Alert archive / Florida / Tornado Warnings in 2009

Tornado Warning 52, NWS Mobile, AL

December 24, 2009Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Dec 24, 2009, 6:36 PM CST for Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 54 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
Dec 24, 2009, 6:36 PM CST (00:36 UTC)
Expired
Dec 24, 2009, 7:30 PM CST
In force
54 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 87 km from the middle of the area, began a volume at 00:37 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

TimeReportWhereRemark
Dec 24, 7:30 PM CSTTSTM WND DMG4 W Mary Esther, FLPATIO COLLAPSED AT RESIDENCE IN THE FLOROSA COMMUNITY.

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.

IssuedProductOfficeLasted
Dec 24, 5:37 PM CSTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.6 hours before the alert went out and 241 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 00:00Z on 2009-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 00:00Z on 2009-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 500 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
1 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
500 m²/s²
0-3 km storm-relative helicity
677 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.

000 
WFUS54 KMOB 250036
TORMOB
FLC033-091-113-250130-
/O.NEW.KMOB.TO.W.0052.091225T0036Z-091225T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
636 PM CST THU DEC 24 2009

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME SOUTHEASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  SOUTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF FORT WALTON BEACH...
  SOUTHEASTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF NAVARRE...

* UNTIL 730 PM CST

* AT 630 PM CST...NATIONAL WEATHER SERVICE RADAR INDICATED A         
  SEVERE THUNDERSTORM OVER THE GULF OF MEXICO...CAPABLE OF PRODUCING 
  A TORNADO...30 MILES SOUTH OF NAVARRE...MOVING NORTH AT 40 MPH     
  TOWARDS THE BEACHES.

* THE TORNADO WILL BE NEAR...
  NAVARRE BY 715 PM CST

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3038 8699 3038 8697 3039 8699 3043 8698
      3046 8693 3047 8697 3072 8690 3057 8646
      3043 8655 3044 8658 3041 8657 3039 8658
      3040 8674 3036 8700
TIME...MOT...LOC 0032Z 201DEG 34KT 3001 8698

$$
3 follow-up statements
000 
WWUS54 KMOB 250052
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
652 PM CST THU DEC 24 2009

FLC033-091-113-250130-
/O.CON.KMOB.TO.W.0052.000000T0000Z-091225T0130Z/
OKALOOSA FL-ESCAMBIA FL-SANTA ROSA FL-
652 PM CST THU DEC 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
SOUTHEASTERN SANTA ROSA...EXTREME SOUTHEASTERN ESCAMBIA AND SOUTHERN
OKALOOSA COUNTIES...

AT 651 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS 15 MILES SOUTH OF NAVARRE...MOVING NORTH AT 40 MPH.

THE TORNADO WILL BE NEAR...
  NAVARRE BY 710 PM CST...
  
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3038 8699 3038 8697 3039 8699 3043 8698
      3046 8693 3047 8697 3072 8690 3057 8646
      3043 8655 3044 8658 3041 8657 3039 8658
      3040 8674 3036 8700
TIME...MOT...LOC 0052Z 200DEG 36KT 3020 8690

$$
000 
WWUS54 KMOB 250105
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
705 PM CST THU DEC 24 2009

FLC033-091-113-250130-
/O.CON.KMOB.TO.W.0052.000000T0000Z-091225T0130Z/
OKALOOSA FL-ESCAMBIA FL-SANTA ROSA FL-
705 PM CST THU DEC 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
SOUTHEASTERN SANTA ROSA...EXTREME SOUTHEASTERN ESCAMBIA AND SOUTHERN
OKALOOSA COUNTIES...

AT 704 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
STORM POSSIBLY PRODUCING A TORNADO WAS JUST OFFSHORE OF NAVARRE 
BEACH...MOVING NORTH AT 45 MPH.

THE TORNADO WILL BE NEAR...
  7 MILES SOUTHEAST OF HAROLD BY 730 PM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3038 8699 3038 8697 3039 8699 3043 8698
      3046 8693 3047 8697 3072 8690 3057 8646
      3043 8655 3044 8658 3041 8657 3039 8658
      3040 8674 3036 8700
TIME...MOT...LOC 0104Z 196DEG 39KT 3033 8687

$$
000 
WWUS54 KMOB 250121
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
721 PM CST THU DEC 24 2009

FLC033-091-113-250130-
/O.CON.KMOB.TO.W.0052.000000T0000Z-091225T0130Z/
OKALOOSA FL-ESCAMBIA FL-SANTA ROSA FL-
721 PM CST THU DEC 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
SOUTHEASTERN SANTA ROSA...EXTREME SOUTHEASTERN ESCAMBIA AND SOUTHERN
OKALOOSA COUNTIES...

AT 719 PM CST...A CLUSTER OF ROTATING THUNDERSTORMS JUST OFFSHORE OF 
NAVARRE AND MARY ESTHER...MOVING NORTH AND ONSHORE AT 45 MPH.  THESE 
STORMS ARE CAPABLE OF PRODUCING A TORNADO VERY QUICKLY.  

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3038 8699 3038 8697 3039 8699 3043 8698
      3046 8693 3047 8697 3072 8690 3057 8646
      3043 8655 3044 8658 3041 8657 3039 8658
      3040 8674 3036 8700
TIME...MOT...LOC 0119Z 199DEG 43KT 3035 8682

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 6:18 PM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa57 min
Dec 24, 7:00 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa60 min
Dec 24, 7:48 PM CSTTornado WarningMOBOkaloosa42 min
Dec 24, 8:00 PM CSTSevere Thunderstorm WarningMOBOkaloosa31 min
Dec 25, 5:50 AM CSTFire Weather WatchMOB25 hr

Nearby

Tornado Warnings in Florida, 2009Every tornado warning in 2009Tornadoes in 2009

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.