National Weather Service Raw Text Product

520 
NOUS43 KABR 142315
PNSABR
MNZ039-151115-

Public Information Statement
National Weather Service Aberdeen SD
615 PM CDT Thu Oct 14 2021

...NWS Damage Survey for 10/9/21 and 10/13/21 Tornado Events...

...An official NWS survey crew documented the following tornadoes, 
however several other tornadoes were recorded on both October 9th 
and October 13th across the region...

...October 9th Tornado South of Wheaton, MN...

Rating:                 EF0
Estimated Peak Wind:    85 mph
Path Length /statute/:  1.4339 miles
Path Width /maximum/:   10.0 yards
Fatalities:             0
Injuries:               0

Start Date:             10/09/2021
Start Time:             07:21 PM CDT
Start Location:         7 ENE Dumont / Traverse County / MN
Start Lat/Lon:          45.7613 / -96.2861

End Date:               10/09/2021
End Time:               07:23 PM CDT
End Location:           6 WSW Herman / Traverse County / MN
End Lat/Lon:            45.7749 / -96.2648

Survey Summary:
Tornado damage was first observed just to the northeast of the
intersection of 620th St and 760th Ave where a single cottonwood
tree in a line of trees was snapped at the base. About a mile to
the northeast on 770th Ave another cottonwood tree had a large
branch broken and leaves and twigs were scattered sporadically on
all sides of the road. The tornado then damaged a farmstead. An
empty grain bin was removed from the base and was lofted and
rolled roughly 0.4 miles to the northeast. Additional metal
debris was also noted along this path. A metal pole barn lost a
section of its roof and had a wall panel pushed in. Smaller
outbuildings were also damaged. 


...October 13th Tornado East of Wheaton, MN...

Rating:                 EF1
Estimated Peak Wind:    87 mph
Path Length /statute/:  0.4545 miles
Path Width /maximum/:   10.0 yards
Fatalities:             0
Injuries:               0

Start Date:             10/13/2021
Start Time:             4:20 PM CDT
Start Location:         6 SW Norcross / Traverse County / MN
Start Lat/Lon:          45.8019 / -96.293

End Date:               10/13/2021
End Time:               4:24 PM CDT
End Location:           6 SW Norcross / Traverse County / MN
End Lat/Lon:            45.8076 / -96.2894

Survey Summary:
A tornado touched down east of the intersection of MN Hwy 27 and
760th Ave. An eyewitness was outside at the time and observed the
tornado touch down in a corn stubble field just south of MN 27.
The resident quickly sheltered indoors. The tornado tracked north
across MN 27, damaging the farmstead. A tree was uprooted and fell
toward the house damaging the deck. Minor shingle damage occurred
to both houses on the property. Several pieces of farm implements
were slid or moved several feet from their original locations,
including a snow blower attachment and hay bale trailer. A large
machine shed lost a quarter of the roof. Debris from the roof was
tossed to the north, northwest about 80 yards. Large branches
were broken from the shelter belt. Sheet metal debris was lofted
roughly 200 yards into a nearby field to the north. Damage was
also evident in a corn crop north of the farm, ending the roughly
0.5 miles long path.


...October 13th Tornado North Northwest of Wheaton...

Rating:                 EF1
Estimated Peak Wind:    90 mph
Path Length /statute/:  2.8108 miles
Path Width /maximum/:   20.0 yards
Fatalities:             0
Injuries:               0

Start Date:             10/13/2021
Start Time:             04:18 PM CDT
Start Location:         1 ENE White Rock / Traverse County / SD
Start Lat/Lon:          45.9346 / -96.5524

End Date:               10/13/2021
End Time:               04:24 PM CDT
End Location:           2 E Blackmer / Traverse County / ND
End Lat/Lon:            45.9751 / -96.5564

Survey Summary:
The first evidence of the tornado was found in a convergent
damage pattern on the south side of a corn field at the
intersection of Traverse County Highway 9 and 740th St. The
tornado tracked almost due north, damaging a farmstead just
south of 750th St. A pine tree was snapped at the base. A quarter
of the roof of a metal pole barn was ripped from steel rafters
and tossed to the west northwest, damaging a power line. Another
pole barn was completely destroyed. The southwest side of the
pole barn had poles lifted entirely out of the ground while east
side walls remained intact. Some sheet metal from the barn was
lofted into a tree shelter belt just to the north. Evidence of
the tornado continued a mile north where downed tree branches and
tree debris were noted crossing 760th St. The last signs of the
tornado damage was just south of 770th St  where a grain auger
and hay trailer were flipped on their sides. The total length was
just shy of 3 miles from beginning to end.


&&

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.

$$