Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Mobile, AL

January 26, 2012Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jan 26, 2012, 1:07 PM CST for Okaloosa County, Florida. It was in force for 38 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, 1:07 PM CST (19:07 UTC)
Expired
Jan 26, 2012, 1:45 PM CST
In force
38 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 73 km from the middle of the area, began a volume at 19:09 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
Jan 26, 9:55 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.1 hours before the alert went out and 227 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.

536 
WUUS54 KMOB 261907
SVRMOB
FLC091-261945-
/O.NEW.KMOB.SV.W.0008.120126T1907Z-120126T1945Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 145 PM CST

* AT 104 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 12 MILES NORTHEAST OF MILTON TO 15 MILES NORTHWEST OF EGLIN
  AFB TO 9 MILES WEST OF EGLIN AFB TO 7 MILES WEST OF MARY ESTHER...
  AND MOVING NORTHEAST AT 45 MPH.

  THIS IS AN EXTENSION TO THE PREVIOUS SEVERE THUNDERSTORM WARNING   
  FURTHER NORTHWARD.

* LOCATIONS IMPACTED INCLUDE...
  LAUREL HILL...        CRESTVIEW...          BAKER...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 43 AND 67.

&&

LAT...LON 3067 8679 3100 8679 3099 8639 3070 8638
TIME...MOT...LOC 1907Z 222DEG 37KT 3075 8686 3072 8675
          3060 8670 3047 8674

$$
1 follow-up statement
129 
WWUS54 KMOB 261940
SVSMOB

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

FLC091-261945-
/O.CON.KMOB.SV.W.0008.000000T0000Z-120126T1945Z/
OKALOOSA FL-
140 PM CST THU JAN 26 2012

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

AT 137 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 15 MILES NORTHWEST OF CRESTVIEW TO 11 MILES 
SOUTHWEST OF FLORALA TO CRESTVIEW...MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DEERLAND AND SVEA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3070 8653 3083 8652 3099 8668 3100 8657
      3099 8639 3076 8638 3074 8639 3074 8638
      3071 8638 3070 8639
TIME...MOT...LOC 1940Z 222DEG 37KT 3101 8659 3098 8648
          3085 8643 3072 8647

$$

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, 12:55 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa50 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.