Alert archive / Georgia / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Tallahassee, FL

April 7, 2014Decatur County, Grady County, Georgia

NWS Tallahassee, FL issued this flash flood warning at Apr 7, 2014, 2:55 PM EDT for Decatur County, Grady County, Georgia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 7, 2014, 2:55 PM EDT (18:55 UTC)
Expired: Apr 7, 2014, 5:45 PM EDT
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Decatur County, GA, Grady County, GA

The radar

The Tallahassee radar (KTLH), 65 km from the middle of the area, began a volume at 18:57 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 66 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: 7 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1052 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 339 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

841 
WGUS52 KTAE 071855
FFWTAE
GAC087-131-072145-
/O.NEW.KTAE.FF.W.0004.140407T1855Z-140407T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
255 PM EDT MON APR 7 2014

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DECATUR COUNTY IN SOUTHWEST GEORGIA...
  THIS INCLUDES THE CITY OF BAINBRIDGE...
  NORTHWESTERN GRADY COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 545 PM EDT

* AT 248 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED VERY     
  HEAVY RAIN FROM A THUNDERSTORM ACROSS DECATUR COUNTY AND           
  NORTHWESTERN GRADY COUNTY. OVER THE NEXT TWO HOURS...ADDITIONAL    
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN WILL MOVE INTO DECATUR AND 
  GRADY COUNTIES...LIKELY INCREASING THE RISK OF FLASH FLOODING. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHIGHAM AND
  BAINBRIDGE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE AWAY FROM RISING WATER TO HIGHER GROUND! MOST FLOOD DEATHS OCCUR
IN VEHICLES. DO NOT ATTEMPT TO DRIVE THROUGH FLOODED ROADS.
REMEMBER...TURN AROUND...DON'T DROWN.

REPORT FLOODING OR FLOOD DAMAGE TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3...OR YOU MAY CONTACT THE NEAREST
LAW ENFORCEMENT AGENCY.

&&

LAT...LON 3107 8419 3069 8444 3072 8486 3077 8486
      3076 8485 3080 8479 3084 8477 3088 8477
      3089 8476 3104 8476 3107 8473 3107 8465
      3108 8464

$$

38-GODSEY

1 follow-up statement

388 
WGUS72 KTAE 072029
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
429 PM EDT MON APR 7 2014

GAC087-131-072145-
/O.CON.KTAE.FF.W.0004.000000T0000Z-140407T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRADY GA-DECATUR GA-
429 PM EDT MON APR 7 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
EASTERN DECATUR AND NORTHWESTERN GRADY COUNTIES...

AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED 
AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

&&

LAT...LON 3071 8467 3108 8450 3107 8419 3069 8444

$$

38-GODSEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:46 PM EDT	River Flood Warning	TAE	Lee	5 days
Apr 7, 3:22 AM EDT	Wind Advisory	TAE	Baker, Ben Hill, Berrien, Brooks, Colquitt, Cook and 12 more	14 hr
Apr 7, 12:44 PM EDT	Areal Flood Advisory	TAE	Baker, Early, Miller	3 hr
Apr 7, 1:31 PM EDT	Areal Flood Advisory	TAE	Seminole	3 hr
Apr 7, 1:39 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Irwin, Tift, Turner	51 min
Apr 7, 1:40 PM EDT	Flash Flood Warning	TAE	Seminole	3 hr
Apr 7, 1:49 PM EDT	Tornado Warning	TAE	Berrien, Irwin, Tift	26 min
Apr 7, 1:54 PM EDT	Areal Flood Advisory	TAE	Colquitt, Dougherty, Mitchell, Tift, Worth	3 hr
Apr 7, 2:09 PM EDT	Tornado Warning	TAE	Irwin	36 min
Apr 7, 2:21 PM EDT	Areal Flood Advisory	TAE	Decatur, Grady	3 hr
Apr 7, 3:40 PM EDT	River Flood Warning	TAE	Decatur, Miller, Seminole	3 days
Apr 7, 4:43 PM EDT	Areal Flood Warning	TAE	Colquitt, Dougherty, Mitchell, Tift, Worth	18 hr
Apr 7, 6:11 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Lowndes	49 min
Apr 7, 6:52 PM EDT	Severe Thunderstorm Warning	TAE	Lanier, Lowndes	23 min

Nearby

Flash Flood Warnings in Georgia, 2014 Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.