Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 37, NWS Mobile, AL

August 28, 2012Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Aug 28, 2012, 5:09 PM CDT for Santa Rosa County, Florida. It was in force for 51 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
Aug 28, 2012, 5:09 PM CDT (22:09 UTC)
Expired
Aug 28, 2012, 6:00 PM CDT
In force
51 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 107 km from the middle of the area, began a volume at 22:09 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.

IssuedProductOfficeLasted
Aug 28, 9:46 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.2 hours before the alert went out and 258 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, Slidell Radar S, LA at 12:00Z on 2012-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 41 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, Slidell Radar S, LA at 12:00Z on 2012-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 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
41 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
266 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.

378 
WFUS54 KMOB 282209
TORMOB
FLC113-282300-
/O.NEW.KMOB.TO.W.0037.120828T2209Z-120828T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
509 PM CDT TUE AUG 28 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 600 PM CDT

* AT 504 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 12 MILES SOUTHEAST OF BAGDAD...OR 2 MILES
  NORTHEAST OF HOLLEY...MOVING NORTHWEST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          WHITING FIELD...      ROEVILLE...
  POINT BAKER...        HOLLEY...             MILTON...
  BAGDAD...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 24 AND 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3044 8697 3045 8695 3050 8703 3054 8701
      3054 8703 3051 8704 3080 8730 3082 8729
      3084 8731 3097 8684 3046 8680 3041 8695
TIME...MOT...LOC 2209Z 152DEG 33KT 3052 8691

$$
1 follow-up statement
004 
WWUS54 KMOB 282224
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
524 PM CDT TUE AUG 28 2012

FLC113-282300-
/O.CON.KMOB.TO.W.0037.000000T0000Z-120828T2300Z/
SANTA ROSA FL-
524 PM CDT TUE AUG 28 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SANTA
ROSA COUNTY...

AT 524 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 4 MILES EAST OF BAGDAD...OR 4 MILES SOUTH OF ROEVILLE...
MOVING NORTHWEST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          WHITING FIELD...      ROEVILLE...
  POINT BAKER...        HOLLEY...             MILTON...
  BAGDAD...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 23 AND 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3044 8697 3045 8695 3050 8703 3054 8701
      3054 8703 3051 8704 3080 8730 3082 8729
      3084 8731 3097 8684 3046 8680 3041 8695
TIME...MOT...LOC 2224Z 152DEG 33KT 3064 8699

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 4:45 PM CDTTornado WarningMOBEscambia, Santa Rosa30 min

Nearby

Tornado Warnings in Florida, 2012Every tornado warning in 2012Tornadoes in 2012

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.