Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 10, NWS Mobile, AL

January 26, 2012Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jan 26, 2012, 1:46 PM CST for Okaloosa County, Florida. It was in force for 14 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
Jan 26, 2012, 1:46 PM CST (19:46 UTC)
Expired
Jan 26, 2012, 2:00 PM CST
In force
14 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 53 km from the middle of the area, began a volume at 19:46 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

TimeReportWhereRemark
Jan 26, 1:59 PM CSTTSTM WND GST 58Destin, FL

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.

IssuedProductOfficeLasted
Jan 26, 9:55 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.8 hours before the alert went out and 208 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.

102 
WUUS54 KMOB 261946
SVRMOB
FLC091-262000-
/O.NEW.KMOB.SV.W.0010.120126T1946Z-120126T2000Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 200 PM CST

* AT 142 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 6 MILES SOUTHWEST OF FLORALA TO DESTIN...AND MOVING EAST AT 45
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHALIMAR...           LAKE LORRAINE...      VALPARAISO...
  NICEVILLE...          LAUREL HILL...        EGLIN AFB...
  DESTIN...             CRESTVIEW...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 58 AND 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3042 8650 3041 8645 3044 8642 3048 8646
      3041 8660 3042 8661 3099 8650 3099 8639
      3045 8639 3042 8644 3040 8639 3037 8640
      3037 8650
TIME...MOT...LOC 1946Z 270DEG 37KT 3096 8635 3039 8643

$$

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, 1:07 PM CSTSevere Thunderstorm WarningMOBOkaloosa38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.