Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 27, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Aug 16, 2021, 5:19 PM CDT for Geneva County, Houston County, Alabama; Holmes County, Jackson County, Washington County, Florida. 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
- Aug 16, 2021, 5:19 PM CDT (22:19 UTC)
- Expired
- Aug 16, 2021, 11:15 PM CDT
- In force
- 6 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, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 22:21 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 |
|---|---|---|---|
| Aug 16, 7:00 PM CDT | FLASH FLOOD | Bonifay, FL | SEVERAL STREETS AND ROADWAYS IN BONIFAY ARE CLOSED DUE TO FLASH FLOODING. |
| Aug 16, 9:11 PM CDT | FLASH FLOOD | 4 Ssw Sills, FL | ROAD CLOSED DUE TO WATER RUNNING OVER THE ROADWAY AT THE INTERSECTION OF HIGHWAY 162 AND DUDLEY ROAD. |
| Aug 16, 10:15 PM CDT | FLASH FLOOD | 1 E Two Egg, FL | PUBLIC REPORTED VIA SOCIAL MEDIA THAT HUSSEY ROAD AND GREEN ROAD WERE FLOODED. |
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, 10.3 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 368 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 754 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
337
WGUS52 KTAE 162219
FFWTAE
ALC061-069-FLC059-063-133-170415-
/O.NEW.KTAE.FF.W.0027.210816T2219Z-210817T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
519 PM CDT Mon Aug 16 2021
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Southeastern Geneva County in southeastern Alabama...
Southeastern Houston County in southeastern Alabama...
Eastern Holmes County in the panhandle of Florida...
Western Jackson County in the panhandle of Florida...
North Central Washington County in the panhandle of Florida...
* Until 1115 PM CDT.
* At 519 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 2 inches of rain have
fallen in the last 2 Hours. Additional rainfall amounts of 2 to 6
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
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...
Cottonwood, Graceville, Marianna, Dothan, Bonifay, Taylor,
Slocomb, Malone, Malvern, Rehobeth, Grand Ridge, Greenwood, Esto,
Madrid, Campbellton, Noma, Black, Bascom, Memphis and Ellaville.
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.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3095 8581 3110 8566 3114 8549 3115 8542
3111 8513 3092 8497 3061 8494 3061 8498
3061 8502 3067 8510 3080 8529 3084 8557
3073 8577
FLASH FLOOD...RADAR INDICATED
$$1 follow-up statement
311
WGUS72 KTAE 170006
FFSTAE
Flash Flood Statement
National Weather Service Tallahassee FL
706 PM CDT Mon Aug 16 2021
ALC061-069-FLC059-063-133-170415-
/O.CON.KTAE.FF.W.0027.000000T0000Z-210817T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Geneva AL-Houston AL-Holmes FL-Jackson FL-Washington FL-
706 PM CDT Mon Aug 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT THIS
EVENING FOR SOUTHEASTERN GENEVA, SOUTHEASTERN HOUSTON, EASTERN
HOLMES, WESTERN JACKSON AND NORTH CENTRAL WASHINGTON COUNTIES...
At 706 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain. The heaviest rain has occurred over northeast Holmes County
near Bonifay and points northward. Between 2 and 6 inches of rain
have fallen in the last 3 Hours. Additional rainfall amounts of 1 to
3 inches are possible in the warned area. Flash flooding is already
occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Cottonwood, Graceville, Marianna, Dothan, Bonifay, Taylor,
Slocomb, Malone, Malvern, Rehobeth, Grand Ridge, Greenwood, Esto,
Madrid, Campbellton, Noma, Black, Bascom, Memphis and Ellaville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3095 8581 3110 8566 3114 8549 3115 8542
3111 8513 3092 8497 3061 8494 3061 8498
3061 8502 3067 8510 3080 8529 3084 8557
3073 8577
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
AHThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 6:19 PM CDT | Areal Flood Advisory | TAE | Dale, Geneva, Henry, Houston | 4 hr |
| Aug 16, 6:52 PM CDT | Flash Flood Warning | TAE | Dale, Geneva, Henry, Houston | 4 hr |
| Aug 16, 8:42 AM CDT | Special Marine Warning | TAE | 48 min | |
| Aug 16, 9:27 AM CDT | Special Marine Warning | TAE | 63 min | |
| Aug 16, 10:01 AM CDT | River Flood Warning | TAE | Calhoun | 23 hr |
| Aug 16, 11:08 AM CDT | Special Marine Warning | TAE | 97 min | |
| Aug 16, 11:13 AM CDT | Areal Flood Advisory | TAE | Franklin, Liberty, Wakulla | 4 hr |
| Aug 16, 11:24 AM CDT | Areal Flood Advisory | TAE | Franklin, Gulf | 4 hr |
| Aug 16, 2:19 PM CDT | Flash Flood Warning | TAE | Bay, Calhoun, Gulf, Washington | 6 hr |
| Aug 16, 2:20 PM CDT | Special Marine Warning | TAE | 43 min | |
| Aug 16, 3:44 PM CDT | Special Marine Warning | TAE | 46 min | |
| Aug 16, 3:51 PM CDT | Flash Flood Warning | TAE | Calhoun, Gulf, Jackson, Liberty, Washington | 6 hr |
| Aug 16, 4:01 PM CDT | Special Weather Statement | TAE | Madison | 44 min |
| Aug 16, 4:17 PM CDT | Areal Flood Advisory | TAE | Holmes, Walton, Washington | 4 hr |
| Aug 16, 4:18 PM CDT | Special Marine Warning | TAE | 87 min | |
| Aug 16, 4:47 PM CDT | Flash Flood Warning | TAE | Holmes, Washington | 5 hr |
Nearby
Flash Flood Warnings in Florida, 2021Flash Flood Warnings in Alabama, 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.