Alert archive / Florida / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 69, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 12, 2000, 2:38 PM EDT for Hillsborough County, Florida. It was in force for 37 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
- Aug 12, 2000, 2:38 PM EDT (18:38 UTC)
- Expired
- Aug 12, 2000, 3:15 PM EDT
- In force
- 37 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hillsborough County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 2:45 PM EDT | Thunderstorm Wind | Tampa, FL | The Tampa Police Department reported that thunderstorm winds downed a few large trees and power lines along Armenia Avenue and Broad Street in Tampa. |
| Aug 12, 2:46 PM EDT | Thunderstorm Wind | Tampa, FL | The public reported that thunderstorm winds snapped several three to five inch tree branches in the Town N' Country area of northwest Hillsborough 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, 6.6 hours before the alert went out and 23 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
- 1157 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KTBW 121839 SVRTBW FLC057-121915- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 238 PM EDT SAT AUG 12 2000 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HILLSBOROUGH COUNTY. * UNTIL 315 PM EDT. * AT 237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS...FROM LUTZ SOUTH ACROSS CARROLLWOOD AND SOUTH TAMPA TO NEAR RUSKIN. MOVEMENT WAS EAST AT 30 MPH. * SEVERE THUNDERSTORMS WILL AFFECT... TAMPA AND TEMPLE TERRACE BY 245 PM EDT. BRANDON BY 300 PM EDT. PLANT CITY BY 310 PM EDT. 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 2817 8264 2765 8256 2766 8207 2817 8207 ZALESKI 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 Aug 12, 2:38 PM EDT, 0 minutes earlier.
Area forecast discussion, Aug 12, 2:38 PM EDT, 0 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
238 PM EDT SAT AUG 12 2000
CURRENTLY: AS STATED EARLIER...SHOWERS/TSTMS HAVE DECREASED IN
INTENSITY AND COVERAGE WELL NORTH OF TPA...BUT CONTINUE TO BE
RELATIVELY WIDESPREAD ACROSS THE S 1/2 OF THE FA. IN FACT...AN NEW
AREA OF STRONG STORMS HAS DEVELOPED OVER THE E GULF...WEST OF THE
TPA BAY AREA. HEAVY RAINFALL HAS REMAINED BIGGEST PROB TODAY...WITH
SOME COASTAL AREAS REACHING AMTS OF 4 TO 5 INCHES IN PAST 12 HOURS.
DISC: SLOW MOVING CLOSED UPPER LOW OVER THE MID ATLC...IS PROGD BY
MODELS TO LIFT NE BY MON. UPPER RIDGE WILL BEGIN BUILDING FROM THE
NW LATER MON AND TUE. FCST PROB REMAINS POTENTIAL FOR HEAVY RAINFALL.
AS UPPER TROF SINKS INTO FA BY SUN...UPPER LEVEL DIFFLUENCE SHIFT
SE...OUT OF AREA. THIS SHOULD HELP TO REDUCE CHCS FOR WIDESPREAD...
HEAVY RAINFALL. ALL MODELS ALSO INDICATE THAT DRIER AIR WILL MOVE
INTO THE N FA MON AND TUE...WHICH MATCHES LATEST VAPOR TREND. THUS
EXPECT LOWEST POPS IN THIS AREA LATER TONIGHT THROUGH MON. WILL KEEP
LIKELY/CAT POPS CENT AND S FA SUN...DOWN TO GOOD CHC/LIKELY BY MON.
STILL EXPECT DIURNAL REDUCTION IN COVERAGE OVER LAND...BUT INCREASE
OVER THE WATER. WILL KEEP THIS DISC SHORT AS POTENTIAL SVR WX
DEVELOPING RAPDILY IN THE TPA BAY AREA.
WILL KEEP FLD WATCH FROM PASCO SOUTH TO LEE ALONG THE COAST THROUGH
SUN. NOT EXPECTING A FLD WATCH TO BE EXTENDED BEYOND THIS PERIOD.
EXTENDED: LOOKS LIKE DEEP RIDGE WILL REMAIN OVER THE SE US
THROUGH THURS...KEEPING AREA IN EASTERLY FLOW. WILL KEEP NEAR CLIMO
POPS AND TEMPS THROUGH THE PERIOD.
MARINE: WESTERLY GRADIENT WITH NO HIGHLIGHTS EXPECTED THROUGH EARLY
NEXT WEEK.
PRELIM S:
TPA TT 073/085 074/089 074 5654
FMY TT 073/085 073/089 074 7865=
.TBW...FLOOD WATCH TONIGHT THROUGH SUNDAY FOR PASCO...PINELLAS...
HILLSBOROUGH...MANATEE...SARASOTA...CHARLOTTE...LEE. WILL
REMOVE HARDEE AND DESOTO FROM WATCH.
MORALESIn the hours before
Local storm report, Aug 12, 9:58 AM EDT, 4 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
958 AM EDT SAT AUG 12 2000
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0140 AM FL WIND DAMAGE
08/12/00 HILLSBOROUGH POWER LINES DOWN
NORTHERN PORTIONS OF
THE COUNTY.. REPORTED
BY UTILITIY COMPANY.
0230 AM DADE CITY FL WIND DAMAGE
08/12/00 PASCO POWER LINES DOWN.
REPORTED BY UTILITY
COMPANY.
0515 AM RUSKIN FL WIND DAMAGE
08/12/00 HILLSBOROUGH POWER LINES DOWN.
REPORTED BY UTILITY
COMPANY.The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 4:55 AM EDT | Severe Thunderstorm Warning | TBW | Hillsborough, Manatee | 35 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.