Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 25, NWS Mobile, AL

April 24, 2021Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Apr 24, 2021, 10:01 AM CDT for Okaloosa County, Florida. It was in force for 14 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: Apr 24, 2021, 10:01 AM CDT (15:01 UTC)
Expired: Apr 24, 2021, 10:15 AM CDT
In force: 14 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 56 km from the middle of the area, began a volume at 15:02 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, 3.0 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 175 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 447 m²/s²
0-3 km storm-relative helicity: 570 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

038 
WFUS54 KMOB 241501
TORMOB
FLC091-241515-
/O.NEW.KMOB.TO.W.0025.210424T1501Z-210424T1515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
1001 AM CDT Sat Apr 24 2021

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  East central Okaloosa County in northwestern Florida...

* Until 1015 AM CDT.
    
* At 1001 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 6 miles east of Crestview, moving east at 45
  mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Okaloosa County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3068 8652 3079 8656 3084 8639 3070 8639
TIME...MOT...LOC 1501Z 254DEG 40KT 3075 8646 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Black

1 follow-up statement

020 
WWUS54 KMOB 241511
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1011 AM CDT Sat Apr 24 2021

FLC091-241521-
/O.EXP.KMOB.TO.W.0025.000000T0000Z-210424T1515Z/
Okaloosa FL-
1011 AM CDT Sat Apr 24 2021

...THE TORNADO WARNING FOR EAST CENTRAL OKALOOSA COUNTY WILL EXPIRE
AT 1015 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3068 8652 3079 8656 3084 8639 3070 8639
TIME...MOT...LOC 1511Z 254DEG 40KT 3078 8635 

$$

Black

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 24, 5:09 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	51 min
Apr 24, 5:14 AM CDT	Severe Thunderstorm Warning	MOB	Escambia	46 min
Apr 24, 5:51 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	54 min
Apr 24, 5:57 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	63 min
Apr 24, 6:20 AM CDT	Flash Flood Warning	MOB	Escambia	4 hr
Apr 24, 6:42 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	48 min
Apr 24, 6:58 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	47 min
Apr 24, 7:44 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	46 min
Apr 24, 8:24 AM CDT	Areal Flood Advisory	MOB	Escambia, Okaloosa, Santa Rosa	111 min
Apr 24, 8:29 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	16 min
Apr 24, 9:51 AM CDT	Special Weather Statement	MOB	Okaloosa	39 min
Apr 24, 10:14 AM CDT	Special Weather Statement	MOB	Okaloosa, Santa Rosa	46 min
Apr 24, 10:19 AM CDT	Flash Flood Warning	MOB	Okaloosa	4 hr
Apr 24, 10:39 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	36 min
Apr 24, 11:09 AM CDT	Special Weather Statement	MOB	Santa Rosa	51 min
Apr 24, 12:46 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	44 min
Apr 24, 6:27 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	48 min
Apr 24, 6:33 PM CDT	Areal Flood Warning	MOB	Escambia, Okaloosa, Santa Rosa	3 hr

Nearby

Tornado Warnings in Florida, 2021 Every tornado warning in 2021 Tornadoes 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.