Alert archive / Florida / Tornado Warnings in 2015

Tornado Warning 17, NWS Mobile, AL

November 18, 2015Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Nov 18, 2015, 10:45 AM CST for Okaloosa County, Florida. It was in force for 30 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: Nov 18, 2015, 10:45 AM CST (16:45 UTC)
Expired: Nov 18, 2015, 11:15 AM CST
In force: 30 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 53 km from the middle of the area, began a volume at 16:49 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 watch it was issued in

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

Issued	Product	Office	Lasted
Nov 18, 8:25 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.8 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-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: 5 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 674 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

570 
WFUS54 KMOB 181645
TORMOB
FLC091-181715-
/O.NEW.KMOB.TO.W.0017.151118T1645Z-151118T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1045 AM CST WED NOV 18 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1115 AM CST
    
* AT 1044 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR DESTIN...MOVING NORTH AT 30 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 1050 AM CST.
  POSTIL AROUND 1105 AM CST.

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 8651 3039 8649 3040 8651 3041 8650
      3041 8647 3045 8642 3049 8645 3050 8645
      3051 8643 3051 8645 3047 8649 3048 8649
      3060 8645 3058 8639 3045 8639 3038 8640
TIME...MOT...LOC 1644Z 197DEG 27KT 3032 8642 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

BUTTS

2 follow-up statements

000 
WWUS54 KMOB 181700
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1100 AM CST WED NOV 18 2015

FLC091-181715-
/O.CON.KMOB.TO.W.0017.000000T0000Z-151118T1715Z/
OKALOOSA FL-
1100 AM CST WED NOV 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CST FOR
SOUTHEASTERN OKALOOSA COUNTY...
    
AT 1059 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR DESTIN...MOVING NORTH 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 DANGEROUS STORM WILL BE NEAR...
  POSTIL AROUND 1110 AM CST.

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.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

&&

LAT...LON 3039 8651 3039 8649 3040 8651 3041 8650
      3041 8647 3045 8642 3049 8645 3050 8645
      3051 8643 3051 8645 3047 8649 3048 8649
      3060 8645 3058 8639 3045 8639 3038 8640
TIME...MOT...LOC 1659Z 194DEG 23KT 3040 8640 

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

$$

BUTTS

618 
WWUS54 KMOB 181717
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1117 AM CST WED NOV 18 2015

FLC091-181726-
/O.EXP.KMOB.TO.W.0017.000000T0000Z-151118T1715Z/
OKALOOSA FL-
1117 AM CST WED NOV 18 2015

...THE TORNADO WARNING FOR SOUTHEASTERN OKALOOSA COUNTY HAS
EXPIRED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CST FOR NORTHWESTERN
FLORIDA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
MOBILE.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3039 8651 3039 8649 3040 8651 3041 8650
      3041 8647 3045 8642 3049 8645 3050 8645
      3051 8643 3051 8645 3047 8649 3048 8649
      3060 8645 3058 8639 3045 8639 3038 8640
TIME...MOT...LOC 1715Z 197DEG 27KT 3040 8640 

$$

BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 18, 1:27 AM CST	Special Weather Statement	MOB	Escambia	63 min
Nov 18, 1:36 AM CST	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	39 min
Nov 18, 2:07 AM CST	Special Weather Statement	MOB	Escambia	53 min
Nov 18, 3:37 AM CST	Severe Thunderstorm Warning	MOB	Escambia	38 min
Nov 18, 3:38 AM CST	Tornado Warning	MOB	Escambia	13 min
Nov 18, 4:36 AM CST	Special Weather Statement	MOB	Escambia	54 min
Nov 18, 5:44 AM CST	Special Weather Statement	MOB	Escambia, Santa Rosa	61 min
Nov 18, 6:52 AM CST	Coastal Flood Advisory	MOB	Escambia, Okaloosa, Santa Rosa	11 hr
Nov 18, 6:53 AM CST	Special Weather Statement	MOB	Okaloosa	67 min
Nov 18, 7:00 AM CST	Special Weather Statement	MOB	Okaloosa	60 min
Nov 18, 7:07 AM CST	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	13 min
Nov 18, 7:50 AM CST	Severe Thunderstorm Warning	MOB	Okaloosa	40 min
Nov 18, 8:57 AM CST	Special Weather Statement	MOB	Okaloosa	63 min
Nov 18, 9:09 AM CST	Severe Thunderstorm Warning	MOB	Okaloosa	51 min
Nov 18, 10:57 AM CST	Severe Thunderstorm Warning	MOB	Escambia	48 min
Nov 18, 11:41 AM CST	Tornado Warning	MOB	Okaloosa	30 min
Nov 18, 11:43 AM CST	Special Weather Statement	MOB	Escambia	47 min
Nov 18, 12:29 PM CST	Special Weather Statement	MOB	Santa Rosa	61 min

Nearby

Tornado Warnings in Florida, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.