Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 91, NWS Mobile, AL

June 7, 2014Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2014, 4:30 PM CDT for Okaloosa County, Florida. It was in force for 30 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
Jun 7, 2014, 4:30 PM CDT (21:30 UTC)
Expired
Jun 7, 2014, 5:00 PM CDT
In force
30 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 59 km from the middle of the area, began a volume at 21:29 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

TimeReportWhereRemark
Jun 7, 4:45 PM CDTTSTM WND GST 54Crestview, FL54 MPH WIND GUST RECORDED AT CRESTVIEW AIRPORT AT 445 PM

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.5 hours before the alert went out and 215 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 2014-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 43 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 2014-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
43 J/kg
Mixed-layer CIN
-320 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
102 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.

773 
WUUS54 KMOB 072130
SVRMOB
FLC091-072200-
/O.NEW.KMOB.SV.W.0091.140607T2130Z-140607T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
430 PM CDT SAT JUN 7 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 500 PM CDT

* AT 427 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS OVER 60 MPH WAS LOCATED 4 MILES SOUTHEAST OF CRESTVIEW...OR
  11 MILES SOUTHEAST OF BAKER...AND MOVING SOUTH AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CRESTVIEW...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 50 AND 67.

LAT...LON 3070 8639 3069 8669 3088 8666 3079 8639
TIME...MOT...LOC 2131Z 009DEG 12KT 3071 8651

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 3:55 PM CDTSevere Thunderstorm WarningMOBOkaloosa35 min
Jun 7, 4:19 PM CDTSevere Thunderstorm WarningMOBOkaloosa26 min
Jun 7, 4:57 PM CDTFlash Flood WarningMOBOkaloosa2 hr
Jun 7, 5:02 PM CDTSevere Thunderstorm WarningMOBOkaloosa28 min
Jun 7, 5:22 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa23 min
Jun 7, 5:53 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa37 min
Jun 7, 6:23 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa37 min
Jun 7, 6:56 PM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa2 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.