Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 1, NWS Mobile, AL

January 21, 2016Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jan 21, 2016, 6:17 PM CST for Okaloosa County, Florida. It was in force for 58 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 21, 2016, 6:17 PM CST (00:17 UTC)
Expired: Jan 21, 2016, 7:15 PM CST
In force: 58 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 65 km from the middle of the area, began a volume at 00:20 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 21, 6:33 PM CST	HAIL 0.25	5 W Eglin Afb, FL	REPORTS OF PEA SIZED HAIL NEAR FT. WALTON BEACH. TIME ESTIMATED VIA RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.3 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-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.

786 
WUUS54 KMOB 220017
SVRMOB
FLC091-220115-
/O.NEW.KMOB.SV.W.0001.160122T0017Z-160122T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
617 PM CST THU JAN 21 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 715 PM CST

* AT 616 PM CST...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST
  OF NAVARRE BEACH...OR 8 MILES SOUTHWEST OF MARY ESTHER...MOVING
  NORTHEAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CRESTVIEW...FORT WALTON BEACH...NICEVILLE...VALPARAISO...MARY
  ESTHER...OCEAN CITY...EGLIN AFB...LAKE LORRAINE...WRIGHT...
  SHALIMAR...CINCO BAYOU AND FORT WALTON BEACH--NAVARRE--WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3041 8666 3040 8679 3053 8680 3080 8666
      3069 8639 3061 8639 3051 8648 3052 8650
      3050 8649 3043 8656 3043 8659 3046 8660
      3043 8661 3040 8660 3040 8658 3039 8659
      3039 8680
TIME...MOT...LOC 0016Z 216DEG 22KT 3034 8677 

HAIL...1.00IN
WIND...60MPH
 
$$

BUTTS

3 follow-up statements

260 
WWUS54 KMOB 220039
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
639 PM CST THU JAN 21 2016

FLC091-220115-
/O.CON.KMOB.SV.W.0001.000000T0000Z-160122T0115Z/
OKALOOSA FL-
639 PM CST THU JAN 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CST
FOR SOUTHERN OKALOOSA COUNTY...

AT 638 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER WRIGHT...
MOVING NORTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CRESTVIEW...FORT WALTON BEACH...NICEVILLE...VALPARAISO...MARY
ESTHER...OCEAN CITY...EGLIN AFB...LAKE LORRAINE...WRIGHT...
SHALIMAR...CINCO BAYOU AND FORT WALTON BEACH--NAVARRE--WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3040 8677 3052 8674 3080 8666 3069 8639
      3061 8639 3051 8648 3052 8650 3050 8649
      3043 8656 3043 8659 3046 8660 3043 8661
      3040 8660 3040 8658 3039 8659 3039 8677
      3041 8666
TIME...MOT...LOC 0038Z 224DEG 26KT 3045 8663 

HAIL...1.00IN
WIND...60MPH
 
$$

BUTTS

937 
WWUS54 KMOB 220101
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
701 PM CST THU JAN 21 2016

FLC091-220115-
/O.CON.KMOB.SV.W.0001.000000T0000Z-160122T0115Z/
OKALOOSA FL-
701 PM CST THU JAN 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CST
FOR SOUTHEASTERN OKALOOSA COUNTY...

AT 701 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER NICEVILLE...
MOVING NORTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
FORT WALTON BEACH...NICEVILLE...VALPARAISO...OCEAN CITY...EGLIN
AFB...LAKE LORRAINE...SHALIMAR...CINCO BAYOU AND FORT WALTON
BEACH--NAVARRE--WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO A
PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR NORTHWESTERN
FLORIDA.

LAT...LON 3044 8664 3053 8659 3074 8651 3069 8639
      3061 8639 3051 8648 3052 8650 3050 8649
      3043 8656 3043 8659 3046 8660 3043 8661
      3040 8660 3040 8658 3039 8659 3041 8666
TIME...MOT...LOC 0101Z 229DEG 24KT 3052 8649 

HAIL...1.00IN
WIND...60MPH
 
$$

BUTTS

483 
WWUS54 KMOB 220112
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
712 PM CST THU JAN 21 2016

FLC091-220121-
/O.EXP.KMOB.SV.W.0001.000000T0000Z-160122T0115Z/
OKALOOSA FL-
712 PM CST THU JAN 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OKALOOSA COUNTY
WILL EXPIRE AT 715 PM CST...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS
WEAKENEDANDWILL SHORTLY MOVE OUT OF THE WARNED AREA. THEREFORE THE
WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR NORTHWESTERN
FLORIDA.

LAT...LON 3044 8664 3053 8659 3074 8651 3069 8639
      3061 8639 3051 8648 3052 8650 3050 8649
      3043 8656 3043 8659 3046 8660 3043 8661
      3040 8660 3040 8658 3039 8659 3041 8666
TIME...MOT...LOC 0111Z 216DEG 22KT 3052 8649 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 1:14 AM CST	Severe Thunderstorm Warning	MOB	Okaloosa	31 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.