Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 87, NWS Tampa Bay, FL

June 25, 1997Hardee County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 25, 1997, 5:28 PM EDT for Hardee County, Florida. It was in force for 32 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 25, 1997, 5:28 PM EDT (21:28 UTC)
Expired: Jun 25, 1997, 6:00 PM EDT
In force: 32 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Hardee County, FL

What was reported inside it

Time	Report	Where	Remark
Jun 25, 5:37 PM EDT	Hail 0.75	Wauchula, FL	Dime sized hail was reported along U.S. Highway 17 between Bowling Green and Wauchula.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 9.5 hours before the alert went out and 63 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: 1011 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 915 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 37 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.

660 
WUUS1 KTBW 252129 RRA
SVRTBW
FLC049-252200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
528 PM EDT WED JUN 25 1997
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL FLORIDA
 
   ...HARDEE COUNTY
 
AT 525 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM NEAR WAUCHULA...JUST NORTH OF HWY 64. THIS THUNDERSTORM WAS
MOVING TO THE WEST AT 10 MPH.
 
THIS THUNDERSTORM HAS THE POTENTIAL TO PRODUCE LARGE HAIL AND STRONG
WINDS.
 
BY DEFINITION...SEVERE THUNDERSTORMS HAVE WINDS OF 58 MPH OR GREATER
AND/OR DIME SIZE HAIL OR LARGER. MOBILE HOMES ARE NOT SAFE IF THIS
STORM APPROACHES YOUR AREA...GO TO A REINFORCED BUILDING AND STAY
THERE UNTIL THE STORM PASSES.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tampa Bay, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 2:45 PM EDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jun 25, 2:45 PM EDT, 2 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
245 PM EDT WED JUN 25 1997

CONVECTION ALREADY DVLPG OVR PENINSULA. EXPECT CONDITIONS SIMILAR TO
YDA WITH STG STORMS...WITH GUSTY WINDS AND HEAVIER RAIN...OVR SOME
LOCATIONS...AND EVENT ENDING BY 0Z. SOME FOG PSBL OVERNIGHT DUE TO
LIGHTER WINDS AND LOW LVL MSTR...HWR FOG TYPICALLY NOT AS PREVALENT
DRG SUMMER MORNINGS.

WATER VAPOR/MODEL INITIALIZATIONS REVEAL PROGRESSIVE PATTERN OVR NRN
U.S. WITH UPR RDG OVR SERN U.S.  THE DISTURBANCE NEAR THE GREAT LAKES
IS PROGD TO MOV ESE ACRS THE ERN U.S. AND AN ASSOCIATED SFC TROF WL
MOV ACRS THE ERN/SERN U.S. AND FORCE THE SFC RDG AXIS SWD INTO CNTRL
FL LATER IN THE PD...WHICH MAY MINIMIZE AFTN CONVECTION OVR THE EXTREME
NRN FA. FWC POPS ARE TOO LOW. 50% FOR THUR OVER THE FA IS APPROPRIATE.

11

In the hours before

Local storm report, Jun 25, 1:30 PM EDT, 3 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
130 PM EDT WED JUN 25 1997

...ALL TIMES IN EST...

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

345 PM EST RUSKIN                    FL   WIND DAMAGE
06/24/97   HILLSBOROUGH                   TREE DOWN 21TH ST AND
                                          14 AV. PALM TREE THROUGH
                                          ROOF AT 2121 18TH ST.
                                          FROM HILLSBOROUGH COUNTY SO.

RKR

Local storm report, Jun 25, 1:46 PM EDT, 3 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
130 PM EDT WED JUN 25 1997

...ALL TIMES IN EST...

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

345 PM EST RUSKIN                    FL   WIND DAMAGE
06/24/97   HILLSBOROUGH                   TREE DOWN 21TH ST AND
                                          14 AV. PALM TREE THROUGH
                                          ROOF AT 2121 18TH ST.
                                          FROM HILLSBOROUGH COUNTY SO.

RKR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 3:31 PM EDT	Severe Thunderstorm Warning	TBW	Sarasota	44 min
Jun 25, 5:22 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough, Pinellas	53 min
Jun 25, 5:58 PM EDT	Severe Thunderstorm Warning	TBW	Pasco	47 min

Nearby

Severe Thunderstorm Warnings in Florida, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.