...NWS damage survey for 09/01/14 Labor Day tornado event...
...Total now at four with two additional tornadoes confirmed by NWS Tuesday afternoon...
.Overview...A line of thunderstorms swept across northern Michigan on Labor Day and produced four tornadoes...three EF-1 tornadoes and one EF-0 tornado.
Information on the two most recently confirmed tornadoes is shown below.
.Reference tornado...Crawford County
Rating: EF-1 estimated peak wind: 100 mph path length /statute/: 9.1 miles path width /maximum/: 75 yards fatalities: 0 injuries: 0
Start date: sep_01_2014 start time: 0216_pm_edt start location: 1.5 miles SW of frederic_mi
End date: sep_01_2014 end time: 0229_pm_edt end location: 4 miles se of waters_mi
.Reference tornado...Cheboygan County
Rating: EF-0 estimated peak wind: 80 mph path length /statute/: 0.2 miles path width /maximum/: 30 yards fatalities: 0 injuries: 0
Start date: sep_01_2014 start time: 0243_pm_edt start location: 3.5 miles se of wolverine_mi
End date: sep_01_2014 end time: 0244_pm_edt end location: 3.5 miles se of wolverine_mi
Ef scale: the Enhanced Fujita scale classifies tornadoes into the following categories.
EF0...weak......65 to 85 mph EF1...weak......86 to 110 mph EF2...strong....111 to 135 mph EF3...strong....136 to 165 mph EF4...violent...166 to 200 mph EF5...violent...>200 mph
Note: the information in this statement is preliminary and subject to change pending final review of the events and publication in NWS storm data.