Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 62, NWS Mobile, AL

December 15, 2007Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Dec 15, 2007, 4:05 PM CST 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
Dec 15, 2007, 4:05 PM CST (22:05 UTC)
Expired
Dec 15, 2007, 4:45 PM CST
In force
40 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 62 km from the middle of the area, began a volume at 22:07 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, 10.1 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 2007-12-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 2007-12-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 152205
TORMOB
FLC091-152245-
/O.NEW.KMOB.TO.W.0062.071215T2205Z-071215T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
405 PM CST SAT DEC 15 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITIES OF...FORT WALTON BEACH...DESTIN...

* UNTIL 445 PM CST

* AT 403 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MARY
  ESTHER...OR ABOUT NEAR FORT WALTON BEACH...MOVING NORTHEAST AT 45
  MPH.

* THE TORNADO WILL BE NEAR...
  EGLIN AFB AND DESTIN BY 410 PM CST...
  VALPARAISO...POSTIL AND NICEVILLE BY 415 PM CST...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3042 8675 3071 8643 3051 8640 3046 8645
      3046 8647 3045 8650 3044 8647 3037 8654
      3039 8661 3038 8670
TIME...MOT...LOC 2205Z 225DEG 42KT 3043 8660

$$
1 follow-up statement
000 
WWUS54 KMOB 152223
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
421 PM CST SAT DEC 15 2007

FLC091-152245-
/O.CON.KMOB.TO.W.0062.000000T0000Z-071215T2245Z/
OKALOOSA FL-
421 PM CST SAT DEC 15 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CST FOR
SOUTHEASTERN OKALOOSA COUNTY...

AT 416 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THE STORM CONTAINING THE POSSIBLE 
TORNADO WAS ABOUT 9 MILES NORTH OF DESTIN...MOVING NORTHEAST AT 40 
MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3047 8664 3064 8644 3052 8640 3046 8645
      3045 8650 3044 8647 3045 8651 3042 8658
TIME...MOT...LOC 2221Z 226DEG 36KT 3057 8643

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 11:19 AM CSTSpecial Marine WarningMOB56 min
Dec 15, 1:06 PM CSTSpecial Marine WarningMOB24 min
Dec 15, 1:27 PM CSTSpecial Marine WarningMOB63 min
Dec 15, 1:53 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa52 min
Dec 15, 2:33 PM CSTTornado WarningMOBOkaloosa, Santa Rosa42 min
Dec 15, 3:12 PM CSTFire Weather WatchMOBWalton38 hr
Dec 15, 3:12 PM CSTRed Flag WarningMOBWalton24 hr
Dec 15, 3:20 PM CSTWind AdvisoryMOB20 hr
Dec 15, 3:27 PM CSTSpecial Marine WarningMOB63 min

Nearby

Tornado Warnings in Florida, 2007Every tornado warning in 2007Tornadoes in 2007

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.