Alert archive / Florida / Tornado Warnings in 2019

Tornado Warning 46, NWS Mobile, AL

October 30, 2019Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Oct 30, 2019, 6:14 PM CDT for Okaloosa County, Florida. It was in force for 46 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 30, 2019, 6:14 PM CDT (23:14 UTC)
Expired
Oct 30, 2019, 7:00 PM CDT
In force
46 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), 63 km from the middle of the area, began a volume at 23:14 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, 11.2 hours before the alert went out and 216 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2019-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 419 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2019-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
419 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
585 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

734 
WFUS54 KMOB 302314
TORMOB
FLC091-310000-
/O.NEW.KMOB.TO.W.0046.191030T2314Z-191031T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
614 PM CDT Wed Oct 30 2019

The National Weather Service in Mobile has issued a

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

* Until 700 PM CDT.
    
* At 613 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Fort Walton Beach, moving northeast at 20 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...
  Cinco Bayou around 620 PM CDT.
  Ocean City around 625 PM CDT.
  Destin, Lake Lorraine and Shalimar around 630 PM CDT.
  Eglin AFB around 635 PM CDT.
  Valparaiso around 645 PM CDT.
  Niceville around 650 PM 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.

&&

LAT...LON 3039 8668 3059 8647 3049 8640 3039 8649
      3033 8662
TIME...MOT...LOC 2313Z 215DEG 18KT 3038 8661 

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

$$
4 follow-up statements
742 
WWUS54 KMOB 302326
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
626 PM CDT Wed Oct 30 2019

FLC091-310000-
/O.CON.KMOB.TO.W.0046.000000T0000Z-191031T0000Z/
Okaloosa FL-
626 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 624 PM CDT, public confirmed a tornado over water just south of 
Okaloosa island. It was located just northeast of Ft Walton Beach 
moving to the northeast at 25 mph.

HAZARD...Damaging tornado.

SOURCE...Public confirmed tornado.

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 tornado will be near...
  Eglin AFB around 630 PM CDT.
  Valparaiso around 640 PM CDT.
  Niceville around 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3039 8668 3059 8647 3049 8640 3039 8649
TIME...MOT...LOC 2324Z 217DEG 21KT 3043 8657 

TORNADO...OBSERVED
HAIL...<.75IN

$$
539 
WWUS54 KMOB 302334
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
634 PM CDT Wed Oct 30 2019

FLC091-310000-
/O.CON.KMOB.TO.W.0046.000000T0000Z-191031T0000Z/
Okaloosa FL-
634 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 634 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Eglin AFB, moving northeast at 20 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...
  Niceville and Valparaiso around 645 PM 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.

&&

LAT...LON 3045 8650 3045 8658 3049 8657 3059 8647
      3049 8640
TIME...MOT...LOC 2334Z 215DEG 18KT 3047 8654 

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

$$
947 
WWUS54 KMOB 302341
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
641 PM CDT Wed Oct 30 2019

FLC091-310000-
/O.CON.KMOB.TO.W.0046.000000T0000Z-191031T0000Z/
Okaloosa FL-
641 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 641 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Valparaiso, moving northeast at 20 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...
  Niceville around 645 PM 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.

&&

LAT...LON 3045 8650 3051 8655 3059 8647 3049 8640
TIME...MOT...LOC 2341Z 215DEG 18KT 3050 8652 

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

$$
625 
WWUS54 KMOB 302352
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
652 PM CDT Wed Oct 30 2019

FLC091-310001-
/O.EXP.KMOB.TO.W.0046.000000T0000Z-191031T0000Z/
Okaloosa FL-
652 PM CDT Wed Oct 30 2019

...THE TORNADO WARNING FOR SOUTHEASTERN OKALOOSA COUNTY WILL EXPIRE
AT 700 PM CDT...
                
The storm which prompted the warning no longer appears capable of 
producing a tornado. Therefore, the warning will be allowed to 
expire.

LAT...LON 3045 8650 3051 8655 3059 8647 3049 8640
TIME...MOT...LOC 2351Z 215DEG 18KT 3054 8649 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 30, 4:35 AM CDTRip Current StatementMOBEscambia, Okaloosa, Santa Rosa38 hr
Oct 30, 2:25 PM CDTTornado WarningMOBEscambia, Santa Rosa50 min
Oct 30, 2:53 PM CDTAreal Flood AdvisoryMOBOkaloosa, Santa Rosa3 hr
Oct 30, 3:26 PM CDTSpecial Weather StatementMOBOkaloosa49 min
Oct 30, 5:32 PM CDTSpecial Weather StatementMOBSanta Rosa43 min
Oct 30, 5:33 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa23 min
Oct 30, 6:17 PM CDTFlash Flood WarningMOBSanta Rosa6 hr
Oct 30, 6:22 PM CDTTornado WarningMOBOkaloosa38 min
Oct 30, 6:50 PM CDTTornado WarningMOBOkaloosa40 min
Oct 30, 6:55 PM CDTSevere Thunderstorm WarningMOBOkaloosa50 min

Nearby

Tornado Warnings in Florida, 2019Every tornado warning in 2019Tornadoes in 2019

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.