Alert archive / Florida / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 310, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 24, 2009, 7:00 PM CST for Okaloosa County, Santa Rosa County, Florida. It was in force for 60 min. 3 reports 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, 7:00 PM CST (01:00 UTC)
- Expired
- Dec 24, 2009, 8:00 PM CST
- In force
- 60 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 100 km from the middle of the area, began a volume at 01:00 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 |
|---|---|---|---|
| Dec 24, 7:30 PM CST | TSTM WND DMG | 4 W Mary Esther, FL | PATIO COLLAPSED AT RESIDENCE IN THE FLOROSA COMMUNITY. |
| Dec 24, 7:42 PM CST | TSTM WND DMG | 2 Wnw Fort Walton Beach, FL | EXTERIOR DAMAGE TO APARTMENT COMPLEX WITH BRICK SIDING TORN OFF. TREE AND POWER LINES ALSO BLOWN DOWN. LARGE METAL 5 FT BY 8 FT FIXED METAL ADVERTISING SIGN ALSO DESTROYED NEARBY. |
| Dec 24, 7:42 PM CST | TSTM WND DMG | 4 W Fort Walton Beach, FL | TREE BLOWN DOWN AT MARY ESTHER CUROFF AND JONQUIL AVENUE IN FORT WALTON. |
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 |
|---|---|---|---|
| Dec 24, 5:37 PM CST | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.0 hours before the alert went out and 255 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KMOB 250100
SVRMOB
FLC091-113-250200-
/O.NEW.KMOB.SV.W.0310.091225T0100Z-091225T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
700 PM CST THU DEC 24 2009
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
OKALOOSA COUNTY IN NORTHWEST FLORIDA...
THIS INCLUDES THE CITIES OF...FORT WALTON BEACH...CRESTVIEW...
SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
THIS INCLUDES THE CITY OF NAVARRE...
* UNTIL 800 PM CST
* AT 657 PM CST...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS OVER 60
MPH. THESE STORMS WERE ALONG A LINE EXTENDING FROM 2 MILES EAST OF
DIXONVILLE TO 4 MILES SOUTHWEST OF ORIOLE BEACH...OR ALONG A LINE
EXTENDING FROM 9 MILES SOUTHEAST OF BREWTON TO 8 MILES SOUTHEAST OF
PENSACOLA...AND MOVING EAST AT 25 MPH.
* THESE SEVERE THUNDERSTORMS WILL BE NEAR...
BAGDAD BY 705 PM CST...
MCLELLAN BY 715 PM CST...
MUNSON BY 720 PM CST...
HAROLD BY 725 PM CST...
NAVARRE BY 735 PM CST...
GALLIVER...CANNON TOWN AND BAKER BY 750 PM CST...
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3035 8721 3039 8718 3041 8710 3041 8703
3046 8693 3051 8703 3045 8706 3044 8709
3052 8710 3059 8716 3100 8709 3099 8644
3043 8656 3044 8658 3039 8656 3038 8685
3040 8687 3040 8691 3034 8718
TIME...MOT...LOC 0100Z 262DEG 21KT 3100 8698 3032 8711
$$3 follow-up statements
000
WWUS54 KMOB 250123
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
723 PM CST THU DEC 24 2009
FLC091-113-250200-
/O.CON.KMOB.SV.W.0310.000000T0000Z-091225T0200Z/
OKALOOSA FL-SANTA ROSA FL-
723 PM CST THU DEC 24 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CST
FOR EASTERN SANTA ROSA AND OKALOOSA COUNTIES...
AT 721 PM CST...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
OVER 60 MPH. THESE STORMS WERE ALONG A LINE EXTENDING FROM 9 MILES
NORTH OF MUNSON TO NAVARRE...OR ALONG A LINE EXTENDING FROM 16 MILES
SOUTHEAST OF BREWTON TO NAVARRE...MOVING EAST AT 25 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
GALLIVER BY 745 PM CST...
HOLT...CANNON TOWN AND BAKER BY 750 PM CST...
MILLIGAN...MARY ESTHER...GOOD HOPE AND ESCAMBIA FARMS BY 755 PM
CST...
WRIGHT AND PEADEN BY 800 PM CST...
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3040 8691 3045 8689 3056 8689 3070 8692
3100 8688 3099 8644 3043 8656 3044 8658
3039 8656 3038 8685 3040 8687
TIME...MOT...LOC 0123Z 267DEG 20KT 3099 8683 3039 8688
$$000
WWUS54 KMOB 250139
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
739 PM CST THU DEC 24 2009
FLC113-250148-
/O.CAN.KMOB.SV.W.0310.000000T0000Z-091225T0200Z/
SANTA ROSA FL-
739 PM CST THU DEC 24 2009
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SANTA ROSA COUNTY IS
CANCELLED...
AT 737 PM CST...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE
LINE OF SEVERE STORMS HAD MOVED EAST OUT OF SANTA ROSA COUNTY...THUS
THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3039 8679 3068 8678 3099 8676 3099 8644
3043 8656 3044 8658 3039 8656
TIME...MOT...LOC 0138Z 267DEG 20KT 3099 8673 3039 8679
$$
FLC091-250200-
/O.CON.KMOB.SV.W.0310.000000T0000Z-091225T0200Z/
OKALOOSA FL-
739 PM CST THU DEC 24 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CST
FOR OKALOOSA COUNTY...
AT 737 PM CST...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
OVER 60 MPH. THESE STORMS WERE ALONG A LINE EXTENDING FROM 6 MILES
WEST OF GOOD HOPE TO 8 MILES WEST OF MARY ESTHER...OR ALONG A LINE
EXTENDING FROM 19 MILES NORTHWEST OF CRESTVIEW TO NAVARRE...MOVING
EAST AT 25 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
GALLIVER BY 745 PM CST...
HOLT...CANNON TOWN AND BAKER BY 750 PM CST...
MILLIGAN...MARY ESTHER...GOOD HOPE AND ESCAMBIA FARMS BY 755 PM
CST...
CRESTVIEW AND OCEAN CITY BY 800 PM CST...
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3039 8679 3068 8678 3099 8676 3099 8644
3043 8656 3044 8658 3039 8656
TIME...MOT...LOC 0138Z 267DEG 20KT 3099 8673 3039 8679
$$000
WWUS54 KMOB 250155
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
755 PM CST THU DEC 24 2009
FLC091-250200-
/O.CON.KMOB.SV.W.0310.000000T0000Z-091225T0200Z/
OKALOOSA FL-
755 PM CST THU DEC 24 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CST
FOR OKALOOSA COUNTY...
AT 754 PM CST...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
OVER 60 MPH. THESE STORMS WERE ALONG A LINE EXTENDING FROM GOOD
HOPE TO MARY ESTHER...OR ALONG A LINE EXTENDING FROM 16 MILES NORTH
OF CRESTVIEW TO 7 MILES WEST OF FORT WALTON BEACH...MOVING EAST AT
25 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
PEADEN...CRESTVIEW...OCEAN CITY AND FORT WALTON BEACH BY 800 PM
CST...
A NEW SEVERE THUNDERSTORM WARNING WILL BE ISSUED SHORTLY FOR
OKALOOSA COUNTY.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3039 8679 3068 8678 3099 8676 3099 8644
3043 8656 3044 8658 3039 8656
TIME...MOT...LOC 0154Z 267DEG 20KT 3099 8663 3039 8669
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 6:18 PM CST | Severe Thunderstorm Warning | MOB | Escambia, Santa Rosa | 57 min |
| Dec 24, 6:36 PM CST | Tornado Warning | MOB | Escambia, Okaloosa, Santa Rosa | 54 min |
| Dec 24, 7:48 PM CST | Tornado Warning | MOB | Okaloosa | 42 min |
| Dec 24, 8:00 PM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 31 min |
| Dec 25, 5:50 AM CST | Fire Weather Watch | MOB | 25 hr |
Nearby
Severe Thunderstorm Warnings in Florida, 2009Every severe thunderstorm warning 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.