Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 51, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 25, 2021, 11:30 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 6 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
- Aug 25, 2021, 11:30 PM CDT (04:30 UTC)
- Expired
- Aug 26, 2021, 5:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 82 km from the middle of the area, began a volume at 04:31 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 00:00Z, 4.5 hours before the alert went out and 236 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
- 566 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 933 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
126
WGUS54 KMOB 260430
FFWMOB
FLC091-113-261030-
/O.NEW.KMOB.FF.W.0051.210826T0430Z-210826T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1130 PM CDT Wed Aug 25 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southwestern Okaloosa County in northwestern Florida...
Southeastern Santa Rosa County in northwestern Florida...
* Until 530 AM CDT.
* At 1130 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 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.
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...
Wright, Fort Walton Beach, Destin, Eglin AFB, Mary Esther, Ocean
City, Lake Lorraine, Navarre, Shalimar, Cinco Bayou, Navarre
Beach, Wynnehaven Beach, Longwood, Harper, Eglin Village, Holley
and Postil.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3048 8695 3053 8676 3049 8648 3037 8646
3037 8698
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 10:55 PM CDT | Areal Flood Advisory | MOB | Escambia | 33 min |
| Aug 25, 11:02 PM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 29 min |
| Aug 25, 11:25 PM CDT | Flash Flood Warning | MOB | Escambia | 6 hr |
Nearby
Flash Flood Warnings in Florida, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.