A long-track tornado touched down at 4:31 pm east of Mattoon in Shawano County and continued northeast to the Oconto-Marinette County line. The tornado was on the ground for at least 40 miles, and was over 1/2 mile wide at times. Over 14000 acres of trees were snapped or flattened and many dozens of buildings were damaged or destroyed. The twister was rated an EF3 on the Enhanced Fujita scale, with estimated winds of 140 to 160 mph. Damage by this tornado alone exceeded $15 million (property and timber).
|Tornado passing south of the city of White Lake in Langlade Co. Picture courtesy WAOW-TV. Click for larger image.||Tornado as seen from HWY T in southwest Oconto Co. Picture courtesy Wisc. DNR. Click for larger image.|
|Path of long-track tornado. Thanks to Wisc. DNR for their detailed aerial survey. Click for larger image.||Path of damage as viewed by Aqua MODIS satellite. Courtesy ERSC, UW-Madison. Click for larger image.|
|Damage at the Bear Paw Resort. Click for larger image.||More damage at the Bear Paw Resort. Click for larger image.|
As the tornado moved northeast into the Nicolet National Forest in Oconto County, it flattened tens of thousands of trees as it headed toward Highway 64. The damage path near Highway 64 was three-quarters of a mile wide! The twister caused EF2 damage four miles north of the city of Mountain on Highway 32, in the town of Riverview, with estimated winds of around 130 mph. The width of the tornado in this area was almost 1/2 mile.
This is what remained of a double-wide mobile home in the town of Riverview. The owner heard the Tornado Warning and went into the bathtub (circled in large view), and escaped without a scratch! Click for larger image.
Tens of thousands of trees, many pines, were snapped or uprooted along the damage path. Few, if any trees exhibited debarking.
|Tornado path across heavily forested area in northwest Menominee Co. Width of damage path was estimated at 1/2 mile in Menominee Co. Picture courtesy WLUK-TV. Click for larger image.||Looking northeast across Hwy 64 in Oconto Co. The damage path was as much as 3/4 mile wide in this area. Picture courtesy Wisc. DNR. Click for larger image.
Marathon County Tornado
At 4:01 pm, a tornado touched down 10 miles east of Mosinee in a forested area of Marathon County. It traveled 7.3 miles through farmlands and woodlands before lifting or dissipating about 4 miles south of Hatley, just north of Pike Lake. The width of the tornado was approximately 250 yards. The tornado was rated EF2, with winds estimated at 115 to 125 mph. Estimated damage from this twister was nearly $350,000.
|Video-still of the tornado, looking east, as it was headed toward Pike Lake. Click for larger image.||This photo was taken at about the same time looking south from the Hatley area. Picture courtesy WAOW-TV. Click for larger image.|
Hundreds of trees were snapped or uprooted along the path. Ten homes sustained at least minor damage.
Wood County HailHailstones of 4 to 5+ inches in diameter fell across Port Edwards and Wisconsin Rapids in Wood County around 4:30 pm. A hailstone 5.5" in diameter was measured in Port Edwards, which is the second largest hailstone in Wisconsin weather history. (The largest hailstone in Wisconsin is 5.7" in diameter which fell in Wausau in May 1921.)
|A large hailstone in Port Edwards, measured at 5.5 inches in diameter. Picture courtesy WAOW-TV. Click for larger image.||A hailstone nearly 5" in diameter in Wisc. Rapids. Click for larger image.|
|Reflectivity. Click to start animation.
||Storm-Relative Velocity. Click to start animation.