Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 94, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Oct 4, 2021, 11:14 AM CDT for Okaloosa County, Florida. It was in force for 4 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
- Oct 4, 2021, 11:14 AM CDT (16:14 UTC)
- Expired
- Oct 4, 2021, 2:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 53 km from the middle of the area, began a volume at 16:17 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, 4.2 hours before the alert went out and 207 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
- 327 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 856 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
330
WGUS54 KMOB 041614
FFWMOB
FLC091-042200-
/O.NEW.KMOB.FF.W.0094.211004T1614Z-211004T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1114 AM CDT Mon Oct 4 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southeastern Okaloosa County in northwestern Florida...
* Until 500 PM CDT.
* At 1114 AM CDT, Doppler radar indicated additional heavy rain over
the Gulf of Mexico moving northeast toward southeast Okaloosa
County. Parts of Destin, Niceville, and Seminole have already
received 3 to 6 inches of rain, with a few rain gauge reports near
7 inches in Seminole. The additional heavy rain moving into the
area could produce another 1 to 3 inches of rain this afternoon,
which will likely prolong any ongoing flooding and potentially
result in new areas of flash flooding.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Emergency management reported.
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...
Niceville, Destin, Eglin AFB, Valparaiso, Lake Lorraine, Shalimar,
Postil, Eglin Village, Seminole and Longwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3054 8660 3057 8639 3046 8639 3046 8638
3039 8637 3040 8639 3035 8639 3036 8660
FLASH FLOOD...OBSERVED
$$1 follow-up statement
295
WGUS74 KMOB 041945
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
245 PM CDT Mon Oct 4 2021
FLC091-041955-
/O.CAN.KMOB.FF.W.0094.000000T0000Z-211004T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Okaloosa FL-
245 PM CDT Mon Oct 4 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN OKALOOSA
COUNTY...
The heavy rain has ended. Please continue to heed any additional
information from local officials.
A Flash Flood Watch remains in effect until 100 AM CDT Wednesday.
Additional periods of heavy rain are expected tonight through
Tuesday night.
LAT...LON 3054 8660 3057 8639 3046 8639 3046 8638
3039 8637 3040 8639 3035 8639 3036 8660
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 3:30 AM CDT | Flash Flood Watch | MOB | Escambia, Okaloosa, Santa Rosa | 3 days |
| Oct 4, 4:42 AM CDT | Areal Flood Advisory | MOB | Okaloosa | 3 hr |
| Oct 4, 5:18 AM CDT | Flash Flood Warning | MOB | Okaloosa | 6 hr |
| Oct 4, 6:02 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Oct 4, 7:11 AM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 3 hr |
| Oct 4, 8:17 AM CDT | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 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.