Alert archive / Florida / Tornado Warnings in 2019

Tornado Warning 48, NWS Mobile, AL

October 30, 2019Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Oct 30, 2019, 6:50 PM CDT for Okaloosa County, Florida. It was in force for 40 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, 6:50 PM CDT (23:50 UTC)
Expired
Oct 30, 2019, 7:30 PM CDT
In force
40 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), 54 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 207 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.

566 
WFUS54 KMOB 302350
TORMOB
FLC091-310030-
/O.NEW.KMOB.TO.W.0048.191030T2350Z-191031T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
650 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 730 PM CDT.
    
* At 650 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Destin, moving north 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...
  Destin around 655 PM CDT.
  Niceville around 720 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 3033 8650 3052 8650 3051 8639 3033 8640
TIME...MOT...LOC 2350Z 183DEG 18KT 3036 8646 

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

$$
3 follow-up statements
894 
WWUS54 KMOB 310003
SVSMOB

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

FLC091-310030-
/O.CON.KMOB.TO.W.0048.000000T0000Z-191031T0030Z/
Okaloosa FL-
703 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 702 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles northeast of Destin, moving north 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...
  Just east of Niceville around 720 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 8650 3052 8650 3051 8639 3048 8639
      3038 8640
TIME...MOT...LOC 0002Z 193DEG 18KT 3042 8643 

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

$$
108 
WWUS54 KMOB 310008
SVSMOB

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

FLC091-310030-
/O.CON.KMOB.TO.W.0048.000000T0000Z-191031T0030Z/
Okaloosa FL-
708 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 707 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles northeast of Destin, moving northeast at 25 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
southeastern 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 3039 8650 3052 8650 3051 8639 3048 8639
      3038 8640
TIME...MOT...LOC 0007Z 210DEG 21KT 3044 8641 

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

$$
322 
WWUS54 KMOB 310019
SVSMOB

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

FLC091-310030-
/O.CON.KMOB.TO.W.0048.000000T0000Z-191031T0030Z/
Okaloosa FL-
719 PM CDT Wed Oct 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
At 717 PM CDT, a severe thunderstorm capable of producing a tornado 
was located near Destin, moving northeast at 25 mph. THIS IS A THIRD 
CIRCULATION. This Tornado Warning will remain in effect as long as 
tight radar indicated circulations continue moving to the north from 
just south of Destin. 

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.

Locations impacted include...
Niceville and Destin. 

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 8650 3052 8650 3051 8639 3048 8639
      3038 8640
TIME...MOT...LOC 0017Z 213DEG 21KT 3041 8643 

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

$$

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, 6:14 PM CDTTornado WarningMOBOkaloosa46 min
Oct 30, 6:17 PM CDTFlash Flood WarningMOBSanta Rosa6 hr
Oct 30, 6:22 PM CDTTornado WarningMOBOkaloosa38 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.