Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 60, NWS Mobile, AL

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

NWS Mobile, AL issued this severe thunderstorm warning at Feb 23, 2016, 9:29 PM CST for Okaloosa County, Santa Rosa County, Florida. It was in force for 46 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, 9:29 PM CST (03:29 UTC)
Expired: Feb 23, 2016, 10:15 PM CST
In force: 46 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 03:33 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.

Issued	Product	Office	Lasted
Feb 23, 2:13 PM CST	Tornado Watch PDS	SPC	8 hr
Feb 23, 8:08 PM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.5 hours before the alert went out and 218 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: 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.

275 
WUUS54 KMOB 240329
SVRMOB
FLC091-113-240415-
/O.NEW.KMOB.SV.W.0060.160224T0329Z-160224T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
929 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...
  SOUTHERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1015 PM CST

* AT 929 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR NAVARRE
  BEACH...OR 9 MILES SOUTHWEST OF MARY ESTHER...MOVING NORTHEAST AT 45
  MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  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...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

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

&&

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

LAT...LON 3040 8666 3041 8666 3040 8690 3067 8651
      3069 8639 3045 8639 3050 8645 3051 8642
      3052 8650 3051 8649 3046 8649 3043 8661
      3040 8660 3040 8658 3037 8692
TIME...MOT...LOC 0329Z 236DEG 38KT 3034 8681 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

BUTTS

3 follow-up statements

086 
WWUS54 KMOB 240347
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
947 PM CST TUE FEB 23 2016

FLC113-240356-
/O.CAN.KMOB.SV.W.0060.000000T0000Z-160224T0415Z/
SANTA ROSA FL-
947 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SANTA ROSA COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

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

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3041 8680 3044 8680 3049 8668 3067 8651
      3069 8639 3045 8640 3050 8645 3051 8642
      3052 8650 3051 8649 3046 8649 3044 8658
      3046 8660 3043 8661 3040 8660 3040 8669
TIME...MOT...LOC 0346Z 236DEG 38KT 3044 8664 

$$

FLC091-240415-
/O.CON.KMOB.SV.W.0060.000000T0000Z-160224T0415Z/
OKALOOSA FL-
947 PM CST TUE FEB 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CST
FOR SOUTHERN OKALOOSA COUNTY...

AT 946 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER WRIGHT...MOVING
NORTHEAST AT 45 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

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

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

&&

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

LAT...LON 3041 8680 3044 8680 3049 8668 3067 8651
      3069 8639 3045 8640 3050 8645 3051 8642
      3052 8650 3051 8649 3046 8649 3044 8658
      3046 8660 3043 8661 3040 8660 3040 8669
TIME...MOT...LOC 0346Z 236DEG 38KT 3044 8664 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

BUTTS

553 
WWUS54 KMOB 240359
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
959 PM CST TUE FEB 23 2016

FLC091-240415-
/O.CON.KMOB.SV.W.0060.000000T0000Z-160224T0415Z/
OKALOOSA FL-
959 PM CST TUE FEB 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CST
FOR SOUTHEASTERN OKALOOSA COUNTY...

AT 958 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER VALPARAISO...
MOVING NORTHEAST AT 45 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

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

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

&&

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

LAT...LON 3041 8672 3044 8668 3047 8662 3067 8648
      3069 8639 3045 8640 3050 8645 3051 8642
      3052 8650 3051 8649 3046 8649 3044 8658
      3046 8660 3043 8661 3040 8660 3040 8669
TIME...MOT...LOC 0358Z 236DEG 38KT 3051 8651 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

BUTTS

500 
WWUS54 KMOB 240416
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1016 PM CST TUE FEB 23 2016

FLC091-240425-
/O.EXP.KMOB.SV.W.0060.000000T0000Z-160224T0415Z/
OKALOOSA FL-
1016 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OKALOOSA COUNTY
HAS EXPIRED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

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

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3041 8672 3044 8668 3047 8662 3067 8648
      3069 8639 3045 8640 3050 8645 3051 8642
      3052 8650 3051 8649 3046 8649 3044 8658
      3046 8660 3043 8661 3040 8660 3040 8669
TIME...MOT...LOC 0412Z 236DEG 38KT 3051 8651 

$$

BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 23, 7:13 PM CST	Tornado Warning Considerable damage threat	MOB	Escambia	62 min
Feb 23, 7:23 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	67 min
Feb 23, 7:28 PM CST	Areal Flood Advisory	MOB	Escambia	2 hr
Feb 23, 8:05 PM CST	Tornado Warning	MOB	Okaloosa, Santa Rosa	25 min
Feb 23, 8:12 PM CST	Tornado Warning Considerable damage threat	MOB	Escambia, Santa Rosa	33 min
Feb 23, 8:30 PM CST	Flash Flood Warning	MOB	Escambia	2 hr
Feb 23, 8:31 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa	29 min
Feb 23, 8:39 PM CST	Tornado Warning	MOB	Okaloosa	36 min
Feb 23, 8:43 PM CST	Tornado Warning	MOB	Okaloosa, Santa Rosa	32 min
Feb 23, 9:09 PM CST	Tornado Warning	MOB	Okaloosa	21 min
Feb 23, 9:32 PM CST	Flash Flood Warning	MOB	Okaloosa	3 hr
Feb 23, 10:19 PM CST	Special Weather Statement	MOB	Okaloosa	41 min
Feb 24, 2:39 AM CST	River Flood Warning	MOB	Okaloosa	4 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.