Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 124, NWS Mobile, AL

September 4, 2011Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Sep 4, 2011, 11:53 PM CDT for Santa Rosa County, Florida. It was in force for 67 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
Sep 4, 2011, 11:53 PM CDT (04:53 UTC)
Expired
Sep 5, 2011, 1:00 AM CDT
In force
67 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 101 km from the middle of the area, began a volume at 04:55 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
Sep 4, 9:42 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 4.9 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, Tallahassee Rgnl, FL at 00:00Z on 2011-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 289 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 2011-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
289 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

718 
WFUS54 KMOB 050453
TORMOB
FLC113-050600-
/O.NEW.KMOB.TO.W.0124.110905T0453Z-110905T0600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1153 PM CDT SUN SEP 4 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 100 AM CDT

* AT 1150 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTH OF
  MILTON...OR 3 MILES SOUTHEAST OF PEA RIDGE...MOVING NORTH AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITING FIELD...      WHITFIELD...          SPRINGHILL...
  SKYLINE...            ROEVILLE...           POINT BAKER...
  PEA RIDGE...          FIDELIS...            EAST MILTON...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 24 AND 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 MANUFACTURED 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3051 8697 3053 8701 3054 8702 3054 8703
      3057 8711 3100 8706 3100 8679 3094 8679
TIME...MOT...LOC 0453Z 197DEG 27KT 3061 8705

$$
5 follow-up statements
836 
WWUS54 KMOB 050504
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1204 AM CDT MON SEP 5 2011

FLC113-050600-
/O.CON.KMOB.TO.W.0124.000000T0000Z-110905T0600Z/
SANTA ROSA FL-
1204 AM CDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHEASTERN SANTA ROSA COUNTY...

AT 1159 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THE CIRCULATION WAS STRENGTHENING NEAR 
MILTON...MOVING NORTH AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ROEVILLE...WHITING FIELD...INDIAN FORD...SPRINGHILL...WHITFIELD...
MUNSON...BERRYDALE...SIMMONS CROSSING...FIDELIS...DIXONVILLE...SANTA
MARIA...SELLERSVILLE...MCLELLAN AND BELANDVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3064 8710 3100 8706 3100 8679 3094 8679
      3062 8693 3060 8706
TIME...MOT...LOC 0504Z 197DEG 27KT 3068 8702

$$
579 
WWUS54 KMOB 050518
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1218 AM CDT MON SEP 5 2011

FLC113-050600-
/O.CON.KMOB.TO.W.0124.000000T0000Z-110905T0600Z/
SANTA ROSA FL-
1218 AM CDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHEASTERN SANTA ROSA COUNTY...

AT 1213 AM CDT...RADAR INDICATED A POSSIBLE TORNADO NEAR WHITING 
FIELD...OR 7 MILES NORTHEAST OF MILTON...MOVING NORTH AT 30 MPH. THE 
STORM WILL MOVE INTO RURAL AREAS OF SANTA ROSA COUNTY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SPRINGHILL...WHITFIELD...MUNSON...BERRYDALE...SIMMONS CROSSING...
FIDELIS...DIXONVILLE...SANTA MARIA...SELLERSVILLE...MCLELLAN AND
BELANDVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3068 8703 3074 8707 3100 8706 3100 8679
      3094 8679 3072 8689
TIME...MOT...LOC 0517Z 197DEG 27KT 3075 8700

$$
821 
WWUS54 KMOB 050530
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1230 AM CDT MON SEP 5 2011

FLC113-050600-
/O.CON.KMOB.TO.W.0124.000000T0000Z-110905T0600Z/
SANTA ROSA FL-
1230 AM CDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHEASTERN SANTA ROSA COUNTY...

AT 1227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO LOCATED 6 MILES WEST OF MUNSON...MOVING 
NORTH AT 30 MPH. THE STORM WILL MOVE OVER RURAL SECTIONS OF 
NORTHEAST SANTA ROSA COUNTY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIMMONS
CROSSING...SANTA MARIA...SELLERSVILLE...MCLELLAN AND BELANDVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3080 8686 3077 8698 3081 8702 3100 8700
      3100 8679 3094 8679
TIME...MOT...LOC 0530Z 197DEG 27KT 3084 8697

$$
980 
WWUS54 KMOB 050543
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1243 AM CDT MON SEP 5 2011

FLC113-050600-
/O.CON.KMOB.TO.W.0124.000000T0000Z-110905T0600Z/
SANTA ROSA FL-
1243 AM CDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHEASTERN SANTA ROSA COUNTY...

AT 1237 AM CDT...RADAR INDICATED A POSSIBLE NEAR SIMMONS 
CROSSING...OR 16 MILES SOUTH OF EAST BREWTON...MOVING NORTH AT 25 
MPH. THE STORM WILL MOVE OVER RURAL NORTHEAST SECTIONS OF SANTA ROSA 
COUNTY THROUGH 9 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SANTA
MARIA...SELLERSVILLE...MCLELLAN AND BELANDVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3092 8681 3091 8680 3086 8684 3085 8684
      3085 8697 3089 8701 3100 8700 3100 8679
      3094 8679
TIME...MOT...LOC 0541Z 200DEG 22KT 3089 8695

$$
145 
WWUS54 KMOB 050555
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1255 AM CDT MON SEP 5 2011

FLC113-050603-
/O.EXP.KMOB.TO.W.0124.000000T0000Z-110905T0600Z/
SANTA ROSA FL-
1255 AM CDT MON SEP 5 2011

...THE TORNADO WARNING FOR NORTHEASTERN SANTA ROSA COUNTY HAS BEEN 
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3092 8681 3091 8680 3086 8684 3085 8684
      3085 8697 3089 8701 3100 8700 3100 8679
      3094 8679
TIME...MOT...LOC 0553Z 200DEG 22KT 3096 8692

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 9:12 PM CDTTornado WarningMOBEscambia, Santa Rosa63 min
Sep 4, 9:58 PM CDTHigh Wind WarningMOB21 hr
Sep 4, 9:58 PM CDTWind AdvisoryMOB24 hr
Sep 4, 10:24 PM CDTCoastal Flood AdvisoryMOB15 hr
Sep 4, 10:24 PM CDTRip Current StatementMOB21 hr
Sep 4, 10:24 PM CDTHigh Surf AdvisoryMOB21 hr
Sep 5, 1:07 AM CDTTornado WarningMOBEscambia, Santa Rosa53 min
Sep 5, 2:24 AM CDTRiver Flood WarningMOBEscambia15 hr
Sep 5, 5:11 AM CDTTornado WarningMOBOkaloosa64 min
Sep 5, 7:23 AM CDTAreal Flood WarningMOBEscambia, Okaloosa, Santa Rosa12 hr
Sep 5, 8:40 AM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa65 min
Sep 5, 9:16 AM CDTTornado WarningMOBOkaloosa44 min
Sep 5, 9:56 AM CDTTornado WarningMOBEscambia34 min
Sep 5, 9:59 AM CDTTornado WarningMOBOkaloosa61 min
Sep 5, 10:35 AM CDTTornado WarningMOBEscambia40 min
Sep 5, 10:39 AM CDTFlash Flood WarningMOBOkaloosa111 min
Sep 5, 10:58 AM CDTTornado WarningMOBOkaloosa62 min
Sep 5, 12:54 PM CDTCoastal Flood WarningMOB6 hr
Sep 5, 1:14 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa39 min

Nearby

Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011

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.