Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 11, NWS Mobile, AL

January 22, 2016Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jan 22, 2016, 1:14 AM CST for Okaloosa County, Florida. It was in force for 31 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 22, 2016, 1:14 AM CST (07:14 UTC)
Expired: Jan 22, 2016, 1:45 AM CST
In force: 31 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 59 km from the middle of the area, began a volume at 07:16 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
Jan 22, 1:30 AM CST	TSTM WND DMG	Destin, FL	GAS STATION AWNING PEELED OFF. MINOR AWNING/ROOF DAMAGE SUSTAINED TO BUILDING AT HARBORWALK VILLAGE.

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
Jan 21, 6:53 PM CST	Tornado Watch	SPC	10 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.2 hours before the alert went out and 214 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1670 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 366 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

287 
WUUS54 KMOB 220714
SVRMOB
FLC091-220745-
/O.NEW.KMOB.SV.W.0011.160122T0714Z-160122T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
114 AM CST FRI JAN 22 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 145 AM CST

* AT 113 AM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM CRESTVIEW TO 11 MILES SOUTHEAST OF BAKER TO
  NICEVILLE TO 3 MILES WEST OF DESTIN...MOVING NORTHEAST AT 50 TO55
  MPH.

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO 
           MOBILE HOMES...ROOFS AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  CRESTVIEW...NICEVILLE...DESTIN...VALPARAISO...EGLIN AFB...LAKE
  LORRAINE...SHALIMAR...POSTIL AND FORT WALTON
  BEACH--NAVARRE--WRIGHT.

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 500 AM CST FOR NORTHWESTERN
FLORIDA.

LAT...LON 3043 8655 3040 8656 3040 8653 3039 8658
      3040 8659 3043 8656 3044 8658 3041 8659
      3048 8659 3046 8660 3080 8666 3090 8639
      3045 8639 3045 8642 3041 8644 3038 8640
      3038 8651
TIME...MOT...LOC 0713Z 244DEG 45KT 3077 8660 3069 8654 3054 8650 3038
8655

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

1 follow-up statement

196 
WWUS54 KMOB 220745
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
145 AM CST FRI JAN 22 2016

FLC091-220755-
/O.EXP.KMOB.SV.W.0011.000000T0000Z-160122T0745Z/
OKALOOSA FL-
145 AM CST FRI JAN 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OKALOOSA COUNTY HAS
EXPIRED...

THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...THEREFORE THE
WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST FOR NORTHWESTERN
FLORIDA.

LAT...LON 3043 8655 3040 8656 3040 8653 3039 8658
      3040 8659 3043 8656 3044 8658 3041 8659
      3048 8659 3046 8660 3080 8666 3090 8639
      3045 8639 3045 8642 3041 8644 3038 8640
      3038 8651
TIME...MOT...LOC 0743Z 244DEG 45KT 3077 8660 3069 8654 3054 8650 3038
8655

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 6:17 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa	58 min
Jan 21, 6:54 PM CST	Special Weather Statement	MOB	Escambia	36 min
Jan 21, 8:01 PM CST	Areal Flood Advisory	MOB	Okaloosa	119 min
Jan 21, 8:05 PM CST	River Flood Warning	MOB	Okaloosa	67 hr
Jan 21, 10:38 PM CST	Severe Thunderstorm Warning	MOB	Escambia	37 min
Jan 21, 11:40 PM CST	Wind Advisory	MOB	Escambia, Okaloosa, Santa Rosa	19 hr
Jan 21, 11:46 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	44 min
Jan 22, 12:11 AM CST	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	64 min
Jan 22, 12:32 AM CST	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	43 min
Jan 22, 10:34 AM CST	River Flood Warning	MOB	Escambia	9 days

Nearby

Severe Thunderstorm Warnings in Florida, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.