Alert archive / Florida / Tornado Warnings in 2011
Tornado Warning 101, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Sep 4, 2011, 4:15 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 60 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
- Sep 4, 2011, 4:15 AM CDT (09:15 UTC)
- Expired
- Sep 4, 2011, 5:15 AM CDT
- In force
- 60 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), 96 km from the middle of the area, began a volume at 09:15 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 4, 4:52 AM CDT | TSTM WND GST 59 | Mary Esther, FL | HURLBERT ASOS REPORTED A WIND GUST OF 59 MPH. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 3, 9:43 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.3 hours before the alert went out and 251 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.
- Mixed-layer CAPE
- 31 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1385 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
943
WFUS54 KMOB 040915
TORMOB
FLC033-091-113-041015-
/O.NEW.KMOB.TO.W.0101.110904T0915Z-110904T1015Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
415 AM CDT SUN SEP 4 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
WESTERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
* UNTIL 515 AM CDT
* AT 411 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO ALONG A
LINE EXTENDING FROM 6 MILES NORTHEAST OF GONZALEZ TO 10 MILES
SOUTHEAST OF BAGDAD TO 17 MILES SOUTHWEST OF MARY ESTHER...MOVING
EAST AT 30 MPH. THIS LINE HAS A HISTORY OF PRODUCING BRIEF
TORNADOES WITH LITTLE OR NO WARNING.
* THIS THUNDERSTORM LINE WILL MOVE THROUGH EASTERN SANTA ROSA AND
WESTERN OKALOOSA COUNTIES DURING THE NEXT HOUR.
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 SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3035 8706 3039 8687 3038 8707 3041 8708
3045 8695 3050 8703 3054 8703 3043 8710
3051 8710 3058 8718 3099 8745 3100 8678
3048 8648 3041 8658 3042 8644 3038 8641
3039 8668 3034 8705
TIME...MOT...LOC 0913Z 270DEG 26KT 3065 8723 3055 8704
3042 8692 3027 8686
$$3 follow-up statements
656
WWUS54 KMOB 040937
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
437 AM CDT SUN SEP 4 2011
FLC033-091-113-041015-
/O.CON.KMOB.TO.W.0101.000000T0000Z-110904T1015Z/
OKALOOSA FL-SANTA ROSA FL-ESCAMBIA FL-
437 AM CDT SUN SEP 4 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
NORTHEASTERN ESCAMBIA...SANTA ROSA AND WESTERN OKALOOSA COUNTIES...
AT 429 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF TORNADO PRODUCING STORMS ALONG A LINE EXTENDING
FROM 15 MILES NORTH OF MILTON TO 12 MILES EAST OF MILTON TO 8 MILES
TO 9 MILES WEST OF MARY ESTHER...MOVING NORTHEAST AT 45 MPH.
NOT ONLY DOES RADAR INDICATE MULTIPLE CIRCULATIONS WITH THE STRONGER
THUNDERSTORMS ALONG THE LINE...IT ALSO IS MEASURING STRAIGHT LINE
WINDS UP TO BETWEEN 60 AND 70 MPH.
THE LINE WILL CONTINUE MOVING ACROSS EASTERN PORTIONS OF SANTA ROSA
AND WESTERN PORTIONS OF OKALOOSA COUNTIES DURING THE NEXT HALF HOUR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3035 8705 3039 8687 3038 8707 3041 8707
3045 8695 3050 8703 3054 8703 3044 8710
3051 8710 3058 8718 3099 8745 3100 8678
3048 8648 3041 8658 3042 8644 3038 8641
3039 8668 3034 8705
TIME...MOT...LOC 0933Z 216DEG 40KT 3089 8703 3078 8691
3065 8683 3050 8691 3042 8677
$$173
WWUS54 KMOB 040945
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
445 AM CDT SUN SEP 4 2011
FLC033-040952-
/O.CAN.KMOB.TO.W.0101.000000T0000Z-110904T1015Z/
ESCAMBIA FL-
445 AM CDT SUN SEP 4 2011
...THE TORNADO WARNING FOR NORTHEASTERN ESCAMBIA COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3038 8675 3043 8684 3045 8695 3045 8696
3050 8699 3061 8704 3076 8709 3099 8710
3100 8678 3048 8648 3041 8658 3042 8644
3038 8642 3039 8668 3038 8672
TIME...MOT...LOC 0942Z 209DEG 38KT 3094 8700 3086 8685
3073 8682 3060 8689 3051 8674 3043 8668
$$
FLC091-113-041015-
/O.CON.KMOB.TO.W.0101.000000T0000Z-110904T1015Z/
OKALOOSA FL-SANTA ROSA FL-
445 AM CDT SUN SEP 4 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR EASTERN
SANTA ROSA AND WESTERN OKALOOSA COUNTIES...
AT 438 AM CDT...A LINE OF TORNADO PRODUCING THUNDERSTORMS WAS
LOCATED ALONG A LINE EXTENDING FROM 13 MILES SOUTH OF EAST BREWTON
TO 17 MILES NORTHEAST OF MILTON TO MARY ESTHER...AND WAS MOVING
NORTHEAST AT 45 MPH.
RADAR INDICATED CIRCULATIONS WERE NEAR MUNSON...SPRINGHILL...BROXSON
AND MARY ESTHER. IN ADDITION...RADAR INDICATED 50 TO 60 MPH STRAIGHT
LINE WINDS ALONG BOWING SEGMENTS OF THIS LINE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3038 8675 3043 8684 3045 8695 3045 8696
3050 8699 3061 8704 3076 8709 3099 8710
3100 8678 3048 8648 3041 8658 3042 8644
3038 8642 3039 8668 3038 8672
TIME...MOT...LOC 0942Z 209DEG 38KT 3094 8700 3086 8685
3073 8682 3060 8689 3051 8674 3043 8668
$$708
WWUS54 KMOB 041016
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
516 AM CDT SUN SEP 4 2011
FLC091-113-041026-
/O.EXP.KMOB.TO.W.0101.000000T0000Z-110904T1015Z/
OKALOOSA FL-SANTA ROSA FL-
516 AM CDT SUN SEP 4 2011
...THE TORNADO WARNING FOR EASTERN SANTA ROSA AND WESTERN OKALOOSA
COUNTIES HAS EXPIRED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 400 PM CDT SUNDAY
AFTERNOON FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND
SOUTHEAST MISSISSIPPI.
LAT...LON 3038 8675 3043 8684 3045 8695 3045 8696
3050 8699 3061 8704 3076 8709 3099 8710
3100 8678 3048 8648 3041 8658 3042 8644
3038 8642 3039 8668 3038 8672
TIME...MOT...LOC 0945Z 209DEG 38KT 3097 8698 3089 8683
3076 8680 3063 8687 3054 8672 3046 8666
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 7:53 PM CDT | Areal Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 6 hr |
| Sep 3, 9:11 PM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 12 hr |
| Sep 3, 9:11 PM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 12 hr |
| Sep 3, 9:11 PM CDT | River Flood Warning | MOB | Okaloosa | 49 hr |
| Sep 4, 3:57 AM CDT | Tornado Warning | MOB | Escambia, Santa Rosa | 42 min |
| Sep 4, 5:04 AM CDT | Tornado Warning | MOB | Okaloosa | 41 min |
| Sep 4, 5:36 AM CDT | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 3 hr |
| Sep 4, 9:42 AM CDT | Tornado Warning | MOB | Okaloosa | 33 min |
| Sep 4, 4:15 PM CDT | Tornado Warning | MOB | Escambia | 60 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.