Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 203, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Oct 27, 2021, 11:49 PM CDT for Okaloosa County, Florida. It was in force for 41 min. 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 27, 2021, 11:49 PM CDT (04:49 UTC)
- Expired
- Oct 28, 2021, 12:30 AM CDT
- In force
- 41 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 56 km from the middle of the area, began a volume at 04:53 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 27, 7:21 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 4.8 hours before the alert went out and 212 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.
712 WUUS54 KMOB 280449 SVRMOB FLC091-280530- /O.NEW.KMOB.SV.W.0203.211028T0449Z-211028T0530Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Mobile AL 1149 PM CDT Wed Oct 27 2021 The National Weather Service in Mobile has issued a * Severe Thunderstorm Warning for... Southeastern Okaloosa County in northwestern Florida... * Until 1230 AM CDT. * At 1148 PM CDT, a severe thunderstorm was located 6 miles southwest of Destin, moving northeast at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Fort Walton Beach, Niceville, Destin, Eglin AFB, Valparaiso, Ocean City, Lake Lorraine, Shalimar and Cinco Bayou. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 100 AM CDT for northwestern Florida. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 100 AM CDT for northwestern Florida. && LAT...LON 3038 8667 3088 8640 3088 8639 3036 8640 TIME...MOT...LOC 0448Z 207DEG 50KT 3032 8658 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MM
2 follow-up statements
926 WWUS54 KMOB 280511 SVSMOB Severe Weather Statement National Weather Service Mobile AL 1211 AM CDT Thu Oct 28 2021 FLC091-280530- /O.CON.KMOB.SV.W.0203.000000T0000Z-211028T0530Z/ Okaloosa FL- 1211 AM CDT Thu Oct 28 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR SOUTHEASTERN OKALOOSA COUNTY... At 1211 AM CDT, a severe thunderstorm was located 4 miles northeast of Destin, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Niceville, Destin and Valparaiso. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 100 AM CDT for northwestern Florida. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3038 8656 3073 8648 3073 8639 3037 8640 TIME...MOT...LOC 0511Z 213DEG 41KT 3044 8644 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MM
106
WWUS54 KMOB 280521
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1221 AM CDT Thu Oct 28 2021
FLC091-280531-
/O.EXP.KMOB.SV.W.0203.000000T0000Z-211028T0530Z/
Okaloosa FL-
1221 AM CDT Thu Oct 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OKALOOSA COUNTY
WILL EXPIRE AT 1230 AM CDT...
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 100 AM CDT for northwestern
Florida.
LAT...LON 3038 8656 3073 8648 3073 8639 3037 8640
TIME...MOT...LOC 0521Z 207DEG 50KT 3054 8638
$$
MMThe 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 28, 12:31 AM CDT | Flash Flood Warning | MOB | Okaloosa | 5 hr |
| 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
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm 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.