Alert archive / Florida / Flash Flood Warnings in 2020
Flash Flood Warning 24, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Sep 15, 2020, 4:36 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 7 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
- Sep 15, 2020, 4:36 PM CDT (21:36 UTC)
- Expired
- Sep 15, 2020, 11:30 PM CDT
- In force
- 7 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), 76 km from the middle of the area, began a volume at 21:36 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, 9.6 hours before the alert went out and 232 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
- 64 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1002 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
475
WGUS54 KMOB 152136
FFWMOB
FLC091-113-160430-
/O.NEW.KMOB.FF.W.0024.200915T2136Z-200916T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
436 PM CDT Tue Sep 15 2020
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Okaloosa County in northwestern Florida...
Southeastern Santa Rosa County in northwestern Florida...
* Until 1130 PM CDT Tuesday.
* At 434 PM CDT, Doppler radar and automated rain gauges indicated
heavy rain falling across the warned area. Between 2 and 4 inches
of rain have fallen. Flash flooding is already occurring.
HAZARD...Flash flooding caused by heavy rain associated with
Hurricane Sally.
SOURCE...Doppler radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Wright, Fort Walton Beach, Crestview, Niceville, Destin, Eglin
AFB, Valparaiso, Mary Esther, Ocean City, Lake Lorraine, Baker,
Shalimar, Laurel Hill, Cinco Bayou, Milligan, Galliver, Holt,
Kellys Mill, Silver Springs and Longwood.
Additional rainfall amounts of 5 to 10 inches are possible in the
warned area through this evening. Potential rainfall amounts of 18
to 22 inches are possible through Wednesday.
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.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3055 8691 3082 8692 3099 8639 3037 8639
3039 8664 3037 8685
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
JFPThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 3:35 PM CDT | Flash Flood Warning | MOB | Escambia, Santa Rosa | 8 hr |
| Sep 15, 5:49 PM CDT | Flash Flood Warning | MOB | Escambia, Santa Rosa | 5 hr |
Nearby
Flash Flood Warnings in Florida, 2020Every flash flood warning in 2020
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.