Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 21, NWS Mobile, AL

April 10, 2021Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Apr 10, 2021, 5:57 AM CDT for Okaloosa County, Florida. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 10, 2021, 5:57 AM CDT (10:57 UTC)
Expired: Apr 10, 2021, 6:30 AM CDT
In force: 33 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), 71 km from the middle of the area, began a volume at 10:56 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.

What was reported inside it

Time	Report	Where	Remark
Apr 10, 6:13 AM CDT	TSTM WND DMG	1 Wnw Deerland, FL	PUBLIC REPORT OF MULTIPLE TREES DOWN ON MOUNT OLIVE ROAD. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 10, 2:30 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.0 hours before the alert went out and 227 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: 160 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 849 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

683 
WFUS54 KMOB 101057
TORMOB
FLC091-101130-
/O.NEW.KMOB.TO.W.0021.210410T1057Z-210410T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
557 AM CDT Sat Apr 10 2021

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Central Okaloosa County in northwestern Florida...

* Until 630 AM CDT.
    
* At 556 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 10 miles south of Baker, or 11 miles southwest of
  Crestview, moving east at 50 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 dangerous storm will be near...
  Crestview around 610 AM CDT.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3059 8678 3066 8679 3069 8679 3083 8639
      3062 8639
TIME...MOT...LOC 1056Z 258DEG 45KT 3065 8672 

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

$$

Black

3 follow-up statements

135 
WWUS54 KMOB 101104
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
604 AM CDT Sat Apr 10 2021

FLC091-101130-
/O.CON.KMOB.TO.W.0021.000000T0000Z-210410T1130Z/
Okaloosa FL-
604 AM CDT Sat Apr 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR EAST
CENTRAL OKALOOSA COUNTY...
    
At 604 AM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles south of Crestview, moving east at 50 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3060 8666 3068 8669 3080 8639 3062 8639
TIME...MOT...LOC 1104Z 258DEG 45KT 3067 8660 

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

$$

Black

382 
WWUS54 KMOB 101112
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
612 AM CDT Sat Apr 10 2021

FLC091-101130-
/O.CON.KMOB.TO.W.0021.000000T0000Z-210410T1130Z/
Okaloosa FL-
612 AM CDT Sat Apr 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR EAST
CENTRAL OKALOOSA COUNTY...
    
At 612 AM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Crestview, moving east at 50 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3061 8657 3068 8658 3073 8639 3062 8639
TIME...MOT...LOC 1112Z 263DEG 42KT 3065 8651 

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

$$

Black

697 
WWUS54 KMOB 101125
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
625 AM CDT Sat Apr 10 2021

FLC091-101135-
/O.EXP.KMOB.TO.W.0021.000000T0000Z-210410T1130Z/
Okaloosa FL-
625 AM CDT Sat Apr 10 2021

...THE TORNADO WARNING FOR EAST CENTRAL OKALOOSA COUNTY WILL EXPIRE
AT 630 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Tornado Watch remains in effect until 800 AM CDT for northwestern
Florida.

LAT...LON 3061 8657 3068 8658 3073 8639 3062 8639
TIME...MOT...LOC 1125Z 258DEG 45KT 3068 8635 

$$

Black

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 2:50 AM CDT	Severe Thunderstorm Warning	MOB	Escambia	55 min
Apr 10, 2:59 AM CDT	Severe Thunderstorm Warning	MOB	Escambia	61 min
Apr 10, 3:46 AM CDT	Special Weather Statement	MOB	Escambia, Santa Rosa	44 min
Apr 10, 3:53 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	67 min
Apr 10, 4:07 AM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Apr 10, 4:30 AM CDT	Special Weather Statement	MOB	Okaloosa	45 min
Apr 10, 4:53 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	52 min
Apr 10, 5:10 AM CDT	Areal Flood Advisory	MOB	Escambia, Santa Rosa	3 hr
Apr 10, 5:40 AM CDT	Flash Flood Warning	MOB	Escambia, Santa Rosa	6 hr
Apr 10, 5:44 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	61 min
Apr 10, 6:18 AM CDT	Tornado Warning	MOB	Okaloosa	12 min
Apr 10, 6:20 AM CDT	Severe Thunderstorm Warning	MOB	Escambia	40 min
Apr 10, 6:52 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	53 min
Apr 10, 7:35 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	41 min
Apr 10, 7:39 AM CDT	Flash Flood Warning	MOB	Okaloosa	5 hr
Apr 10, 9:38 AM CDT	River Flood Warning	MOB	Okaloosa	11 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.