Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 29, NWS Tampa Bay, FL

June 25, 2000Pinellas County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 25, 2000, 5:25 PM EDT for Pinellas County, Florida. It was in force for 35 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, 2000, 5:25 PM EDT (21:25 UTC)
Expired
Jun 25, 2000, 6:00 PM EDT
In force
35 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Pinellas County, FL

What was reported inside it

TimeReportWhereRemark
Jun 25, 5:38 PM EDTHail 0.75St Petersburg, FLA Skywarn Spotter reported dime sized hail in St. Petersburg.

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, 9.4 hours before the alert went out and 40 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 12:00Z on 2000-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 205 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2000-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
205 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
1112 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
19 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.

000 
WUUS52 KTBW 252126
SVRTBW
FLC103-252200-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
525 PM EDT SUN JUN 25 2000

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PINELLAS COUNTY.

* UNTIL 600 PM EDT

* AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS 10 MILES EAST OF
  CLEARWATER...MOVING SOUTHWEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  SAFETY HARBOR.
  HIGHPOINT.
  CLEARWATER.
  BELLEAIR.

ANOTHER STRONG THUNDERSTORM WAS DEVELOPING OVER PINELLAS PARK. THIS 
STORM WAS DRIFTING NORTHWEST.

MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...LARGE HAIL...
TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

$$

LAT...LON 2792 8259 2808 8267 2798 8292 2779 8280

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 25, 1:00 PM EDT, 4 hours 25 minutes earlier.

Area forecast discussion, Jun 25, 1:00 PM EDT, 4 hours 25 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
100 PM EDT SUN JUN 25 2000

CURRENTLY: OFF TO A BIT SLOWER START WITH CONVECTION TODAY...AS ONE
WOULD EXPECT DURING THE TRANSITION TO DEEP SOUTHEASTERLY FLOW.
STILL SHOULD HAVE AN ACTIVE AFTERNOON IN THE AREA...JUST LATER THAN
THE LAST COUPLE OF DAYS.

FORECAST: MAIN FORECAST PROBLEM IS EXTENT OF DRY AIR THAT WILL MOVE
INTO THE AREA FROM THE EAST ON MONDAY AND MONDAY NIGHT. MODELS ARE
SHOWING THEIR USUAL BIASES WITH NGM PROBABLY TOO DRY AND AVN
PROBABLY TOO MOIST. INTERESTINGLY...POPS ON MACHINE GUIDANCE FOR
MON AT TAMPA WENT UP ABOUT 10 PERCENT ON BOTH FWC AND FAN. WILL PLAY
THE MIDDLE OF THE ROAD AND ESSENTIALLY GO CLIMO...ALTHOUGH THAT MAY
WIND UP BEING A BIT TOO HIGH IF DRY AIR WORKS IN MORE STRONGLY THAN
ANTICIPATED. WILL GO A BIT LOWER INLAND AND NORTH. TEMPS A TAD
WARMER THE NEXT TWO DAYS WITH SEABREEZE BEING HELD NEAR THE COAST
THROUGH A GOOD PART OF THE AFTERNOON.

EXTENDED: MRF SHOWS RIDGE BEING TEMPORARILY SUPPRESSED TO THE
SOUTHERN FA AGAIN BY LATE WEEK AS A SHORTWAVE DROPS INTO THE
SOUTHEAST. WILL WORD FOR MORE OF A CHANCE OF MORNING ACTIpVITY IN
THE NORTH BY FRIDAY.

PRELIM NUMBERS:
TPA 73/92/74/92 5555
FMY 72/92/73/92 4545

.TBW...NONE.

ALSHEIMER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 5:15 PM EDTSevere Thunderstorm WarningTBWHillsborough30 min
Jun 25, 5:38 PM EDTTornado WarningTBWHillsborough22 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000Every severe thunderstorm warning in 2000

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.