EF1 tornado, Wyman, Michigan, August 23, 2007

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

August 23, 2007

Touchdown

4:01 PM EDT (20:01 UTC)

Lifted

4:02 PM EDT (20:02 UTC)

On the ground

1 minutes

Path length

0.2 miles (0.3 km)

Path width

200 yards (183 m)

Deaths

0

Injuries

0

Property damage

$150,000

Crop damage

$25,000

County

Montcalm County

Touchdown point

43.450, -84.980

Lift-off point

43.450, -84.980

Record number

0708231401-01

A large severe weather event unfolded on August 23rd and resulted in numerous reports of wind damage. A confirmed tornado in Montcalm county resulted in minimal damage to several sheds and thousands of trees were either uprooted or snapped off in a rural portion of the county.

Surveys conducted by the NWS confirmed two main damage paths near the border of Home and Richland townships. These damage paths were located just north and south of Cutler road. ||The first damage path began about one mile west of the Cutler road and Vickeryville road intersection and extended northeast about one mile. The damge path was 100 to 200 yards wide. The vast majority of the damage was from straight line winds, but there was evidence of a very brief tornado touchdown in the damage path. ||Thousands of trees were uprooted or snapped off in the two damage paths. |This damage was consistent with EF-1 damage with maximum tornadic winds of 90 to 100 mph.

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

Mount Pleasant (MOP), 27 km from the path, in the two hours either side.

From the Iowa Environmental Mesonet's archive of airport observations.

The Grand Rapids radar (KGRR), 77 km away, was scanning. The volume nearest the touchdown began at 20:01 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.

The live radar over the trackEvery 2007 tornado in MichiganEvery tornado in Michigan since 1950Warnings in force in Michigan nowThe forecast where you are

2 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.