Alert archive / Florida / Tornado Warnings in 2015

Tornado Warning 3, NWS Tampa Bay, FL

June 11, 2015Charlotte County, DeSoto County, Sarasota County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jun 11, 2015, 2:25 AM EDT for Charlotte County, DeSoto County, Sarasota County, Florida. It was in force for 35 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
Jun 11, 2015, 2:25 AM EDT (06:25 UTC)
Expired
Jun 11, 2015, 3:00 AM EDT
In force
35 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

Counties Charlotte County, FL, DeSoto County, FL, Sarasota County, FL

The radar

The Tampa radar (KTBW), 91 km from the middle of the area, began a volume at 06:24 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 00:00Z, 6.4 hours before the alert went out and 91 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 00:00Z on 2015-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 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 00:00Z on 2015-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
323 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
857 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

883 
WFUS52 KTBW 110625
TORTBW
FLC015-027-115-110700-
/O.NEW.KTBW.TO.W.0003.150611T0625Z-150611T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA / RUSKIN FL
225 AM EDT THU JUN 11 2015

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN DESOTO COUNTY IN SOUTH CENTRAL FLORIDA...
  WESTERN CHARLOTTE COUNTY IN SOUTHWESTERN FLORIDA...
  EAST CENTRAL SARASOTA COUNTY IN WEST CENTRAL FLORIDA...

* UNTIL 300 AM EDT
    
* AT 224 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS OVER 
  CHARLOTTE HARBOR...AND MOVING NORTH AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NORTH PORT...PUNTA GORDA...PORT CHARLOTTE...CHARLOTTE COUNTY
  AIRPORT...SOLANA...LAKE SUZY...CLEVELAND...NOCATEE...MURDOCK...FORT
  OGDEN...CHARLOTTE HARBOR...CHARLOTTE PARK AND HARBOUR HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 2682 8206 2687 8206 2691 8210 2693 8206
      2696 8207 2697 8210 2690 8219 2684 8216
      2685 8220 2693 8219 2693 8216 2694 8219
      2719 8214 2716 8189 2681 8201
TIME...MOT...LOC 0624Z 194DEG 29KT 2693 8208 

$$

EO
2 follow-up statements
642 
WWUS52 KTBW 110644
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA / RUSKIN FL
244 AM EDT THU JUN 11 2015

FLC015-027-115-110700-
/O.CON.KTBW.TO.W.0003.000000T0000Z-150611T0700Z/
DESOTO FL-CHARLOTTE FL-SARASOTA FL-
244 AM EDT THU JUN 11 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM EDT FOR
SOUTHWESTERN DESOTO...WESTERN CHARLOTTE AND EAST CENTRAL SARASOTA
COUNTIES...
    
AT 243 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR PORT
CHARLOTTE...MOVING NORTH AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
NORTH PORT...PUNTA GORDA...PORT CHARLOTTE...CHARLOTTE COUNTY
AIRPORT...SOLANA...LAKE SUZY...CLEVELAND...NOCATEE...MURDOCK...FORT
OGDEN...CHARLOTTE HARBOR...CHARLOTTE PARK AND HARBOUR HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 2682 8206 2687 8206 2691 8210 2693 8206
      2696 8207 2697 8210 2690 8219 2684 8216
      2685 8220 2693 8219 2693 8216 2694 8219
      2719 8214 2716 8189 2681 8201
TIME...MOT...LOC 0643Z 197DEG 24KT 2699 8203 

$$

EO
098 
WWUS52 KTBW 110703
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA / RUSKIN FL
303 AM EDT THU JUN 11 2015

FLC015-027-115-110712-
/O.EXP.KTBW.TO.W.0003.000000T0000Z-150611T0700Z/
DESOTO FL-CHARLOTTE FL-SARASOTA FL-
303 AM EDT THU JUN 11 2015

...THE TORNADO WARNING FOR SOUTHWESTERN DESOTO...WESTERN CHARLOTTE
AND EAST CENTRAL SARASOTA COUNTIES HAS EXPIRED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED. 
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  GUSTY WINDS OF UP 
TO 40 MPH ARE STILL POSSIBLE WITH THE STORM.

LAT...LON 2682 8206 2687 8206 2691 8210 2693 8206
      2696 8207 2697 8210 2690 8219 2684 8216
      2685 8220 2693 8219 2693 8216 2694 8219
      2719 8214 2716 8189 2681 8201
TIME...MOT...LOC 0652Z 194DEG 29KT 2699 8203 

$$

EO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 8:37 PM EDTSpecial Weather StatementTBWLee23 min
Jun 10, 9:57 PM EDTSpecial Marine WarningTBW63 min
Jun 11, 1:08 AM EDTSpecial Marine WarningTBW52 min
Jun 11, 1:27 AM EDTSpecial Weather StatementTBWLee63 min
Jun 11, 2:18 AM EDTSpecial Marine WarningTBW27 min
Jun 11, 4:32 PM EDTSpecial Marine WarningTBW58 min
Jun 11, 4:47 PM EDTSpecial Weather StatementTBWHillsborough28 min
Jun 11, 5:49 PM EDTSpecial Weather StatementTBWLee56 min

Nearby

Tornado Warnings in Florida, 2015Every tornado warning in 2015Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.