Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 55, NWS Mobile, AL

February 23, 2016Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Feb 23, 2016, 7:23 PM CST for Okaloosa County, Santa Rosa County, Florida. It was in force for 67 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
Feb 23, 2016, 7:23 PM CST (01:23 UTC)
Expired
Feb 23, 2016, 8:30 PM CST
In force
67 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
70.0 mph

Counties Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 84 km from the middle of the area, began a volume at 01:25 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
Feb 23, 2:13 PM CSTTornado Watch PDSSPC8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.4 hours before the alert went out and 239 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 00:00Z on 2016-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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 00:00Z on 2016-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
100 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

710 
WUUS54 KMOB 240123
SVRMOB
FLC091-113-240230-
/O.NEW.KMOB.SV.W.0055.160224T0123Z-160224T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
723 PM CST TUE FEB 23 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 830 PM CST

* AT 722 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM MIDWAY TO 19 MILES SOUTH OF DESTIN...MOVING NORTHEAST
  AT 55 MPH.

  HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
           TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
           ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  CRESTVIEW...FORT WALTON BEACH...NICEVILLE...DESTIN...VALPARAISO...MARY
  ESTHER...WRIGHT...OCEAN CITY...EGLIN AFB...LAKE LORRAINE...BAKER...
  MIDWAY...SHALIMAR...LAUREL HILL...CINCO BAYOU...NAVARRE...POSTIL...
  HOLLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST FOR NORTHWESTERN
FLORIDA.

LAT...LON 3039 8676 3037 8692 3041 8666 3041 8672
      3039 8710 3040 8710 3044 8709 3040 8707
      3045 8694 3045 8691 3046 8695 3047 8697
      3050 8701 3099 8657 3099 8639 3045 8639
      3044 8642 3038 8640 3040 8667
TIME...MOT...LOC 0122Z 223DEG 49KT 3041 8702 3012 8654 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 7:13 PM CSTTornado Warning Considerable damage threatMOBEscambia62 min
Feb 23, 7:28 PM CSTAreal Flood AdvisoryMOBEscambia2 hr
Feb 23, 8:05 PM CSTTornado WarningMOBOkaloosa, Santa Rosa25 min
Feb 23, 8:12 PM CSTTornado Warning Considerable damage threatMOBEscambia, Santa Rosa33 min
Feb 23, 8:30 PM CSTFlash Flood WarningMOBEscambia2 hr
Feb 23, 8:31 PM CSTSevere Thunderstorm WarningMOBOkaloosa29 min
Feb 23, 8:39 PM CSTTornado WarningMOBOkaloosa36 min
Feb 23, 8:43 PM CSTTornado WarningMOBOkaloosa, Santa Rosa32 min
Feb 23, 9:09 PM CSTTornado WarningMOBOkaloosa21 min
Feb 23, 9:29 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa46 min
Feb 23, 9:32 PM CSTFlash Flood WarningMOBOkaloosa3 hr
Feb 23, 10:19 PM CSTSpecial Weather StatementMOBOkaloosa41 min
Feb 24, 2:39 AM CSTRiver Flood WarningMOBOkaloosa4 days

Nearby

Severe Thunderstorm Warnings in Florida, 2016Every severe thunderstorm warning in 2016

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.