Alert archive / Florida / Tornado Warnings in 2015

Tornado Warning 37, NWS Mobile, AL

December 28, 2015Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Dec 28, 2015, 10:54 AM CST for Santa Rosa County, Florida. It was in force for 15 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: Dec 28, 2015, 10:54 AM CST (16:54 UTC)
Expired: Dec 28, 2015, 11:09 AM CST
In force: 15 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 104 km from the middle of the area, began a volume at 16:57 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
Dec 28, 6:41 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.9 hours before the alert went out and 251 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: 713 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -107 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

703 
WFUS54 KMOB 281654
TORMOB
FLC113-281730-
/O.NEW.KMOB.TO.W.0037.151228T1654Z-151228T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1054 AM CST MON DEC 28 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1130 AM CST
    
* AT 1054 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 8 MILES NORTHEAST OF MOLINO...MOVING NORTH AT
  45 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  WHITFIELD AROUND 1105 AM CST.
  JAY AROUND 1110 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 3073 8727 3096 8722 3099 8717 3100 8718
      3100 8697 3071 8717
TIME...MOT...LOC 1654Z 195DEG 38KT 3080 8720 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

2 follow-up statements

176 
WWUS54 KMOB 281701
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1101 AM CST MON DEC 28 2015

FLC113-281730-
/O.CON.KMOB.TO.W.0037.000000T0000Z-151228T1730Z/
SANTA ROSA FL-
1101 AM CST MON DEC 28 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM CST FOR
NORTHWESTERN SANTA ROSA COUNTY...
    
AT 1101 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR JAY...OR 8 MILES SOUTHEAST OF CENTURY...MOVING NORTH
AT 45 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  JAY AROUND 1110 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 3085 8721 3097 8719 3098 8719 3099 8717
      3100 8718 3100 8705 3084 8715
TIME...MOT...LOC 1701Z 195DEG 38KT 3087 8718 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

576 
WWUS54 KMOB 281709
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1109 AM CST MON DEC 28 2015

FLC113-281719-
/O.CAN.KMOB.TO.W.0037.000000T0000Z-151228T1730Z/
SANTA ROSA FL-
1109 AM CST MON DEC 28 2015

...THE TORNADO WARNING FOR NORTHWESTERN SANTA ROSA COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FOR SOUTH CENTRAL
ALABAMA AND NORTHWESTERN FLORIDA.

LAT...LON 3085 8721 3097 8719 3098 8719 3099 8717
      3100 8718 3100 8705 3084 8715
TIME...MOT...LOC 1708Z 195DEG 38KT 3096 8715 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 28, 2:38 AM CST	Wind Advisory	MOB	Escambia, Okaloosa, Santa Rosa	9 hr
Dec 28, 3:16 AM CST	High Surf Advisory	MOB	Escambia, Okaloosa, Santa Rosa	15 hr
Dec 28, 7:16 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	59 min
Dec 28, 8:16 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	2 min
Dec 28, 8:19 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	41 min
Dec 28, 8:39 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	51 min
Dec 28, 9:06 AM CST	Tornado Warning	MOB	Escambia	39 min
Dec 28, 9:20 AM CST	River Flood Warning	MOB	Okaloosa	6 days
Dec 28, 9:30 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	45 min
Dec 28, 9:43 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	30 min
Dec 28, 9:52 AM CST	Special Weather Statement	MOB	Escambia	53 min
Dec 28, 10:27 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	33 min
Dec 28, 10:48 AM CST	Special Weather Statement	MOB	Escambia, Santa Rosa	57 min
Dec 28, 11:24 AM CST	Special Weather Statement	MOB	Escambia	36 min
Dec 28, 12:02 PM CST	Special Weather Statement	MOB	Okaloosa, Santa Rosa	88 min
Dec 28, 12:31 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	44 min
Dec 28, 1:12 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa	48 min
Dec 28, 1:59 PM CST	Areal Flood Advisory	MOB	Okaloosa	3 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.