Tornadoes · United States · Florida · 2005

F1 tornado, Bradenton, Florida, July 9, 2005

This F1 tornado ran 0.5 miles across Manatee County on July 9, 2005, touching down at 6:00 AM EDT and reaching 150 yards wide. It killed nobody, and did $210,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F1
Date
July 9, 2005
Touchdown
6:00 AM EDT (10:00 UTC)
Path length
0.5 miles (0.8 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
0
Property damage
$210,000
County
Manatee County
Touchdown point
27.530, -82.430
Lift-off point
27.480, -82.400
Record number
278

What the Weather Service recorded

A tornado related to Hurricane Dennis in the Hidden Oaks and Greyhawk Landing communities collapsed a large concrete block barn with a metal roof as one of the walls was pushed inward, shredded several pool cages, and uprooted many trees. The maximum wind was estimated at 90 MPH.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 05:40 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

What forecasters said that day

The local office's own words before the tornado touched down, 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 the tornado touched down at Jul 9, 4:45 AM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Jul 9, 4:45 AM EDT, 1 hour 15 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
445 AM EDT SAT JUL 9 2005

.UPDATE...WILL UPDATE ZONES AND COASTALS TO UPGRADE THE TROPICAL
STORM WATCH FROM ANCLOTE KEY TO SUWANNEE RIVER TO A TROPICAL STORM
WARNING AS PER LATEST TPC ADVISORY.

PREVIOUS DISCUSSION FOLLOWS WITH UPDATED W/W/A SECTION...

.SHORT TERM (TODAY - MONDAY)...OUTER FEEDER BANDS CONTINUE TO MOVE
RAPIDLY NORTHWEST ACROSS THE CENTRAL AND SOUTHERN FORECAST AREA EARLY
THIS MORNING WELL AHEAD OF HURRICANE DENNIS WHICH HAS NOW JUST
EMERGED OFF THE NORTH COAST OF CUBA. AS DENNIS CONTINUES TO MOVE
NORTHWEST OVER THE ADJACENT GULF WATERS INCREASING SHEAR WITHIN THE
ATMOSPHERE WILL SUPPORT SMALL SHORT LIVED TORNADOES WITHIN THESE
BANDS ACROSS THE REGION TODAY THROUGH SUNDAY AS THE FAVORABLE RIGHT
FRONT QUADRANT OF DENNIS MOVES OVER THE REGION THROUGH TONIGHT.

MODEL CONSENSUS AND OFFICIAL TPC TRACK KEEPS DENNIS ROUGHLY 200 MILES
TO THE WEST OF THE TAMPA BAY AREA...WHICH SHOULD KEEP THE WORSE
CONDITIONS CONFINED TO THE COASTAL WATERS...HOWEVER WITH THE FORECAST
AREA ON THE EASTERN SIDE OF DENNIS (STRONGEST SIDE) STRONG SQUALLS
WITH VERY HEAVY RAINS AND WIND GUSTS UP TO TROPICAL STORM STRENGTH
ARE LIKELY TO IMPACT COASTAL COUNTIES FROM LEE COUNTY NORTH TO PASCO
COUNTY TODAY THROUGH SUNDAY...WITH THESE CONDITIONS SPREADING NORTH
TO MY NORTHERN MOST ZONES THIS AFTERNOON AND TONIGHT.

FURTHER INLAND WINDS ARE EXPECTED TO INCREASE INTO THE 20 TO 25 MPH
RANGE WITH GUSTS UP TO TROPICAL STORM FORCE IN SQUALLS ALONG WITH
VERY HEAVY RAINS. EXTENSIVE CLOUD COVER AND HIGH RAIN CHANCES WILL
KEEP TEMPS SLIGHTLY BELOW NORMAL THROUGH SUNDAY.

BASED ON THE LATEST OFFICIAL TRACK OF DENNIS BY TPC...NO CHANGES TO
THE CURRENT WATCHES/WARNINGS STATUS LISTED BELOW...BUT IF NEEDED WILL
MAKE ANY ADJUSTMENTS IN A QUICK UPDATE LATER THIS MORNING AFTER THE
NEXT ADVISORY ISSUANCE AROUND 5 AM EDT. FOR ADDITIONAL INFORMATION
ON DENNIS...SEE OUR HURRICANE LOCAL STATEMENT (HLSTBW).

.LONG TERM (MON NIGHT - FRI)...HIGH PRESSURE RIDGE AXIS WILL FILL IN
BEHIND WHATS LEFT OF DENNIS. BY LATE TUE A SECONDARY HIGH WILL
BREAK OFF INTO THE CENTRAL GULF. FL WILL BE IN THE WEAKNESS IN
BETWEEN. MODEL GUIDANCE SUGGESTING THAT THE REMAINS OF DENNIS WILL
REMAIN OVER THE APPALACHIANS WITH GENERAL TROUGHINESS FILLING IN THE
WEAKNESS. YESTERDAY ATTM GUIDANCE HAD A RIDGING OVER CENTRAL FL BY
THE END OF THE PERIOD...SO THIS IS QUITE THE FLIP FLOP. FOR NOW THE
NEWER SOLN LOOKS MORE REASONABLE GIVEN LATEST TPC FORECAST.

EITHER WAY...WELL HAVE SCT AFTN SHOWERS AND TSTMS EACH DAY...WITH
TEMPS NEAR CLIMO EACH DAY.

&&

.MARINE...CONDITIONS OVER THE ADJACENT GULF COASTAL WATERS WILL
DETERIORATE RAPIDLY FROM SOUTH TO NORTH TODAY AS HURRICANE DENNIS
MOVES NORTHWEST INTO THE EASTERN GULF. BASED ON THE CURRENT OFFICIAL
TRACK OF DENNIS VIA TPC...TROPICAL STORM FORCE WINDS WITH GUSTS TO
HURRICANE FORCE WILL IMPACT THE OUTER COASTAL WATERS FROM BONITA
BEACH NORTH TO ENGLEWOOD BEGINNING LATER THIS MORNING...WITH THESE
CONDITIONS SPREADING FURTHER NORTH DURING THIS AFTERNOON AND TONIGHT.
CLOSER TO SHORE...WINDS WILL BE INCREASE INTO THE 20 TO 25 KNOTS
RANGE WITH GUSTS TO TROPICAL STORM FORCE LATER THIS MORNING
THROUGH TONIGHT. INCREASING WINDS AND SEAS WILL LEAD TO COASTAL
FLOODING PROBLEMS...WITH TIDES EXPECTED TO RUN SOME 4 TO 6 FEET ABOVE
NORMAL. MARINERS ARE URGED TO REMAIN IN PORT.

&&

.FIRE WEATHER...HIGH RAIN CHANCES WILL PRECLUDE ANY RED FLAG
CONDITIONS OVER THE NEXT FEW DAYS...HOWEVER STRONG 20 FOOT AND
TRANSPORT WINDS WILL MAKE FOR VERY HIGH DISPERSION INDICES TODAY
THROUGH SUNDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA 86 77 86 79/ 100 70 50 40
FMY 86 77 87 76/ 100 70 50 40
GIF 86 76 86 76/ 100 70 50 40
SRQ 86 78 86 78/ 100 70 50 40
BKV 87 77 86 78/ 100 80 60 40

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
 TORNADO WATCH 626 UNTIL 9 AM EDT FOR MANATEE...SARASOTA...HARDEE...
  DESOTO...HIGHLANDS...CHARLOTTE AND LEE COUNTIES.
 TROPICAL STORM WARNING FROM BONITA BEACH TO SUWANNEE RIVER.
 WIND ADVISORY 8 AM TODAY UNTIL 8 AM SUNDAY FOR SUMTER...POLK...
  HARDEE AND HIGHLANDS COUNTIES.
 FLOOD WATCH 8 AM TODAY UNTIL 8 AM SUNDAY ALL ZONES.

SHORT TERM...JCM
LONG TERM/UPDATE....RJS

In the hours before

Special weather statement, Jul 9, 12:02 AM EDT, 5 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1202 AM EDT SAT JUL 9 2005

FLZ061-062-090445-
CHARLOTTE-DE SOTO-
1202 AM EDT SAT JUL 9 2005

...STRONG THUNDERSTORMS WILL AFFECT NORTHEAST CHARLOTTE AND SOUTHERN
DESOTO...

...A LINE OF THUNDERSTORMS WITH GUSTY WINDS...AN OUTER RAIN BAND
FROM HURRICANE DENNIS...IS MOVING NORTHWEST AT 30 MPH...AND WILL
AFFECT BABCOCK RANCH AND FORT OGDEN...UNTIL 1245 AM EDT. GUSTY WINDS
40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR DAMAGE TO
TREE LIMBS AND WIRES IS POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING
IS EXPECTED. IF CAUGHT OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY
FROM TALL OBJECTS. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON
ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS.

RJS

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Tampa Bay, FL (KTBW), 00:00Z

10.0 hours before the tornado, 22 km from the path. July 9, 2005.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 2005-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 877 joules per kilogram, CIN -52, lifted condensation level 847 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2005-07-09The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 90 square meters per square second, 0 to 6 km bulk shear 13 knots.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
877 J/kg
Mixed-layer CIN
-52 J/kg
Surface CAPE
953 J/kg
Mixed-layer LCL
847 m above ground
0-6 km bulk shear
13 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

Tampa Bay, FL (KTBW), 12:00Z

2.0 hours after it, 22 km from the path. July 9, 2005.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2005-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 77 joules per kilogram, CIN -118, lifted condensation level 739 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2005-07-09The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 0 square meters per square second, 0 to 6 km bulk shear 0 knots.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
77 J/kg
Mixed-layer CIN
-118 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
0 kt
0-1 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.7 K/km

Open this sounding in Storm Lab

The radar

The Tampa radar (KTBW), 22 km away, was scanning. The volume nearest the touchdown began at 10:00 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
09:50 UTCTORNADO1 S WauchulaHardee, FLEMERGENCY MANAGER DID STORM SURVEY. DAMAGE PATH WAS 1/2 MILE LONG AND 200 YARDS WIDE. ONE OLDER HOME HAD THE ROOF TORN OFF AND WAS ROTATED OFF ITS FOUNDATION. DAMAGE AMOUNT AROUND 35 THOUSAND DOLLARS.
10:00 UTCTORNADOBradentonManatee, FL2 HOMES WITH MINOR DAMAGE. TREE DOWN ON A CAR.
10:30 UTCTORNADOTampaHillsborough, FLHAM RADIO REPORT OF A TORNADO TOUCHDOWN NEAR THE PORT OF TAMPA. BUILDING AND TREE DAMAGE REPORTED.
10:55 UTCTSTM WND DMGPinellas ParkPinellas, FLTREES DOWN. ESTIMATED WIND GUST OF 60 MPH.
10:55 UTCTROPICAL STORMPinellas ParkPinellas, FLTREES DOWN. ESTIMATED WIND GUST OF 60 MPH.
10:58 UTCTORNADOSaint PetersburgPinellas, FLLAW ENFORCEMENT RELAY REPORT OF A PUBLIC SIGHTING OF A TORNADO TOUCHDOWN. TREES DOWN.
11:15 UTCTSTM WND DMGBrandonHillsborough, FLNUMEROUS TREE BRANCHES DOWN AT THE CORNER OF BRYON AND LUMSDEN.
11:15 UTCTROPICAL STORMBrandonHillsborough, FLNUMEROUS TREE BRANCHES DOWN AT THE CORNER OF BRYON AND LUMSDEN.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2005 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of July 9, 2005

8 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 95:50 AM EDTF0Hardee, FL1.0100$50,000
July 96:30 AM EDTF0Hillsborough, FL0.640$40,000
July 96:30 AM EDTF0Hillsborough, FL0.340
July 96:55 AM EDTF0Pinellas, FL0.140
July 912:00 PM EDTF0Hillsborough, FL0.540
July 92:40 PM EDTF0Citrus, FL0.740
July 96:54 PM MDTF0Lincoln, CO0.150
July 910:40 PM EDTF0Suwannee, FL1.025

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.