Severe Thunderstorm Warning 71, NWS Tampa Bay, FL

Issued

Jun 21, 1997, 7:00 PM EDT (23:00 UTC)

Expired

Jun 21, 1997, 7:45 PM EDT

In force

45 min

Issued by

NWS Tampa Bay, FL

Area

Whole counties

County Hillsborough County, FL

150 
WUUS1 KTBW 212304 RRA
SVRTBW
FLC057-212345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
700 PM EDT SAT JUN 21 1997
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL FLORIDA
 
   ...HILLSBOROUGH COUNTY
 
AND THE ADJACENT COASTAL WATERS ALONG THE FLORIDA WEST COAST
 
AT 700 PM EDT...DOPPLER RADAR CONTINUES TO INDICATE SEVERE
THUNDERSTORMS NEAR RIVERVIEW AND NEAR RUSKIN. LITTLE MOVEMENT
WAS NOTED.
 
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.
 
THE NATIONAL WEATHER SERVICE IN RUSKIN REQUESTS THAT SKYWARN UNITS IN
THE COUNTY BE ACTIVATED AND FORWARD ALL SIGNIFICANT WEATHER REPORTS
TO OUR OFFICE.

NWS Tampa Bay, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 3:06 PM EDT, 3 hours 54 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
300 PM EDT SAT JUN 21 1997

DEWPOINTS STILL HAVE NOT RECOVERED...THEREFORE RAINFALL COVERAGE MAY
BE A LITTLE LESS THAN FIRST EXPECTED.  IN FACT THE 2PM DEWPOINT AT TAMPA
WAS 64 DEGREES.  THE EAST COAST SEABREEZE IS PUSHING IN ALONG THE
SOUTHEAST COAST.  LDS IS SHOWING A FEW LIGHTNING STRIKES ALREADY...I
WOULD EXPECT THIS TO CONTINUE TO MOVE WESTWARD...SO I AM STILL
EXPECTING LATE EVENING THUNDERSTORMS.

ALL OF THIS MAY BE ABOUT TO CHANGE THE MODELS...ALL OF THEM...ARE
SPINNING UP AN UPPER LOW IN THE EASTERN GULF IN ADDITION THE SURFACE
WAVE IN THE BAHAMAS LOOKS LIKE IT WILL MOVE ACROSS THE STRAITS AND INTO
THE SOUTHEAST GULF.  THE RIDGE AXIS MOVES SLOWLY NORTH...BRINGING
EASTERLY FLOW TO MOST OF THE AREA...THEREFORE RAINFALL CHANCES WILL BE
ON THE RISE.

WATER VAPOR PIX AGAIN MAKE ME WANT TO LEAN TOWARD THE ETA SOLUTION
WHICH CUTS OFF THE LOW FROM A SHARP TROUGH IN THE GULF.  THE NGM AND
AVN JUST DEVELOP A LOW OVER CUBA/SOUTHEAST GULF FROM NOTHING.

THE FAN NUMBERS LOOK PRETTY GOOD...THE FWC IS TOO DRY...SO THAT IS THE
WAY I AM LEANING.

BKV 71/93 71/91 1213         TPA 73/94 75/91 1324        FMY 74/94 7b6/92 3435

SOBIEN

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

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.