Alert archive / Florida / Tornado Warnings in 2016

Tornado Warning 23, NWS Tampa Bay, FL

April 7, 2016Pinellas County, Florida

NWS Tampa Bay, FL issued this tornado warning at Apr 7, 2016, 6:41 AM EDT for Pinellas County, Florida. It was in force for 19 min. 2 reports 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: Apr 7, 2016, 6:41 AM EDT (10:41 UTC)
Expired: Apr 7, 2016, 7:00 AM EDT
In force: 19 min
Issued by: NWS Tampa Bay, FL
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County Pinellas County, FL

The radar

The Tampa radar (KTBW), 48 km from the middle of the area, began a volume at 10:41 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

Time	Report	Where	Remark
Apr 7, 6:55 AM EDT	TORNADO	3 Ene Clearwater, FL	CLEARWATER PUBLIC SAFETY REPORT OF LARGE TREE UPROOTED IN CLEARWATER.
Apr 7, 6:55 AM EDT	TORNADO	3 Ene Clearwater, FL	TRAINED SPOTTER REPORT OF TORNADO OVER BAYSIDE BRIDGE. REPORTS OF SIGNS BENT OVER AND FENCE TORE DOWN AT BALLFIELD ON NORTH END OF BRIDGE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 10.7 hours before the alert went out and 48 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 100 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1628 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

235 
WFUS52 KTBW 071041
TORTBW
FLC103-071100-
/O.NEW.KTBW.TO.W.0023.160407T1041Z-160407T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA / RUSKIN FL
641 AM EDT THU APR 7 2016

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN PINELLAS COUNTY IN WEST CENTRAL FLORIDA...

* UNTIL 700 AM EDT

* AT 640 AM EDT...A LIKELY WATERSPOUT WAS LOCATED JUST OFFSHORE
  NEAR CLEARWATER...MOVING EAST AT 30 MPH.

  HAZARD...TORNADO. 

  SOURCE...WEATHER SPOTTERS CONFIRMED WATERSPOUT MOVING ONSHORE. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS TORNADO WILL BE NEAR...
  CLEARWATER AROUND 645 AM EDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADO INCLUDE SAFETY HARBOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW!

&&

LAT...LON 2803 8279 2804 8270 2796 8270 2796 8272
      2795 8273 2798 8283 2801 8282 2799 8282
      2799 8279
TIME...MOT...LOC 1040Z 273DEG 25KT 2800 8280 

TORNADO...OBSERVED
HAIL...<.75IN

$$

AUSTIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 4:13 AM EDT	Special Marine Warning	TBW		47 min
Apr 7, 4:51 AM EDT	Special Weather Statement	TBW	Citrus	39 min
Apr 7, 5:12 AM EDT	Special Marine Warning	TBW		63 min
Apr 7, 5:23 AM EDT	Special Weather Statement	TBW	Hernando	52 min
Apr 7, 5:47 AM EDT	Tornado Warning	TBW	Pasco	28 min
Apr 7, 5:57 AM EDT	Special Marine Warning	TBW		63 min
Apr 7, 6:14 AM EDT	Special Weather Statement	TBW	Pasco	46 min
Apr 7, 6:56 AM EDT	Special Marine Warning	TBW		64 min
Apr 7, 7:00 AM EDT	Special Weather Statement	TBW	Hillsborough	45 min
Apr 7, 7:25 AM EDT	Tornado Warning	TBW	Hillsborough, Pinellas	19 min
Apr 7, 10:23 AM EDT	Special Marine Warning	TBW		37 min
Apr 7, 10:33 AM EDT	Special Weather Statement	TBW	Sarasota	27 min
Apr 7, 10:49 AM EDT	Special Marine Warning	TBW		26 min

Nearby

Tornado Warnings in Florida, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.