Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 184, NWS Mobile, AL

August 16, 2012Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Aug 16, 2012, 3:18 PM CDT for Santa Rosa County, Florida. It was in force for 27 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
Aug 16, 2012, 3:18 PM CDT (20:18 UTC)
Expired
Aug 16, 2012, 3:45 PM CDT
In force
27 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Santa Rosa County, FL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.3 hours before the alert went out and 248 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 12:00Z on 2012-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4098 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 12:00Z on 2012-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 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
4098 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
19 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.

091 
WUUS54 KMOB 162018
SVRMOB
FLC113-162045-
/O.NEW.KMOB.SV.W.0184.120816T2018Z-120816T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
318 PM CDT THU AUG 16 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 345 PM CDT

* AT 315 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS OVER 60 MPH WAS LOCATED 8 MILES SOUTH OF CENTURY...OR 5 MILES
  SOUTHWEST OF PINE LEVEL...AND MOVING NORTHEAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          PINE LEVEL...         JAY...

LAT...LON 3081 8730 3086 8731 3089 8728 3092 8728
      3093 8727 3093 8725 3096 8724 3096 8722
      3100 8716 3100 8706 3093 8697 3074 8721
TIME...MOT...LOC 2018Z 223DEG 8KT 3087 8721

$$
1 follow-up statement
724 
WWUS54 KMOB 162038
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
338 PM CDT THU AUG 16 2012

FLC113-162049-
/O.EXP.KMOB.SV.W.0184.000000T0000Z-120816T2045Z/
SANTA ROSA FL-
338 PM CDT THU AUG 16 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
NORTHWESTERN SANTA ROSA COUNTY...

AT 337 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN
SANTA ROSA COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 345 PM CDT.

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

LAT...LON 3081 8730 3086 8731 3089 8728 3092 8728
      3093 8727 3093 8725 3096 8724 3096 8722
      3100 8716 3100 8706 3093 8697 3074 8721
TIME...MOT...LOC 2039Z 223DEG 8KT 3090 8717

$$

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012

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.