Alert archive / Florida / Flash Flood Warnings in 2017
Flash Flood Warning 73, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 31, 2017, 10:16 AM CDT for Okaloosa County, Florida. It was in force for 3 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 31, 2017, 10:16 AM CDT (15:16 UTC)
- Expired
- Aug 31, 2017, 1:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 52 km from the middle of the area, began a volume at 15:18 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, 3.3 hours before the alert went out and 205 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
- 1781 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.0
The text
As transmitted.
236
WGUS54 KMOB 311516
FFWMOB
FLC091-311815-
/O.NEW.KMOB.FF.W.0073.170831T1516Z-170831T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1016 AM CDT THU AUG 31 2017
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southeastern Okaloosa County in northwestern Florida...
* Until 115 PM CDT
* At 1015 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area, especially around the Destin
area. Up to two inches of rain have already fallen in the past
hour and an additional two to four inches is possible as
additional thunderstorms move in from the Gulf of Mexico. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Destin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3034 8660 3054 8642 3054 8639 3046 8639
3046 8637 3048 8633 3039 8638 3040 8639
3038 8640 3038 8650 3029 8650
$$1 follow-up statement
998
WGUS74 KMOB 311655
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
1155 AM CDT THU AUG 31 2017
FLC091-311705-
/O.CAN.KMOB.FF.W.0073.000000T0000Z-170831T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Okaloosa FL-
1155 AM CDT THU AUG 31 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN OKALOOSA COUNTY IS
CANCELLED...
The heavy rain has ended. Therefore, the warning has been cancelled.
LAT...LON 3034 8660 3054 8642 3054 8639 3046 8639
3046 8637 3048 8633 3039 8638 3040 8639
3038 8640 3038 8650 3029 8650
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 4:40 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Aug 31, 4:50 AM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 3 hr |
| Aug 31, 6:35 AM CDT | Areal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 3 hr |
| Aug 31, 7:10 AM CDT | Special Weather Statement | MOB | Santa Rosa | 35 min |
| Aug 31, 7:16 AM CDT | Special Weather Statement | MOB | Okaloosa, Santa Rosa | 59 min |
| Aug 31, 7:37 AM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 3 hr |
| Aug 31, 8:01 AM CDT | Special Weather Statement | MOB | Okaloosa | 59 min |
| Aug 31, 9:31 AM CDT | Special Weather Statement | MOB | Okaloosa | 29 min |
| Aug 31, 9:48 AM CDT | Special Weather Statement | MOB | Okaloosa | 42 min |
| Aug 31, 10:33 AM CDT | River Flood Warning | MOB | Okaloosa | 3 days |
| Aug 31, 10:54 AM CDT | Areal Flood Advisory | MOB | Okaloosa | 51 min |
| Aug 31, 3:03 PM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 54 hr |
| Aug 31, 3:06 PM CDT | River Flood Warning | MOB | Escambia | 22 hr |
Nearby
Flash Flood Warnings in Florida, 2017Every flash flood warning in 2017
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.