Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 14, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 29, 2001, 2:50 PM EST for Manatee County, Sarasota County, Florida. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 29, 2001, 2:50 PM EST (19:50 UTC)
- Expired
- Mar 29, 2001, 3:45 PM EST
- In force
- 55 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
Counties Manatee County, FL, Sarasota County, FL
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 7.8 hours before the alert went out and 42 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
- 954 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 343 m²/s²
- 0-3 km storm-relative helicity
- 401 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 12.4
The text
As transmitted, in the capitals the NWS used until 2016.
530 WUUS52 KTBW 291952 SVRTBW FLC081-115-292045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 250 PM EST THU MAR 29 2001 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MANATEE COUNTY IN FLORIDA. SARASOTA COUNTY IN FLORIDA. * UNTIL 345 PM EST. * AT 250 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS...FROM 14 MILES NORTHWEST OF PALMETTO TO 29 MILES WEST OF VENICE...MOVING EAST AT 30 MPH. * SEVERE THUNDERSTORMS WILL AFFECT... LONGBOAT KEY. BRADENTON. SARASOTA. BEE RIDGE. LAUREL. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. WIND GUSTS TO 60 MPH WILL CAUSE SOME STRUCTURAL DAMAGE...MAINLY TO TREES AND POWER LINES. POORLY ANCHORED ROOFS...MOBILE HOMES...AND SHEDS ARE ALSO AT RISK. $$ 67 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 Mar 29, 2:30 PM EST, 20 minutes earlier.
Area forecast discussion, Mar 29, 2:30 PM EST, 20 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
230 PM EST THU MAR 29 2001
BUSY DAY CONTINUES WITH SQUALLINE NOW MOVING VERY SLOWLY THROUGH THE
CENT FA. HEAVY RAINFALL STILL EXPECTED THROUGH THE AFTN AS LINE
SLOWLY SINKS SOUTHWARD. SCT SHOWERS AND TSTMS EXPECTED TO DEVELOP
FARTHER SOUTH OF THE LINE IN THE VERY WARM AND MODERATELY UNSTABLE
AIRMASS. CURRENT WATCH OVER THE CENT FA EXPECTED TO EXPIRE AT 2 PM.
WILL MONITOR STORM POTENTIAL FARTHER SOUTH...BUT SPC NOT EXPECTING TO
ISSUE ANOTHER WATCH ATTM.
FCST DISC:
MODELS INDICATING THAT NEXT SHOT OF UPPER ENERGY...CURRENTLY OVER
THE SCENT GULF...WILL MOVE ENE TOWARD THE S 1/2 OF THE FA
EARLY TONIGHT. LATEST SPC DISC INDICATES THAT THIS ENERGY MAY IGNITE
MORE TSTMS...MAINLY S OF OUTFLOW BOUNDARY PRODUCED BY CURRENT
SQUALLINE. THUS...WILL WORD FOR LIKELY TSTMS AGAIN TONIGHT...WITH
SOME STRONG POSSIBLE S 1/2 FA. FCST CONTINUES TO BE DIFFICULT THROUGH
THE EARLY WEEKEND AS MULTIPLE SHORT WAVES ROTATE THROUGH BASE OF
LARGE SCALE UPPER TROF. LOOKS LIKE THE BEST POPS FOR THE SHORT TERM
WILL BE TONIGHT THROUGH EARLY FRI...THEN MORE SCT LATER FRI AND SAT.
EXTENDED:
ANOTHER VORT CENTER MOVES INTO MEAN UPPER TROF AXIS SAT NIGHT AND
SUN...WHICH AMPLIFIES OVERALL UPPER TROF OVER THE E US...AND
INCREASES CHCS FOR PRECIP AGAIN. SFC TROF GOES BY ON SAT...VEERING
WINDS TO MORE WESTERLY. THIS USUALLY DECREASES SVR/STRONG THREAT
FOR CONVECTION. WILL KEEP WORDING GENERIC FOR NOW. LATEST AVN DRIES
ENTIRE FA OUT BY SUN NIGHT (AT LITTLE QUICKER THAN OLD MRF) AS DEEP
UPPER TROF MOVES THROUGH THE MID ATLC. COOLER AND DRIER THROUGH
WED...THEN MODERATING TEMPS THURS AS UPPER HTS RISE AGAIN.
MARINE:
CURRENT E GULF OBS STILL IN THE SCA RANGE...BUT LOOKING FARTHER WEST
IN GULF WINDS AND SEAS COMING DOWN...WHICH MATCHES TRENDS IN
MODELS. WILL LIKELY LOWER TO SCEC TONIGHT. SCEC CONDITIONS EXPECTED
TO LINGER INTO FRI...THEN DECREASE AS GRAD SLACKENS LATER FRI THROUGH
SAT. WINDS AND SEAS INCREASING AGAIN BEHIND FRONT SUN AND MON.
THANKS FOR COORD MLB.
PRELIM S:
TPA TE 065/079 068/079 +644
FMY TE 067/083 069/082 8644=
.TBW...SMALL CRAFT EXCERISE CAUTION TONIGHT BONITA BEACH TO SUWANNEE
RIVER OUT 60NM INCLUDING TAMPA BAY.
MORALESIn the hours before
Special weather statement, Mar 29, 12:10 PM EST, 2 hours 40 minutes before
FLZ039-042-043-048>052-055-291900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1210 PM EST THU MAR 29 2001 ...SEVERE THUNDERSTORM WATCH CANCELED FOR LEVY...CITRUS...HERNANDO... SUMTER...AND PASCO COUNTIES... ...SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 2 PM FOR PINELLAS... HILLSBOROUGH...MANATEE AND POLK COUNTIES... AT 12 PM...NATIONAL WEATHER SERVICED DOPPLER RADAR INDICATED THAT THE LINE OF STRONG SHOWERS AND THUNDERSTORMS HAD MOVED SOUTHWARD INTO WEST CENTRAL FLORIDA. THEREFORE...THE SEVERE THUNDERSTORM WATCH FOR LEVY...CITRUS...HERNANDO...PASCO AND SUMTER COUNTIES HAS BEEN CANCELED. THE LINE OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO MOVE MUCH MORE SLOWLY THROUGH CENTRAL FLORIDA...WITH STRONG GUSTY WINDS...SMALL HAIL...AND HEAVY RAINFALL OF 1 TO 2 INCHES STILL EXPECTED WITH ANY STRONG TO SEVERE THUNDERSTORMS. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL MEDIA OUTLETS FOR ADDITIONAL STATEMENTS AND OR WARNINGS SHOULD THEY BECOME NECESSARY. MORALES
Special weather statement, Mar 29, 2:10 PM EST, 40 minutes before
FLZ039-042-043-048>052-055-291930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 210 PM EST THU MAR 29 2001 ...SEVERE THUNDERSTORM WATCH FOR PINELLAS...HILLSBOROUGH...MANATEE AND POLK COUNTIES HAS BEEN ALLOWED TO EXPIRE... ALTHOUGH THE SEVERE THUNDERSTORM WATCH HAS EXPIRED ACROSS PINELLAS... HILLSBOROUGH...MANATEE AND POLK COUNTIES...THE THREAT FOR LOCALLY HEAVY RAINFALL...GUSTY WINDS...AND SMALL HAIL WILL CONTINUE ACROSS SOUTHERN POLK...AND MUCH OF MANATEE COUNTY UNTIL ABOUT 4 PM. FATHER SOUTH...CONDITIONS MAY BECOME MORE FAVORABLE FOR SEVERE WEATHER...GENERALLY SOUTH OF A LINE FROM SARASOTA TO SEBRING LATER THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL MEDIA OUTLETS IN THE EVENT ANOTHER SEVERE WEATHER WATCH IS ISSUED...OR ANY STATEMENTS AND WARNINGS BECOME NECESSARY. MORALES
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 9:14 AM EST | Severe Thunderstorm Warning | TBW | Levy | 46 min |
| Mar 29, 9:25 AM EST | Severe Thunderstorm Warning | TBW | Citrus, Hernando | 50 min |
| Mar 29, 9:25 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Pinellas | 50 min |
| Mar 29, 10:00 AM EST | Tornado Warning | TBW | Hernando, Pasco | 30 min |
| Mar 29, 10:10 AM EST | Severe Thunderstorm Warning | TBW | Sumter | 35 min |
| Mar 29, 10:13 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Pinellas | 32 min |
| Mar 29, 10:33 AM EST | Severe Thunderstorm Warning | TBW | Pasco | 27 min |
| Mar 29, 10:45 AM EST | Severe Thunderstorm Warning | TBW | Polk | 45 min |
| Mar 29, 10:59 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Sumter | 31 min |
| Mar 29, 11:30 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Polk | 30 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.