Alert archive / Florida / Tornado Warnings in 2015

Tornado Warning 8, NWS Mobile, AL

April 19, 2015Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Apr 19, 2015, 6:33 AM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 42 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
Apr 19, 2015, 6:33 AM CDT (11:33 UTC)
Expired
Apr 19, 2015, 7:15 AM CDT
In force
42 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 87 km from the middle of the area, began a volume at 11:35 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.6 hours before the alert went out and 241 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2015-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 851 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2015-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
851 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
888 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
132 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.

213 
WFUS54 KMOB 191133
TORMOB
FLC091-113-191215-
/O.NEW.KMOB.TO.W.0008.150419T1133Z-150419T1215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
633 AM CDT SUN APR 19 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...
  NORTHERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 715 AM CDT
    
* AT 633 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR WHITING FIELD...OR 11 MILES NORTHEAST OF
  MILTON...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAUREL HILL...         SPRINGHILL...          INDIAN FORD...
  PEADEN...              ROCK CREEK...          ESCAMBIA FARMS...
  SVEA...                BLACKMAN...            CLEAR SPRINGS...
  SANTA MARIA...         MUNSON...              GOOD HOPE...

LAT...LON 3066 8696 3081 8706 3098 8686 3098 8639
      3095 8639
TIME...MOT...LOC 1133Z 239DEG 17KT 3077 8695 
$$
2 follow-up statements
862 
WWUS54 KMOB 191139
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
639 AM CDT SUN APR 19 2015

FLC091-113-191215-
/O.CON.KMOB.TO.W.0008.000000T0000Z-150419T1215Z/
SANTA ROSA FL-OKALOOSA FL-
639 AM CDT SUN APR 19 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR
NORTHEASTERN SANTA ROSA AND NORTHERN OKALOOSA COUNTIES...

...MUNSON IS IN THE PATH OF THIS STORM...
    
AT 637 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED WAS LOCATED 7 MILES NORTHEAST OF WHITING FIELD...OR 12
MILES NORTHEAST OF MILTON...MOVING NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
LAUREL HILL...         SPRINGHILL...          INDIAN FORD...
PEADEN...              ROCK CREEK...          ESCAMBIA FARMS...
SVEA...                BLACKMAN...            CLEAR SPRINGS...
SANTA MARIA...         MUNSON...              GOOD HOPE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN AND NEAR THE COMMUNITY OF MUNSON SHOULD TAKE COVER NOW. 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF 
A STURDY BUILDING.

&&

LAT...LON 3066 8696 3081 8706 3098 8686 3098 8639
      3095 8639
TIME...MOT...LOC 1137Z 237DEG 17KT 3079 8693 
$$
061 
WWUS54 KMOB 191208
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
708 AM CDT SUN APR 19 2015

FLC091-113-191217-
/O.EXP.KMOB.TO.W.0008.000000T0000Z-150419T1215Z/
SANTA ROSA FL-OKALOOSA FL-
708 AM CDT SUN APR 19 2015

...THE TORNADO WARNING FOR NORTHEASTERN SANTA ROSA AND NORTHERN
OKALOOSA COUNTIES WILL BE ALLOWED TO EXPIRE...

AT 707 AM CDT...ROTATION HAD WEAKENED IN THE STORM THAT PROMPTED THE 
TORNADO WARNING FOR NORTHEASTERN SANTA ROSA AND NORTHERN OKALOOSA 
COUNTIES. THUS THE TORNADO WARNING WILL BE ALLOWED TO EXPIRE AT 715 
AM CDT.

LAT...LON 3066 8696 3081 8706 3098 8686 3098 8639
      3095 8639
TIME...MOT...LOC 1206Z 239DEG 17KT 3079 8693 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 11:03 PM CDTRiver Flood WarningMOBOkaloosa58 hr
Apr 18, 11:06 PM CDTRiver Flood WarningMOBEscambia4 days
Apr 19, 4:53 AM CDTSpecial Weather StatementMOBEscambia22 min
Apr 19, 5:17 AM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa58 min
Apr 19, 6:18 AM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa57 min
Apr 19, 7:06 AM CDTSevere Thunderstorm WarningMOBOkaloosa24 min
Apr 19, 7:52 AM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa113 min
Apr 19, 7:58 AM CDTSpecial Weather StatementMOBSanta Rosa47 min

Nearby

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