Alert archive / Florida / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 23, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 20, 2000, 7:37 PM EDT for Polk County, Florida. It was in force for 23 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 20, 2000, 7:37 PM EDT (23:37 UTC)
- Expired
- Jun 20, 2000, 8:00 PM EDT
- In force
- 23 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Polk County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 20, 7:46 PM EDT | Thunderstorm Wind | Lakeland, FL | Thunderstorm winds downed several large tree branches on the south side of Lakeland in northwest Polk 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, 11.6 hours before the alert went out and 74 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
- 314 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
072 WUUS52 KTBW 202338 SVRTBW FLC105-210000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 737 PM EDT TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN POLK COUNTY. * UNTIL 800 PM EDT * AT 737 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL OVER NORTHWESTERN POLK COUNTY...NEAR KATHLEEN MOVING WEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... KATHLEEN. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. THUNDERSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE ADVANCE WARNING. $$ LAT...LON 2812 8198 2829 8203 2824 8206 2810 8205 15 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 20, 7:15 PM EDT, 22 minutes earlier.
Area forecast discussion, Jun 20, 7:15 PM EDT, 22 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 715 PM EDT TUE JUN 20 2000 THUNDERSTORMS ARE FIRING UP AGAIN ALONG THE SEABREEZE COLLISION AND IS NOW APPROACHING THE EASTERN FRINGES OF THE COASTAL COUNTIES. CONSIDERING THE NUMEROUS BOUNDARIES AND THE SLOW MOVEMENT OF THE STORMS WE COULD HAVE CONVECTION AROUND UNTIL LATE TONIGHT. I WILL WAIT UNTIL MUCH LATER BEFORE UPDATING THE ZONES. THE COASTAL FORECAST IS FINE AS IS. WINDS ON THE BUOYS ARE RUNNING FROM 2 TO 10 KNOTS...THE 10 KNOTS IS ON A BUOY CLOSE ENOUGH TO THE COAST TO HAVE A BIT OF A SEABREEZE. .TBW...NONE. SOBIEN
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 5:08 PM EDT | Severe Thunderstorm Warning | TBW | DeSoto, Manatee | 37 min |
| Jun 20, 5:14 PM EDT | Tornado Warning | TBW | Manatee | 31 min |
| Jun 20, 5:45 PM EDT | Tornado Warning | TBW | Manatee | 30 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.