Alert archive / Florida / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 331, NWS Tallahassee, FL

July 22, 2015Wakulla County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 22, 2015, 5:01 PM EDT for Wakulla County, Florida. It was in force for 44 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
Jul 22, 2015, 5:01 PM EDT (21:01 UTC)
Expired
Jul 22, 2015, 5:45 PM EDT
In force
44 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 26 km from the middle of the area, began a volume at 21:05 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
Jul 22, 5:30 PM EDTTSTM WND DMGShadeville, FLSEVERAL TREES DOWN NEAR WAKULLA GARDENS AND DAKOTA DRIVE.

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, 9.0 hours before the alert went out and 26 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 2015-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 827 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 2015-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -53 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
827 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
965 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-53 m²/s²
0-3 km storm-relative helicity
-30 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.

748 
WUUS52 KTAE 222101
SVRTAE
FLC129-222145-
/O.NEW.KTAE.SV.W.0331.150722T2101Z-150722T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
501 PM EDT WED JUL 22 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL WAKULLA COUNTY IN THE BIG BEND OF FLORIDA...

* UNTIL 545 PM EDT

* AT 501 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH. THIS STORM WAS LOCATED OVER CRAWFORDVILLE...AND MOVING NORTH
  AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CRAWFORDVILLE...SHADEVILLE...BETHEL...WAKULLA SPRINGS AND ARRAN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE IMMEDIATELY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS UNTIL
THIS STORM PASSES.

&&

LAT...LON 3011 8428 3011 8441 3026 8442 3025 8425
TIME...MOT...LOC 2101Z 185DEG 5KT 3017 8436 

$$

38-GODSEY

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 22, 3:15 AM EDTHeat AdvisoryTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more16 hr
Jul 22, 8:00 AM EDTSpecial Marine WarningTAE90 min
Jul 22, 5:11 PM EDTSevere Thunderstorm WarningTAEBay, Jackson, Washington32 min
Jul 22, 5:32 PM EDTSevere Thunderstorm WarningTAECalhoun, Liberty43 min
Jul 22, 5:46 PM EDTSpecial Weather StatementTAEWakulla44 min
Jul 22, 5:57 PM EDTSevere Thunderstorm WarningTAEJackson33 min
Jul 22, 6:16 PM EDTSevere Thunderstorm WarningTAEMadison44 min
Jul 22, 6:56 PM EDTSevere Thunderstorm WarningTAEGadsden64 min
Jul 22, 7:13 PM EDTSevere Thunderstorm WarningTAELeon62 min

Nearby

Severe Thunderstorm Warnings in Florida, 2015Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.