Alert archive / Florida / Flash Flood Warnings in 2021

Flash Flood Warning 6, NWS Tallahassee, FL

April 24, 2021Holmes County, Jackson County, Walton County, Florida; Geneva County, Houston County, Alabama

NWS Tallahassee, FL issued this flash flood warning at Apr 24, 2021, 9:39 AM CDT for Holmes County, Jackson County, Walton County, Florida; Geneva County, Houston County, Alabama. It was in force for 3 hr. 11 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: Apr 24, 2021, 9:39 AM CDT (14:39 UTC)
Expired: Apr 24, 2021, 12:45 PM CDT
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Geneva County, AL, Houston County, AL, Holmes County, FL, Jackson County, FL, Walton County, FL

The radar

The Ft Rucker radar (KEOX), 53 km from the middle of the area, began a volume at 14:42 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
Apr 24, 10:19 AM CDT	FLASH FLOOD	1 Nne Noma, FL	HWY 173 AND MC CARNLEY RD UNDERWATER.
Apr 24, 10:19 AM CDT	FLASH FLOOD	1 W Pittman, FL	HIGHWAY 2 AND COPPERHEAD LN UNDERWATER.
Apr 24, 10:19 AM CDT	FLASH FLOOD	2 Ne Leonia, FL	HIGHWAY 185 AND MORRISON ROAD UNDERWATER.
Apr 24, 10:19 AM CDT	FLASH FLOOD	2 W New Hope, FL	CARLIS LANE AND GILMORE ROAD NEAR HIGHWAY 2 UNDERWATER.
Apr 24, 10:19 AM CDT	FLASH FLOOD	3 Wnw Barker Store, FL	HIGHWAY 81 AND HIGHWAY 2 UNDERWATER.
Apr 24, 10:19 AM CDT	FLASH FLOOD	Tendil Crossing, FL	HIGHWAY 173 AND 160 UNDERWATER.
Apr 24, 11:13 AM CDT	FLASH FLOOD	1 Nnw Glendale, FL	REPORT OF AN IMPASSIBLE FLOODED ROAD AT 83 AND BELL ROAD.
Apr 24, 11:15 AM CDT	FLASH FLOOD	2 Wnw Cluster Springs, FL	REPORT FROM MPING: STREET/ROAD FLOODING; STREET/ROAD CLOSED; VEHICLES STRANDED.
Apr 24, 12:10 PM CDT	FLASH FLOOD	1 S Gaskin, FL	SEVERAL REPORTS OF 4-6+ INCH RAINFALL ALONG WITH SEVERAL ROADS UNDER WATER.
Apr 24, 12:25 PM CDT	FLASH FLOOD	2 E Pond Creek, FL	RECEIVED REPORTS OF CROWDER CHAPEL ROAD AND HINOTE ROAD BEING FLOODED.
Apr 24, 12:25 PM CDT	FLASH FLOOD	2 Sw Glendale, FL	SEVERAL REPORTS OF FLOODING AT COUNTY HIGHWAY 1084.

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, 2.7 hours before the alert went out and 159 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: 175 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 447 m²/s²
0-3 km storm-relative helicity: 570 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

901 
WGUS52 KTAE 241439
FFWTAE
ALC061-069-FLC059-063-131-241745-
/O.NEW.KTAE.FF.W.0006.210424T1439Z-210424T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
939 AM CDT Sat Apr 24 2021

The National Weather Service in Tallahassee has issued a

* Flash Flood Warning for...
  Geneva County in southeastern Alabama...
  Houston County in southeastern Alabama...
  Northwestern Jackson County in the Panhandle of Florida...
  Northwestern Walton County in the Panhandle of Florida...
  Holmes County in the Panhandle of Florida...

* Until 1245 PM CDT.

* At 938 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to four inches of rain have 
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Cottonwood, Geneva, Graceville, Dothan, De Funiak Springs,
  Hartford, Taylor, Ashford, Slocomb, Samson, Cowarts, Webb, Eglin
  Air Force Base, Union, Liberty, Malvern, Rehobeth, Paxton, Avon and
  Esto.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3099 8639 3100 8619 3119 8619 3119 8571
      3124 8569 3127 8511 3117 8510 3103 8501
      3093 8530 3068 8639

$$

55-SCHOLL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 12:45 AM CDT	Flash Flood Watch	TAE	Holmes, Jackson, Walton, Washington	22 hr
Apr 24, 1:00 AM CDT	Wind Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	18 hr
Apr 24, 6:29 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton	59 min
Apr 24, 8:14 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton	46 min
Apr 24, 8:56 AM CDT	Special Weather Statement	TAE	Holmes	49 min
Apr 24, 9:01 AM CDT	Areal Flood Advisory	TAE	Holmes, Jackson, Walton	119 min
Apr 24, 9:48 AM CDT	Special Weather Statement	TAE	Jackson	42 min
Apr 24, 9:52 AM CDT	Severe Thunderstorm Warning	TAE	Jackson, Washington	53 min
Apr 24, 9:57 AM CDT	Tornado Warning	TAE	Jackson, Washington	14 min
Apr 24, 10:20 AM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson	40 min
Apr 24, 10:54 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton, Washington	51 min
Apr 24, 10:57 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden	48 min
Apr 24, 11:09 AM CDT	Flash Flood Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	3 hr
Apr 24, 11:25 AM CDT	Special Weather Statement	TAE	Leon	50 min
Apr 24, 11:30 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Jefferson, Leon	30 min
Apr 24, 11:41 AM CDT	River Flood Warning	TAE	Walton	41 hr
Apr 24, 11:41 AM CDT	Special Weather Statement	TAE	Holmes	64 min
Apr 24, 11:45 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	30 min
Apr 24, 11:53 AM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Madison	52 min
Apr 24, 12:03 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	27 min
Apr 24, 12:17 PM CDT	Flash Flood Warning Considerable damage threat	TAE	Jackson, Washington	3 hr
Apr 24, 12:34 PM CDT	Flash Flood Warning Considerable damage threat	TAE	Holmes, Jackson, Walton, Washington	3 hr
Apr 24, 12:34 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	41 min
Apr 24, 12:39 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Madison	51 min
Apr 24, 1:09 PM CDT	Tornado Warning	TAE	Jefferson, Madison	36 min
Apr 24, 1:38 PM CDT	Tornado Warning	TAE	Madison	19 min
Apr 24, 7:12 AM CDT	Severe Thunderstorm Warning	TAE	Dale, Geneva, Henry, Houston	93 min
Apr 24, 7:25 AM CDT	Tornado Warning	TAE	Dale, Henry	31 min
Apr 24, 7:48 AM CDT	Tornado Warning	TAE	Houston	27 min
Apr 24, 7:52 AM CDT	Tornado Warning	TAE	Henry	53 min
Apr 24, 12:08 PM CDT	Special Weather Statement	TAE	Coffee, Dale	67 min
Apr 24, 1:15 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Houston	60 min
Apr 24, 1:20 PM CDT	Tornado Warning	TAE	Coffee, Dale, Geneva	40 min
Apr 24, 2:12 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	63 min
Apr 24, 2:39 PM CDT	Tornado Warning	TAE	Dale, Henry, Houston	19 min
Apr 24, 2:49 PM CDT	Severe Thunderstorm Warning	TAE	Henry, Houston	56 min
Apr 24, 3:46 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	44 min
Apr 24, 4:24 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Henry	51 min
Apr 24, 5:04 PM CDT	Severe Thunderstorm Warning	TAE	Coffee	41 min
Apr 24, 5:12 PM CDT	Special Weather Statement	TAE	Henry	63 min
Apr 24, 5:23 PM CDT	Severe Thunderstorm Warning	TAE	Dale, Henry	37 min
Apr 24, 5:59 PM CDT	Severe Thunderstorm Warning	TAE	Coffee	31 min
Apr 24, 6:05 PM CDT	Severe Thunderstorm Warning	TAE	Henry	40 min
Apr 24, 6:24 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	66 min
Apr 24, 6:47 PM CDT	Severe Thunderstorm Warning	TAE	Henry	43 min

Nearby

Flash Flood Warnings in Florida, 2021 Flash Flood Warnings in Alabama, 2021 Every 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.