Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 72, NWS Mobile, AL

April 29, 2014Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Apr 29, 2014, 8:15 PM CDT for Escambia County, Santa Rosa County, Florida. It was in force for 45 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 29, 2014, 8:15 PM CDT (01:15 UTC)
Expired
Apr 29, 2014, 9:00 PM CDT
In force
45 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Escambia County, FL, Santa Rosa County, FL

What was reported inside it

TimeReportWhereRemark
Apr 29, 8:45 PM CDTHAIL 0.75Pensacola, FL

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.

IssuedProductOfficeLasted
Apr 29, 12:46 PM CDTTornado WatchSPC10 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.3 hours before the alert went out and 243 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, Slidell Radar S, LA at 00:00Z on 2014-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3284 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 2014-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.19395878Sfc1 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
3284 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
577 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
3.5
Supercell composite
13.5

Open this sounding in Storm Lab

The text

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

289 
WUUS54 KMOB 300115
SVRMOB
FLC033-113-300200-
/O.NEW.KMOB.SV.W.0072.140430T0115Z-140430T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
ISSUED BY NATIONAL WEATHER SERVICE NEW ORLEANS LA
815 PM CDT TUE APR 29 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF PENSACOLA...
  SOUTHERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 900 PM CDT

* AT 811 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BELLVIEW...OR 10 MILES WEST OF PENSACOLA...AND MOVING EAST AT 15
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  GONZALEZ...MYRTLE GROVE...ENSLEY...WEST PENSACOLA...WARRINGTON...
  BROWNSVILLE...BRENT...GOULDING...FERRY PASS...PENSACOLA REGIONAL
  A/P...EAST PENSACOLA HEIGHTS...PACE...MILTON AND BAGDAD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE
INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND
PHOTOS.

&&

LAT...LON 3039 8743 3043 8735 3045 8741 3051 8745
      3061 8740 3066 8728 3066 8689 3040 8688
      3038 8713 3038 8714 3046 8695 3050 8703
      3054 8701 3045 8706 3044 8710 3051 8711
      3057 8717 3053 8718 3049 8715 3039 8721
TIME...MOT...LOC 0115Z 275DEG 12KT 3047 8733

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 8:07 PM CDTFlash Flood Warning EmergencyMOBEscambia, Okaloosa, Santa Rosa18 hr
Apr 29, 8:26 PM CDTTornado WarningMOBEscambia, Santa Rosa34 min
Apr 29, 8:34 PM CDTTornado WarningMOBOkaloosa26 min
Apr 29, 8:53 PM CDTRiver Flood WarningMOBEscambia, Okaloosa, Santa Rosa57 hr
Apr 29, 8:59 PM CDTTornado WarningMOBOkaloosa, Santa Rosa31 min
Apr 29, 9:24 PM CDTTornado WarningMOBOkaloosa, Santa Rosa36 min
Apr 29, 9:49 PM CDTTornado WarningMOBOkaloosa26 min
Apr 29, 9:59 PM CDTTornado WarningMOBOkaloosa61 min
Apr 29, 10:23 PM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa40 hr
Apr 29, 10:28 PM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa6 hr
Apr 29, 11:23 PM CDTRiver Flood WarningMOBEscambia, Okaloosa, Santa Rosa49 hr
Apr 29, 11:34 PM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa69 hr
Apr 29, 11:39 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa66 min
Apr 30, 1:43 AM CDTRiver Flood WarningMOBEscambia50 hr
Apr 30, 7:06 AM CDTCoastal Flood StatementMOB8 hr
Apr 30, 10:35 AM CDTRiver Flood WarningMOBEscambia71 hr
Apr 30, 2:06 PM CDTAreal Flood WarningMOBEscambia, Okaloosa, Santa Rosa24 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.