Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 142, NWS Mobile, AL

October 3, 2014Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Oct 3, 2014, 9:19 AM CDT for Okaloosa County, Florida. It was in force for 41 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
Oct 3, 2014, 9:19 AM CDT (14:19 UTC)
Expired
Oct 3, 2014, 10:00 AM CDT
In force
41 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 14:22 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 12:00Z, 2.3 hours before the alert went out and 212 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 12:00Z on 2014-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 614 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2014-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
614 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

442 
WUUS54 KMOB 031419
SVRMOB
FLC091-031500-
/O.NEW.KMOB.SV.W.0142.141003T1419Z-141003T1500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
919 AM CDT FRI OCT 3 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 1000 AM CDT

* AT 918 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
  6 MILES SOUTHWEST OF CRESTVIEW TO 5 MILES SOUTHWEST OF MARY
  ESTHER...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OCEAN CITY...         FORT WALTON BEACH...  SHALIMAR...
  LAKE LORRAINE...      CINCO BAYOU...        WRIGHT...
  VALPARAISO...         NICEVILLE...          MARY ESTHER...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 46 AND 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS OFTEN PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING. PLEASE TAKE COVER UNTIL THE STORM PASSES.

&&

LAT...LON 3039 8659 3038 8680 3079 8672 3078 8638
      3045 8639 3044 8642 3048 8646 3045 8649
      3042 8659 3040 8658 3040 8653 3042 8649
      3042 8644 3041 8640 3038 8639 3037 8640
TIME...MOT...LOC 1419Z 270DEG 27KT 3070 8664 3035 8671

$$
1 follow-up statement
727 
WWUS54 KMOB 031454
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
954 AM CDT FRI OCT 3 2014

FLC091-031503-
/O.EXP.KMOB.SV.W.0142.000000T0000Z-141003T1500Z/
OKALOOSA FL-
954 AM CDT FRI OCT 3 2014

...THE SEVERE THUNDERSTORM WARNING IS BEING ALLOWED TO EXPIRE FOR
SOUTHERN OKALOOSA COUNTY...

AT 948 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHERN 
OKALOOSA COUNTY HAS NEARLY MOVED OUT OF THE COUNTY...THUS THE SEVERE 
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 1000 AM CDT.

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

LAT...LON 3039 8659 3038 8680 3079 8672 3078 8638
      3045 8639 3044 8642 3048 8646 3045 8649
      3042 8659 3040 8658 3040 8653 3042 8649
      3042 8644 3041 8640 3038 8639 3037 8640
TIME...MOT...LOC 1453Z 270DEG 27KT 3070 8634 3035 8641

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 3, 2:55 PM CDTRed Flag WarningMOB27 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2014Every severe thunderstorm warning in 2014

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.