Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 41, NWS Tampa Bay, FL

June 5, 2001Pasco County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 5, 2001, 5:57 PM EDT for Pasco County, Florida. It was in force for 48 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 5, 2001, 5:57 PM EDT (21:57 UTC)
Expired: Jun 5, 2001, 6:45 PM EDT
In force: 48 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Pasco County, FL

What was reported inside it

Time	Report	Where	Remark
Jun 5, 6:15 PM EDT	Thunderstorm Wind	Dade City, FL	Pasco county emergency management reported that thunderstorm winds downed several large branches in Dade City in eastern Pasco county.

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, 10.0 hours before the alert went out and 67 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: 557 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1063 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -13 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.

955 
WUUS52 KTBW 052158
SVRTBW
FLC101-052245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
557 PM EDT TUE JUN 5 2001

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

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

* UNTIL 645 PM EDT.

* AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...7 MILES
  SOUTHWEST OF ZEPHYRHILLS...MOVING NORTHWEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  ZEPHYRHILLS.
  WESLEY CHAPEL.
  SAN ANTONIO.

SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND
HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY.

$$


13
NNNN

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 5, 2:30 PM EDT, 3 hours 27 minutes earlier.

Area forecast discussion, Jun 5, 2:30 PM EDT, 3 hours 27 minutes before

WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
230 PM EDT TUE JUN 5 2001

CONVECTION STARTED EARLY TODAY ON THE EAST COAST SEABREEZE...S FL
PENINSULA SE FLOW...WEST COAST SEABREEZE...AND IN SE GULF. WITH THE
COMBINATION OF MULTIPLE BOUNDARY CONVERGENCE AND THE CURRENT UNSTABLE
ENVIRONMENT BELIEVE LIKELY POPS WILL HAVE NO TROUBLE VERIFYING THIS
AFTERNOON AND EVENING OVER THE AREA.

MODELS IN GOOD AGREEMENT WITH CURRENT PATTERN OF UPPER RIDGE AXIS
OVER THE STATE INTO THE E GULF AND SFC RIDGE OVER N FL KEEPING THE
AREA IN DEEPENING UNSTABLE SE FLOW WITH AFTERNOON AND EVENING
CONVECTION AS BOUNDARIES AND SEABREEZES COLLIDE FOR LIKELY POPS
WED/WED EVE.
THU...MODELS DIFFER SLIGHTLY AND HAVE BACKED OFF ON THE PREVIOUS
SOLUTION. THE UPPER TROF DEEPENS AND MOVES OUT OF THE PLAINS AND TO
THE SE ATLC COAST BUT UPPER LOW OVER THE W GULF KEEPS ENERGY N AND W
OF AREA. THE ASSOCIATED SFC FRONT LAGS OVER THE DEEP SOUTH AS
TROPICAL FEATURE STAYS OVER S MS RV VALLEY. OVER FL...SFC RIDGE AXIS
TO SLOWLY SLIDE S OVER CENTRAL PENINSULA WITH WESTERLY FLOW OVER N
CWA...WHILE SOUTHERN ZONES REMAIN SE. WILL TRIM POPS ACCORDINGLY AS
GUIDANCE TEMPS LOOK GOOD WILL BLEND.

EXTENDED...UPPER TROF STAYS OVER EASTERN US AS SFC FRONT STALES N
OF THE AREA AND SFC RIDGE AXIS MOVES TO THE S FL PEN. WEAK VORT
MAXES ROTATE AROUND BASE OF TROF OVER THE AREA WITH SOUTHWESTERLY
FLOW IN PLACE ENOUGH TO PRODUCE SCT POPS INTO THE WEEKEND THEN
ISOLATED FOR THE START OF THE NEXT WEEK. LONG RANGE NUMBERS APPEAR IN
LINE.

MARINE...RIDGE AXIS N TO KEEP WEAK SE FLOW INTO WED PM. FLOW TO
SHIFT SW THEN W IN RESPONSE TO RIDGE SLIDING S INTO THE WEEKEND.
WINDS AND SEAS TO SLIGHTLY INCREASE AS GRADIENT TIGHTENS WITH TROF N
OF AREA. MAY NEED TO WATCH OFFSHORE BUOY REPORTS FOR ANY POSSIBLE
SWELL FROM ACTIVITY IN THE NW GULF IN 24-36 HOURS...BUT AT THIS POINT
DONT THINK IT WILL INFLUENCE LOCAL CONDITIONS.

PRELIMINARY NUMBERS:
TPA 074/091/074/090 5654
FMY 073/091/074/091 4645

.TBW...NONE.

RD

In the hours before

Local storm report, Jun 5, 5:26 PM EDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
526 PM EDT TUE JUN 05 2001

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

0230 PM    CAPE CORAL                FL   WIND DAMAGE
06/05/01   LEE                            LOCATED AT THE 500
                                          BLOCK OF SE 8TH ST.
                                          DAMAGE TO 3 DUPLEX
                                          STRUCTURES. PORTION OF
                                          A ROOF PEELED OFF. ALL
                                          DAMAGE ON SOUTH SIDE OF
                                          BUILDINGS. STRAIGHT
                                          LINE WINDS. DAMAGE
                                          ESTIMATED AT
                                          $20,000-$30,000. EVENT
                                          DURATION 15 MINUTES.
                                          REPORTED BY EMERGENCY
                                          MANAGEMENT.

0343 PM    PORT CHARLOTTE            FL   .75 INCH HAIL
06/05/01   CHARLOTTE                      LOCATED AT CONWAY BLVD
                                          AND OLEAN AVE. REPORTED
                                          BY STORM SPOTTER.

0345 PM    PORT CHARLOTTE            FL   .75 INCH HAIL
06/05/01   CHARLOTTE                      REPORTED BY STORM
                                          SPOTTER.

0348 PM    PORT CHARLOTTE            FL   .75 INCH HAIL
06/05/01   CHARLOTTE                      REPORTED BY STORM
                                          SPOTTER.

0355 PM    PORT CHARLOTTE            FL   .75 INCH HAIL
06/05/01   CHARLOTTE                      LOCATED AT MIDWAY AND
                                          STARLITE ST. REPORTED
                                          BY STORM SPOTTER.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 8:32 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough	43 min
Jun 4, 9:02 PM EDT	Severe Thunderstorm Warning	TBW	Pinellas	28 min
Jun 5, 2:34 PM EDT	Severe Thunderstorm Warning	TBW	Sarasota	41 min
Jun 5, 3:44 PM EDT	Severe Thunderstorm Warning	TBW	Charlotte, Sarasota	46 min
Jun 5, 6:42 PM EDT	Severe Thunderstorm Warning	TBW	Hernando	33 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001 Every severe thunderstorm warning in 2001

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.