Alert archive / Florida / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 21, NWS Tampa Bay, FL

May 5, 2007Charlotte County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at May 5, 2007, 2:38 PM EDT for Charlotte County, Florida. It was in force for 37 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 5, 2007, 2:38 PM EDT (18:38 UTC)
Expired
May 5, 2007, 3:15 PM EDT
In force
37 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Charlotte County, FL

The radar

The Tampa radar (KTBW), 106 km from the middle of the area, began a volume at 18:39 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.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 6.6 hours before the alert went out and 106 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, Tampa Bay, FL at 12:00Z on 2007-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1360 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, Tampa Bay, FL at 12:00Z on 2007-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
1360 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
74 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.

000 
WUUS52 KTBW 051838
SVRTBW
FLC015-051915-
/O.NEW.KTBW.SV.W.0021.070505T1838Z-070505T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
238 PM EDT SAT MAY 5 2007

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CHARLOTTE COUNTY IN FLORIDA.

* UNTIL 315 PM EDT

* AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL...OVER
  CENTRAL CHARLOTTE COUNTY...MOVING SOUTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BABCOCK RANCH BY 240 PM EDT.
  TUCKERS CORNER BY 315 PM EDT.

MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...LARGE HAIL...
TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OF LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN RUSKIN BY CALLING 813-645-2323.

&&

LAT...LON 2701 8175 2699 8194 2678 8193 2678 8165

$$

57
1 follow-up statement
000 
WWUS52 KTBW 051915
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
315 PM EDT SAT MAY 5 2007

FLC015-051922-
/O.EXP.KTBW.SV.W.0021.000000T0000Z-070505T1915Z/
CHARLOTTE-
315 PM EDT SAT MAY 5 2007

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHARLOTTE COUNTY HAS
EXPIRED...

AT 315 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THE 
THUNDERSTORM HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING
HAS BEEN ALLOWED TO EXPIRE.

DOPPLER RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY 
WINDS WERE STILL POSSIBLE FROM THIS THUNDERSTORM. IF THIS STORM
RESTRENGTHENS THEN ANOTHER WARNING WILL BE ISSUED.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER
INFORMATION.

&&

LAT...LON 2701 8175 2699 8194 2678 8193 2678 8165

$$

57

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 2:04 PM EDTSevere Thunderstorm WarningTBWCharlotte26 min
May 5, 2:25 PM EDTSevere Thunderstorm WarningTBWHillsborough35 min
May 5, 2:40 PM EDTSevere Thunderstorm WarningTBWHernando35 min
May 5, 3:29 PM EDTSevere Thunderstorm WarningTBWCharlotte, DeSoto31 min
May 5, 3:32 PM EDTSevere Thunderstorm WarningTBWPasco43 min
May 5, 3:42 PM EDTSevere Thunderstorm WarningTBWLee33 min
May 5, 4:24 PM EDTSevere Thunderstorm WarningTBWDeSoto36 min
May 5, 6:01 PM EDTSevere Thunderstorm WarningTBWLevy29 min

Nearby

Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm warning in 2007

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; radar from the NEXRAD Level II archive.