Alert archive / Florida / Tornado Warnings in 2015

Tornado Warning 11, NWS Mobile, AL

April 25, 2015Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Apr 25, 2015, 6:33 AM CDT for Okaloosa County, Florida. It was in force for 12 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: Apr 25, 2015, 6:33 AM CDT (11:33 UTC)
Expired: Apr 25, 2015, 6:45 AM CDT
In force: 12 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 58 km from the middle of the area, began a volume at 11:34 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
Apr 25, 6:50 AM CDT	TSTM WND DMG	Sse Campton, FL	LARGE DIAMETER TREE WAS UPROOTED AND CAUSED MINOR DAMAGE TO A HOUSE.

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
Apr 25, 5:00 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.6 hours before the alert went out and 211 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: 1874 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 59 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.

851 
WFUS54 KMOB 251133
TORMOB
FLC091-251215-
/O.NEW.KMOB.TO.W.0011.150425T1133Z-150425T1215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
633 AM CDT SAT APR 25 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 715 AM CDT
    
* AT 632 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR LAUREL HILL...OR 9 MILES NORTHEAST OF
  CRESTVIEW...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DORCAS...              GARDEN CITY...         OKALOO...
  CAMPTON...             

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED...IT MEANS STRONG ROTATION HAS BEEN
DETECTED AND A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED
TO DEVELOP SHORTLY.

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

&&

LAT...LON 3075 8639 3085 8657 3093 8654 3094 8640
      3076 8639
TIME...MOT...LOC 1132Z 283DEG 37KT 3088 8649 
$$

1 follow-up statement

926 
WWUS54 KMOB 251145
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
645 AM CDT SAT APR 25 2015

FLC091-251154-
/O.CAN.KMOB.TO.W.0011.000000T0000Z-150425T1215Z/
OKALOOSA FL-
645 AM CDT SAT APR 25 2015

...THE TORNADO WARNING FOR NORTHEASTERN OKALOOSA COUNTY HAS BEEN
CANCELLED...

AT 644 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN
OKALOOSA COUNTY HAS MOVED OUT OF THE WARNED AREA...THUS THE TORNADO
WARNING HAS BEEN CANCELLED.

LAT...LON 3075 8639 3085 8657 3093 8654 3094 8640
      3076 8639
TIME...MOT...LOC 1143Z 283DEG 37KT 3109 8626 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 5:17 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	43 min
Apr 25, 5:41 AM CDT	Tornado Warning	MOB	Escambia, Santa Rosa	34 min
Apr 25, 5:54 AM CDT	Tornado Warning	MOB	Okaloosa, Santa Rosa	36 min
Apr 25, 6:13 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	47 min
Apr 25, 6:21 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	39 min
Apr 25, 6:59 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	27 min
Apr 25, 7:05 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	3 hr
Apr 25, 3:26 PM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	64 min
Apr 25, 3:48 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	57 min
Apr 25, 3:57 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	53 min
Apr 25, 4:38 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	26 min
Apr 25, 4:43 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	24 min

Nearby

Tornado Warnings in Florida, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.