Alert archive / Florida / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 33, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 7, 2000, 7:54 PM EDT for Levy County, Florida. It was in force for 51 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
- Jul 7, 2000, 7:54 PM EDT (23:54 UTC)
- Expired
- Jul 7, 2000, 8:45 PM EDT
- In force
- 51 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Levy County, FL
The radar
The Jacksonville radar (KJAX), 170 km from the middle of the area, began a volume at 23:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 7, 8:15 PM EDT | Thunderstorm Wind | Williston, FL | Law enforcement of Levy county reported that thunderstorm winds downed several trees and power lines along U.S. Highway 41 and County Road 121 near Williston. Also, thunderstorm winds downed trees and power lines at the intersection of County Road 339 and 320 |
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
Jacksonville, FL (KJAX), launched 12:00Z, 11.9 hours before the alert went out and 171 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
- 957 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1372 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 11 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 072357 SVRTBW FLC075-080045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 754 PM EDT FRI JUL 7 2000 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN LEVY COUNTY. * UNTIL 845 PM EDT. * AT 754 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...7 MILES NORTH OF BRONSON...MOVING SOUTHWEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... ZANNING SPRINGS. BRONSON. CHIEFLAND. MOVE INSIDE A STURDY BUILDING. DAMAGING WIND GUSTS OF 60 MPH OR HIGHER...LARGE HAIL...TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. MOVE TO A PLACE OF SAFETY...AN INTERIOR ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RUSKIN. $$ LAT...LON 2954 8256 2959 8289 2946 8297 2933 8261 25 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 Jul 7, 3:25 PM EDT, 4 hours 29 minutes earlier.
Area forecast discussion, Jul 7, 3:25 PM EDT, 4 hours 29 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 325 PM EDT FRI JUL 7 2000 CURRENTLY...A FEW STORMS TRYING TO DEVELOP AT THIS TIME...BUT ATMOSPHERE REMAINS SOMEWHAT CAPPED. GOES SATELLITE SOUNDING DATA INDICATING PLENTY OF INSTABILITY ACROSS REGION JUST WAITING FOR A TRIGGER. FORECAST...MODELS AGAIN IN GENERAL AGREEMENT FOR THE NEXT FEW DAYS. SURFACE TROUGH SHOULD CONTINUE TO MOVE SOUTH INTO NORTHERN ZONES LATER TONIGHT...INTO CENTRAL FLORIDA SATURDAY AFTERNOON AND INTO SOUTHERN ZONES SATURDAY NIGHT. OUT AHEAD OF THIS...PLENTY OF MOISTURE WILL BE IN PLACE AND EXPECT MORE ORGANIZED STORMS TO CONTINUE TO DEVELOP OVER NORTH FLORIDA AND MOVE SOUTH INTO NORTHERN ZONES LATE THIS AFTERNOON AND EVENING. WILL HAVE TO KEEP AN EYE ON THESE STORMS AS OUTFLOW COULD MOVE SOUTH INTO CENTRAL FLORIDA THIS EVENING CAUSING MORE THEN JUST A FEW SCATTERED THUNDERSTORMS. FOR NOW EXPECT SCATTERED SHOWERS AND THUNDERSTORMS TO CONTINUE POPPING UP THIS AFTERNOON AND EVENING THANKS TO DAYTIME HEATING ALONG WITH OUTFLOWS FROM THESE STORMS. ON SATURDAY...TROUGH WILL BE MOVING ACROSS CENTRAL FLORIDA WITH DEEPEST MOISTURE ALONG AND AHEAD OF IT AND THEREFORE ANTICIPATE NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOPING MAINLY DURING THE AFTERNOON HOURS ACROSS CENTRAL ZONES. BEHIND TROUGH EAST TO NORTHEAST FLOW WILL BRING IN DRIER AIR TO NORTHERN ZONES...BUT COULD STILL SEE A FEW STORMS. THE BIGGEST DIFFERENCE BETWEEN THE MODELS HAS TO DO WITH THE AMOUNT OF DRIER AIR MOVING INTO REGION SATURDAY INTO SUNDAY. ETA IS DRIEST...AVN WETTEST AND NGM IN BETWEEN. NOT CONVINCED AS MUCH DRY AIR WILL MOVE SOUTH AS INDICATED BY ETA...SO WILL LEAVE A CHANCE OF PRECIPITATION IN FOR SUNDAY AND WAIT FOR LATER MODEL RUNS. EARLY NEXT WEEK EAST TO SOUTHEAST FLOW WILL RETURN WITH MORE TYPICAL SCATTERED AFTERNOON AND EVENING THUNDERSTORMS. MARINE...WINDS WILL GRADUALLY SHIFT FROM WEST SOUTHWEST TO EAST NORTHEAST LATE TONIGHT THROUGH SATURDAY NIGHT FROM NORTH TO SOUTH ACROSS THE COASTAL WATERS AS TROUGH MOVES SOUTH. OTHERWISE NO HIGHLIGHTS AT THIS TIME. FIRE WEATHER...NO HIGHLIGHTS AS RELATIVE HUMIDITIES SH1OULD REMAIN ABOVE THRESHOLDS. PRELIMINARY NUMBERS: TPA TB 077/090 074/091 075 3633 FMY BB 075/091 074/091 075 3534 .TBW...NONE PRC
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; radar from the NEXRAD Level II archive.