Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 103, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Oct 6, 2021, 4:31 AM 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
- Oct 6, 2021, 4:31 AM CDT (09:31 UTC)
- Expired
- Oct 6, 2021, 10:30 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 09:34 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, 9.5 hours before the alert went out and 235 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
- 293 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
The text
As transmitted.
203
WGUS54 KMOB 060931
FFWMOB
FLC091-113-061530-
/O.NEW.KMOB.FF.W.0103.211006T0931Z-211006T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
431 AM CDT Wed Oct 6 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 1030 AM CDT.
* At 431 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across 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...
Fort Walton Beach, Mary Esther, Shalimar, Cinco Bayou, Navarre
Beach and Wynnehaven Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3039 8692 3040 8691 3042 8674 3043 8674
3044 8660 3047 8657 3038 8656 3038 8667
3036 8692
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 8:53 PM CDT | River Flood Warning | MOB | Escambia | 6 days |
| Oct 5, 11:01 PM CDT | Areal Flood Warning | MOB | Escambia, Santa Rosa | 12 hr |
| Oct 6, 12:12 AM CDT | Areal Flood Advisory | MOB | Okaloosa | 4 hr |
| Oct 6, 1:21 AM CDT | Areal Flood Advisory | MOB | Santa Rosa | 3 hr |
| Oct 6, 2:23 AM CDT | Special Weather Statement | MOB | Okaloosa | 52 min |
| Oct 6, 3:00 AM CDT | Flash Flood Warning | MOB | Okaloosa | 6 hr |
| Oct 6, 3:46 AM CDT | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 6 hr |
| Oct 6, 4:52 AM CDT | Special Weather Statement | MOB | Okaloosa | 38 min |
| Oct 6, 5:19 AM CDT | Flash Flood Warning | MOB | Okaloosa | 6 hr |
| Oct 6, 10:00 AM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 46 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.