Tornadoes · United States · Florida · 2003
F0 tornado, Dade City, Florida, June 29, 2003
This F0 tornado ran 0.7 miles across Pasco County on June 29, 2003, touching down at 6:52 PM EDT and reaching 100 yards wide. It killed nobody, and did $40,000 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.
F040 to 72 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- F0
- Date
- June 29, 2003
- Touchdown
- 6:52 PM EDT (22:52 UTC)
- Path length
- 0.7 miles (1.1 km)
- Path width
- 100 yards (91 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $40,000
- County
- Pasco County
- Touchdown point
- 28.370, -82.180
- Lift-off point
- 28.370, -82.180
- Record number
- 403
What the Weather Service recorded
A tornado passed through Dade City and damaged mostly trees and power lines over an area 12 blocks long and one block wide, basically along Coleman Street between 7th Ave and 17th Ave. The tornado wind estimate was 70 mph. Damage to four homes and three cars were a result of trees falling on them. Many trees were pushed over by the tornado but most of these trees had signs of rot and the ground was saturated. The local utility reported 2,700 people without power after the event. Damage was estimated at $40,000 but cleanup costs was estimated at $60,000.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
4 minutes of warning. NWS TBW issued a tornado warning for this county at 22:48 UTC, 4 minutes before the tornado touched down, in force until 23:00 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 22:48 UTC | 23:00 UTC | Tornado Warning | TBW |
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 General Thunderstorms Risk. The outlook in force was issued at 20:01 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.
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), 12:00Z
10.9 hours before the tornado, 77 km from the path. June 29, 2003.
- Mixed-layer CAPE
- 1031 J/kg
- Mixed-layer CIN
- -109 J/kg
- Surface CAPE
- 408 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.6 K/km
Tampa Bay, FL (KTBW), 00:00Z
1.1 hours after it, 77 km from the path. June 30, 2003.
- Mixed-layer CAPE
- 1023 J/kg
- Mixed-layer CIN
- -25 J/kg
- Surface CAPE
- 2263 J/kg
- Mixed-layer LCL
- 1539 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 7.2 K/km
The surface observations
Brooksville (Asos) (BKV), 29 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 20:53 UTC | 88 | 77 | 40° 8 kt | 1021.3 | ||
| 21:35 UTC | 86 | 77 | 60° 10 kt | 1021 | VCTS | |
| 21:45 UTC | 86 | 77 | 40° 9 kt | 1021 | VCTS | |
| 21:53 UTC | 87 | 77 | 50° 15 kt | 20 | 1021 | TS |
| 22:07 UTC | 78.8 | 66.2 | 90° 17 kt | 31 | 1022 | +TSRA |
| 22:11 UTC | 75.2 | 64.4 | 50° 16 kt | 31 | 1021 | +TSRA |
| 22:19 UTC | 75.2 | 66.2 | 60° 5 kt | 1020.7 | -RA | |
| 22:21 UTC | 75.2 | 68 | 50° 5 kt | 1021 | -RA | |
| 22:53 UTC | 76 | 70 | 30° 4 kt | 1021 | VCTS | |
| 23:33 UTC | 77 | 69.8 | 100° 14 kt | 21 | 1021.7 | |
| 23:53 UTC | 74 | 69 | 0° 0 kt | 1021.7 | -RA |
From the Iowa Environmental Mesonet's archive of airport observations.
This ground now
The live radar over the trackEvery 2003 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of June 29, 2003
1 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 29 | 11:52 PM EDT | F0 | Charlotte, FL | 0.7 | 100 | $50,000 |
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.