EF1 tornado, Canton, Texas, May 2, 2008

1. EF065 to 85 mph

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

2. EF186 to 110 mphthis tornado

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

3. EF2111 to 135 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. EF3136 to 165 mph

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

5. EF4166 to 200 mph

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

6. EF5over 200 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.

Rating

EF1

Date

May 2, 2008

Touchdown

8:30 AM CDT (13:30 UTC)

Lifted

8:34 AM CDT (13:34 UTC)

On the ground

4 minutes

Path length

1.3 miles (2.1 km)

Path width

75 yards (69 m)

Deaths

0

Injuries

8

Property damage

$300,000

County

Van Zandt County

Touchdown point

32.560, -95.871

Lift-off point

32.560, -95.848

Record number

0805020730-01

Storms developed along an advancing cold front. A tornado developed near Canton, TX, and did damage at an outdoor trade event. Several minor injuries were reported.

A damage survey conducted by the National Weather Service in Fort Worth found that a tornado touched down at a park near Highway 64 and Old Kaufman Road. Several trees were damaged, a power pole was broken, and fencing was blown down. East of the park, two power poles were broken along Highway 64. A mobile home to the northeast suffered minor roof damage and a shed was damaged. The tornado then moved through the First Monday trade site, heavily damaging several trees and pushing over a trailer in the western portion of the grounds. Several vehicles were damaged by falling trees and limbs. Additional tree damage was noted as the tornado approached Highway 19. The damage swath ended about 200 yards east of Highway 19. This tornado was rated a low EF-1 with maximum sustained winds of 85-90 MPH. Two people were trapped in a van under a fallen tree in the First Monday parking lot. A truck travelling north on Highway 19 was thrown 38 yards. The driver was not injured.

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

0 minutes of warning. NWS FWD issued a tornado warning for this county at 13:30 UTC, 0 minutes before the tornado touched down, in force until 14:00 UTC.

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 Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 12:45 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 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.

The Dallas/Ft Worth radar (KFWS), 135 km away, was scanning. The volume nearest the touchdown began at 13:30 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.

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

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

The live radar over the trackEvery 2008 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

39 more were confirmed in the United States that day.

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.

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