Alert archive / Florida / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 3, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at May 9, 2000, 4:21 PM EDT for Pasco County, Sumter County, Florida. It was in force for 54 min. 2 reports 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
- May 9, 2000, 4:21 PM EDT (20:21 UTC)
- Expired
- May 9, 2000, 5:15 PM EDT
- In force
- 54 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
Counties Pasco County, FL, Sumter County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 9, 5:05 PM EDT | Thunderstorm Wind | Tarrytown, FL | Thunderstorm downburst winds downed numerous large branches and power lines along County Road 471 and the Green Swamp. |
| May 9, 5:11 PM EDT | Hail 1 | Dade City, FL | Quarter sized hail was reported by the Pasco County Fire and Rescue department near the intersection of Lacoochee Clay Sink Road and County Road 471 over rural extreme northeast 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, 8.4 hours before the alert went out and 90 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.
- Mixed-layer CAPE
- 412 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 860 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KTBW 092022 SVRTBW FLC101-119-092115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL ISSUED BY MELBOURNE FL 421 PM EDT TUE MAY 9 2000 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PASCO COUNTY SOUTHERN SUMTER COUNTY ...IN EAST CENTRAL FLORIDA * UNTIL 515 PM EDT. * AT 417 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES EAST OF DADE CITY...REDEVELOPING TOWARD DADE CITY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. IF THE STORM APPROACHES YOU...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE STORM. IF YOU ARE IN ITS PATH...PUT YOUR CAR IN A GARAGE AND MOVE TO A STURDY BUILDING AWAY FROM WINDOWS. $$ LAT...LON 2848 8213 2835 8221 2832 8207 2846 8196
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 May 9, 3:50 PM EDT, 31 minutes earlier.
Area forecast discussion, May 9, 3:50 PM EDT, 31 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 350 PM EDT TUE MAY 9 2000 THE AVIATION MODEL CONTINUED TO BE SUPERIOR IN HANDLING THE SLOWLY EVOLVING SUB-SYNOPTIC FEATURE CHANGES OVER FLORIDA AND SURROUNDING WATERS OVER THE PAST 24 HOURS. AVN CONTINUED TO FORECAST THE EAST TO WEST RIDGE AXIS OVER NORTH FLORIDA TO PUSH SOUTH INTO CENTRAL FLORIDA AS A COLD FRONT MOVES SOUTHEAST ACROSS GEORGIA AND ALABAMA. WEAK 500 MB TROUGH OVER THE CENTRAL GULF OF MEXICO WILL MOVE EAST OF FLORIDA BY LATE WEDNESDAY AND MINIMIZE THUNDERSTORM THREAT. THUS SOUTHWEST SURFACE FLOW OCCUR OVER MOST OF WEST CENTRAL FLORIDA ON WEDNESDAY AND THURSDAY CURRENTLY...WIDELY SCATTERED THUNDERSTORMS EAST OF INTERSTATE 75 CORRIDOR EXTENDING INTO CENTRAL FLORIDA WILL CONTINUE THROUGH EARLY EVENING. DUE TO DRY AIR ALOFT AND WEAK PVA AHEAD OF THE ADVANCING 500 MB TROUGH...A FEW OF THESE STORMS WILL HAVE THE POTENTIAL TO PRODUCE LIMITED HAIL...BRIEF HEAVY RAIN AND GUSTS UP TO 40 MPH. TPA 68/86/69/90 -1-- FMY 70/88/71/92 -3-2 .TBW...NONE. ZALESKI
In the hours before
Special weather statement, May 9, 12:40 PM EDT, 3 hours 41 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-DDHHMM- WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1240 PM EDT TUE MAY 9 2000 ...A FEW THUNDERSTORMS POSSIBLE ACROSS WEST CENTRAL AND SOUTHWEST FLORIDA TODAY... INCREASING LOW LEVEL ATMOSPHERIC MOISTURE COUPLED WITH AFTERNOON SUNSHINE AND COASTAL SEA BREEZES...WILL BRING A THREAT OF WIDELY SCATTERED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF WEST CENTRAL AND SOUTHWEST FLORIDA. MOST OF THE WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL OCCUR MAINLY EAST OF THE INTERSTATE 75 CORRIDOR OVER WEST CENTRAL AND SOUTHWEST FLORIDA THIS AFTERNOON. THE PRIMARY THREAT FROM THESE STORMS WILL BE BRIEF HEAVY RAIN... FREQUENT LIGHTNING...AND GUSTY WINDS OF UP TO 40 MPH. EMERGENCY MANAGEMENT OFFICIALS...STORM SPOTTERS AND RESIDENTS SHOULD MONITOR THE WEATHER TODAY AND BE ALERT FOR FUTURE STATEMENTS FROM THE NATIONAL WEATHER SERVICE. ZALESKI
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 4:32 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 58 min |
| May 9, 5:05 PM EDT | Severe Thunderstorm Warning | TBW | Highlands | 55 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.