W.0008.180715T2030Z-180715T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
430 PM EDT SUN JUL 15 2018

The National Weather Service in Tallahassee has issued a

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

* Until 630 PM EDT.

* At 430 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Flash flooding is expected to
  begin shortly.

* Some locations that will experience flooding include...
  Leesburg, Putney, Albany, Smithville, East Albany, Marine Corps
  Logistics Base, Turner City, Stocks, Radium Springs, Sylvester
  Airport, Pecan City, Red Rock, Starksville, Acree, Scrutchins,
  Gammage, Crestwood, Neyami, Williamsburg and Philema.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3191 8415 3175 8387 3151 8387 3143 8400
      3144 8400 3144 8412 3152 8414 3168 8416
      3192 8429

$$

42-DVD

1 follow-up statement

555 
WGUS72 KTAE 152203
FFSTAE

Flash Flood Statement
National Weather Service Tallahassee FL
603 PM EDT SUN JUL 15 2018

GAC095-177-321-152213-
/O.CAN.KTAE.FF.W.0008.000000T0000Z-180715T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dougherty GA-Lee GA-Worth GA-
603 PM EDT SUN JUL 15 2018

...THE FLASH FLOOD WARNING FOR EASTERN DOUGHERTY...CENTRAL LEE AND
NORTHWESTERN WORTH COUNTIES IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat.

LAT...LON 3191 8415 3175 8387 3151 8387 3143 8400
      3144 8400 3144 8412 3152 8414 3168 8416
      3192 8429

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 2:01 PM EDT	Special Weather Statement	TAE	Early	29 min
Jul 15, 2:26 PM EDT	Special Weather Statement	TAE	Early, Miller	49 min
Jul 15, 3:42 PM EDT	Areal Flood Advisory	TAE	Decatur, Miller, Seminole	3 hr
Jul 15, 4:02 PM EDT	Areal Flood Advisory	TAE	Dougherty	58 min
Jul 15, 5:48 PM EDT	Special Weather Statement	TAE	Brooks, Cook	27 min
Jul 15, 6:10 PM EDT	Areal Flood Advisory	TAE	Brooks	65 min
Jul 15, 6:40 PM EDT	Special Weather Statement	TAE	Cook, Lanier	35 min
Jul 15, 7:13 PM EDT	Special Weather Statement	TAE	Berrien, Lanier	32 min

Nearby

Flash Flood Warnings in Georgia, 2018 Every flash flood warning in 2018

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.