Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 7, NWS Mobile, AL

January 26, 2012Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jan 26, 2012, 12:55 PM CST for Okaloosa County, Santa Rosa County, Florida. It was in force for 50 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
Jan 26, 2012, 12:55 PM CST (18:55 UTC)
Expired
Jan 26, 2012, 1:45 PM CST
In force
50 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), 66 km from the middle of the area, began a volume at 18:55 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
Jan 26, 9:55 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 220 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 12:00Z on 2012-01-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 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 12:00Z on 2012-01-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
53 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
120 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.

429 
WUUS54 KMOB 261855
SVRMOB
FLC091-113-261945-
/O.NEW.KMOB.SV.W.0007.120126T1855Z-120126T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1255 PM CST THU JAN 26 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  SOUTHEASTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 145 PM CST

* AT 1249 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 9 MILES EAST OF MILTON TO 11 MILES WEST OF WRIGHT TO 15 MILES
  SOUTHWEST OF MARY ESTHER...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NAVARRE BEACH...      HOLLEY...             SHALIMAR...
  OCEAN CITY...         LAKE LORRAINE...      FORT WALTON BEACH...
  CINCO BAYOU...        NAVARRE...            HAROLD...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 33 AND 44.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3039 8687 3039 8693 3068 8694 3072 8638
      3045 8639 3044 8642 3048 8646 3042 8659
      3040 8658 3040 8653 3042 8649 3042 8644
      3041 8640 3039 8639 3038 8639 3039 8667
      3037 8692
TIME...MOT...LOC 1855Z 261DEG 36KT 3063 8683 3051 8674
          3031 8679

$$
2 follow-up statements
520 
WWUS54 KMOB 261913
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
113 PM CST THU JAN 26 2012

FLC113-261923-
/O.CAN.KMOB.SV.W.0007.000000T0000Z-120126T1945Z/
SANTA ROSA FL-
113 PM CST THU JAN 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SANTA ROSA COUNTY
IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTH CENTRAL ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3039 8667 3039 8677 3069 8678 3072 8638
      3045 8639 3044 8642 3048 8646 3042 8659
      3040 8658 3040 8653 3042 8649 3042 8644
      3041 8640 3039 8639 3038 8639
TIME...MOT...LOC 1913Z 231DEG 30KT 3075 8678 3072 8667
          3063 8665 3043 8670

$$

FLC091-261945-
/O.CON.KMOB.SV.W.0007.000000T0000Z-120126T1945Z/
OKALOOSA FL-
113 PM CST THU JAN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CST
FOR SOUTHERN OKALOOSA COUNTY...

AT 109 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM 17 MILES NORTHEAST OF MILTON TO 12 MILES 
NORTHWEST OF EGLIN AFB TO 7 MILES NORTHWEST OF EGLIN AFB TO MARY 
ESTHER...MOVING NORTHEAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WRIGHT...CINCO BAYOU...FORT WALTON BEACH...OCEAN CITY...GARNIER...
SHALIMAR...LONGWOOD...LAKE LORRAINE...EGLIN VILLAGE...DESTIN...
VALPARAISO...POSTIL...NICEVILLE...DANA POINT AND SEMINOLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTH CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3039 8667 3039 8677 3069 8678 3072 8638
      3045 8639 3044 8642 3048 8646 3042 8659
      3040 8658 3040 8653 3042 8649 3042 8644
      3041 8640 3039 8639 3038 8639
TIME...MOT...LOC 1913Z 231DEG 30KT 3075 8678 3072 8667
          3063 8665 3043 8670

$$
719 
WWUS54 KMOB 261938
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
138 PM CST THU JAN 26 2012

FLC091-261945-
/O.CON.KMOB.SV.W.0007.000000T0000Z-120126T1945Z/
OKALOOSA FL-
138 PM CST THU JAN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CST
FOR SOUTHEASTERN OKALOOSA COUNTY...

AT 132 PM CST...DOPPLER RADAR INDICATED A LINE OF SEVERE 
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 13 
MILES NORTHWEST OF CRESTVIEW TO 8 MILES NORTH OF CRESTVIEW TO 
CRESTVIEW TO FORT WALTON BEACH...MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
POSTIL...DANA POINT...NICEVILLE AND SEMINOLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTH CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3039 8660 3071 8653 3072 8638 3045 8639
      3044 8642 3048 8646 3042 8659 3040 8658
      3040 8653 3042 8649 3042 8644 3041 8640
      3039 8639 3038 8639
TIME...MOT...LOC 1937Z 224DEG 42KT 3097 8660 3094 8649
          3085 8646 3044 8652

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 26, 9:49 AM CSTAreal Flood AdvisoryMOBEscambia116 min
Jan 26, 12:05 PM CSTAreal Flood AdvisoryMOBEscambia, Okaloosa, Santa Rosa4 hr
Jan 26, 1:07 PM CSTSevere Thunderstorm WarningMOBOkaloosa38 min
Jan 26, 1:46 PM CSTSevere Thunderstorm WarningMOBOkaloosa14 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning 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.