Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Tampa Bay, FL

May 25, 2014Levy County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at May 25, 2014, 3:19 PM EDT for Levy 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
May 25, 2014, 3:19 PM EDT (19:19 UTC)
Expired
May 25, 2014, 4:00 PM EDT
In force
41 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

County Levy County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.3 hours before the alert went out and 171 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, Jacksonville, FL at 12:00Z on 2014-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1590 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, Jacksonville, FL at 12:00Z on 2014-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
1590 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
940 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

310 
WUUS52 KTBW 251919
SVRTBW
FLC075-252000-
/O.NEW.KTBW.SV.W.0021.140525T1919Z-140525T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
319 PM EDT SUN MAY 25 2014

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEVY COUNTY IN NORTHERN FLORIDA...

* UNTIL 400 PM EDT.

* AT 319 PM EDT...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 7 MILES
  WEST OF OTTER CREEK...OR 11 MILES SOUTH OF CHIEFLAND...AND MOVING
  NORTHEAST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 2944 8296 2944 8286 2938 8275 2932 8272
      2926 8279 2923 8289 2929 8298 2937 8305
TIME...MOT...LOC 1919Z 243DEG 4KT 2933 8288

$$
2 follow-up statements
396 
WWUS52 KTBW 251930
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
330 PM EDT SUN MAY 25 2014

FLC075-252000-
/O.CON.KTBW.SV.W.0021.000000T0000Z-140525T2000Z/
LEVY FL-
330 PM EDT SUN MAY 25 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR CENTRAL LEVY COUNTY...

AT 330 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 6 MILES WEST OF OTTER CREEK...OR 10 MILES SOUTH OF
CHIEFLAND...MOVING NORTHEAST AT 5 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 2944 8296 2944 8286 2938 8275 2932 8272
      2926 8279 2923 8289 2929 8298 2937 8305
TIME...MOT...LOC 1930Z 243DEG 4KT 2934 8287

$$
150 
WWUS52 KTBW 251948
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
348 PM EDT SUN MAY 25 2014

FLC075-251958-
/O.CAN.KTBW.SV.W.0021.000000T0000Z-140525T2000Z/
LEVY FL-
348 PM EDT SUN MAY 25 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LEVY COUNTY IS
CANCELLED...

ALTHOUGH THE STORM HAS WEAKENED BELOW SEVERE LIMITS IT WILL CONTINUE
TO PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...AND SMALL HAIL UNTIL IT
FULLY DISSIPATES.

LAT...LON 2944 8296 2944 8286 2938 8275 2932 8272
      2926 8279 2923 8289 2929 8298 2937 8305
TIME...MOT...LOC 1948Z 243DEG 4KT 2935 8285

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 1:22 PM EDTSpecial Weather StatementTBWPinellas38 min
May 25, 2:10 PM EDTSpecial Weather StatementTBWLevy35 min
May 25, 2:45 PM EDTSpecial Weather StatementTBWManatee45 min
May 25, 3:04 PM EDTSpecial Weather StatementTBWLevy41 min
May 25, 3:14 PM EDTSpecial Weather StatementTBWHillsborough31 min
May 25, 3:15 PM EDTSpecial Marine WarningTBW30 min
May 25, 3:17 PM EDTSpecial Weather StatementTBWCitrus28 min
May 25, 3:36 PM EDTSevere Thunderstorm WarningTBWCitrus, Hernando54 min
May 25, 4:13 PM EDTSpecial Weather StatementTBWSarasota47 min
May 25, 4:49 PM EDTSevere Thunderstorm WarningTBWHernando, Pasco56 min
May 25, 5:08 PM EDTSpecial Marine WarningTBW52 min
May 25, 5:51 PM EDTSevere Thunderstorm WarningTBWHillsborough, Pasco, Pinellas39 min
May 25, 5:57 PM EDTSpecial Marine WarningTBW63 min
May 25, 7:00 PM EDTSpecial Marine WarningTBW60 min
May 25, 7:56 PM EDTSpecial Weather StatementTBWManatee49 min

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.