Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 107, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Oct 28, 2021, 12:31 AM CDT for Okaloosa County, Florida. It was in force for 5 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 28, 2021, 12:31 AM CDT (05:31 UTC)
- Expired
- Oct 28, 2021, 5:42 AM CDT
- In force
- 5 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 54 km from the middle of the area, began a volume at 05:35 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, 5.5 hours before the alert went out and 209 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2227 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
835
WGUS54 KMOB 280531
FFWMOB
FLC091-281130-
/O.NEW.KMOB.FF.W.0107.211028T0531Z-211028T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1231 AM CDT Thu Oct 28 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southeastern Okaloosa County in northwestern Florida...
* Until 630 AM CDT.
* At 1231 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 1 to 2 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, Niceville, Destin, Eglin AFB,
Valparaiso, Mary Esther, Lake Lorraine, Ocean City, Shalimar,
Cinco Bayou, Eglin Village, Postil, Longwood and Seminole.
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.
&&
LAT...LON 3039 8679 3059 8639 3057 8639 3056 8639
3055 8639 3053 8639 3046 8639 3045 8639
3040 8639 3039 8639 3038 8639 3037 8639
3039 8677
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
MM2 follow-up statements
004
WGUS74 KMOB 280642
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
142 AM CDT Thu Oct 28 2021
FLC091-281130-
/O.CON.KMOB.FF.W.0107.000000T0000Z-211028T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Okaloosa FL-
142 AM CDT Thu Oct 28 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT THIS
MORNING FOR SOUTHEASTERN OKALOOSA COUNTY...
At 142 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. The expected rainfall rate is 1 to 2 inches in 1 hour.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Wright, Fort Walton Beach, Niceville, Destin, Eglin AFB,
Valparaiso, Mary Esther, Lake Lorraine, Ocean City, Shalimar,
Cinco Bayou, Eglin Village, Postil, Longwood and Seminole.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3039 8679 3059 8639 3057 8639 3056 8639
3055 8639 3053 8639 3046 8639 3045 8639
3040 8639 3039 8639 3038 8639 3037 8639
3039 8677
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
MM341
WGUS74 KMOB 281042
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
542 AM CDT Thu Oct 28 2021
FLC091-281052-
/O.CAN.KMOB.FF.W.0107.000000T0000Z-211028T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Okaloosa FL-
542 AM CDT Thu Oct 28 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN OKALOOSA
COUNTY...
Heavy rainfall has ended and flash flooding is no longer expected.
Please continue to heed any additional information from local
officials.
LAT...LON 3039 8679 3059 8639 3057 8639 3056 8639
3055 8639 3053 8639 3046 8639 3045 8639
3040 8639 3039 8639 3038 8639 3037 8639
3039 8677
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 9:55 PM CDT | Areal Flood Advisory | MOB | Escambia, Santa Rosa | 3 hr |
| Oct 27, 10:54 PM CDT | Special Weather Statement | MOB | Escambia, Santa Rosa | 51 min |
| Oct 27, 11:11 PM CDT | Areal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 5 hr |
| Oct 27, 11:26 PM CDT | Special Weather Statement | MOB | Okaloosa | 49 min |
| Oct 27, 11:49 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 41 min |
| Oct 28, 7:51 AM CDT | High Wind Warning | MOB | Escambia, Okaloosa, Santa Rosa | 26 hr |
| Oct 28, 7:51 AM CDT | Wind Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 31 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.