Public Information Statement
Issued by NWS Aberdeen, SD

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NOUS43 KABR 151911
PNSABR
MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-160715-

Public Information Statement
National Weather Service Aberdeen SD
211 PM CDT Thu Jun 15 2017 /111 PM MDT Thu Jun 15 2017/

...NWS DAMAGE SURVEY FOR 06/13/17 TORNADO EVENT...UPDATE #1...

UPDATE...includes findings from the second storm damage assessment
team. Additional data my be added.

.TORNADO #1...

Rating:                 EF-0
Estimated peak wind:    70 mph
Path length /Statute/:  0.1 miles
Path width /Maximum/:   10 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             416 PM CDT
Start location:         8.3 miles south of Rockham, SD

End date:               June 13, 2017
End time:               416 PM CDT
End location:           8.3 miles south of Rockham, SD

SURVEY_SUMMARY: Trained spotters reported a tornado briefly touching
                down in a open field. No damage was observed.

.TORNADO #2...

Rating:                 EF-1
Estimated peak wind:    100 mph
Path length /Statute/:  0.2 miles
Path width /Maximum/:   175 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             425 PM CDT
Start location:         4.9 miles southwest of Zell, SD

End date:               June 13, 2017
End time:               428 PM CDT
End location:           4.8 miles south-southwest of Zell, SD

SURVEY_SUMMARY: Witnesses observed the tornado touching down near the farm
                and lifting after only a few minutes. Storm survey found
                numerous snapped and uprooted trees around the farm. Many
                of those trees fell on a house that had two occupants. A
                roof was torn off of a barn and a machine shed was partially
                destroyed with debris thrown across a neighboring field.

.TORNADO #3...

Rating:                 EF-0
Estimated peak wind:    70 mph
Path length /Statute/:  0.1 miles
Path width /Maximum/:   10 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             432 PM CDT
Start location:         2 miles south-southwest of Zell, SD

End date:               June 13, 2017
End time:               432 PM CDT
End location:           2 miles south-southwest of Zell, SD

SURVEY_SUMMARY: Trained spotters reported a brief tornado. Scattered debris
                was noted in this area, but no damage was found.

.TORNADO #4...

Rating:                 EF-0
Estimated peak wind:    70 mph
Path length /Statute/:  0.1 miles
Path width /Maximum/:   10 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             605 PM CDT
Start location:         4 miles south of Groton

End date:               June 13, 2017
End time:               605 PM CDT
End location:           4 miles south of Groton

SURVEY_SUMMARY: Trained spotters observed a tornado south of Groton. No damage was
                discovered or reported.

.TORNADO #5...

Rating:                 EF-0
Estimated peak wind:    85 mph
Path length /Statute/:  0.2 miles
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             755 PM CDT
Start location:         3 miles east south east of Eden, SD

End date:               June 13, 2017
End time:               755 PM CDT
Start location:         3 miles east south east of Eden, SD

SURVEY_SUMMARY: A brief tornado touchdown caused the collapse of the entire roof of
a barn. Debris was lofted roughly 500 feet to the northeast. Minor roof damage also
occurred to a second out building along with minor tree damage and house siding
damage.

.TORNADO #6...

Rating:                 EF-1
Estimated peak wind:    90 mph
Path length /Statute/:  0.2 miles
Path width /Maximum/:   100 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             820 PM CDT
Start location:         2 miles west southwest of New Effington, SD

End date:               June 13, 2017
End time:               823 PM CDT
Start location:         2 miles west southwest of New Effington, SD

SURVEY_SUMMARY: Residents witnessed a small, short lived tornado briefly touchdown
on their property. Tree damage was extensive with many trees snapped at their trunks
or uprooted.

.TORNADO #7...

Rating:                 EF-0
Estimated peak wind:    85 mph
Path length /Statute/:  0.1 miles
Path width /Maximum/:   90 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             825 PM CDT
Start location:         2 miles north of New Effington, SD

End date:               June 13, 2017
End time:               825 PM CDT
Start location:         2 miles north of New Effington, SD

SURVEY_SUMMARY: A brief tornado touchdown damaged a tree grove. Multiple trees were
uprooted or snapped at the trunk. Large branches were downed and tossed in multiple
directions.

.TORNADO #8...

Rating:                 EF-1
Estimated peak wind:    110 mph
Path length /Statute/:  0.4 miles
Path width /Maximum/:   170 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             827 PM CDT
Start location:         4 miles north of Clinton, SD

End date:               June 13, 2017
End time:               830 PM CDT
Start location:         4.4 miles north northeast of Clinton, SD

SURVEY_SUMMARY: Storm chasers and residents observed a brief tornado on the leading
edge of a line of storms. The tornado moved over one farmstead damaging multiple
structures. Over half of the tin roof was ripped from the house along with
considerable damage to the siding of the house. One machine shed was completely
destroyed. Another machine shed had damage to the southward facing walls and lost
over half of the roof. A third machine shed had extensive damage to the westward
facing walls and lost over half of the roof. An empty grain bin was completely
removed from the cement base and an attached auger was toppled. Another grain bin
was dented at the top. One power pole was snapped, with other poles downed due to
the weight of the wires. Widespread tree damage including snapped trunks, uprooted
trees, and large broken branches occurred on the property. A small area of corn
crop was razed to the ground. Some debris was driven into the ground, while other
debris was lofted roughly 2000 feet to the northeast.

.TORNADO #9...

Rating:                 EF-1
Estimated peak wind:    90 mph
Path length /Statute/:  0.1 miles
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             June 13, 2017
Start time:             830 PM CDT
Start location:         2 miles northwest of Johnson, SD

End date:               June 13, 2017
End time:               833 PM CDT
Start location:         2 miles northwest of Johnson, SD

SURVEY_SUMMARY: A resident watched the tornado touchdown in an open field before
moving over their farmstead. Minor damage to a garage door and garage siding
occurred along with multiple uprooted trees and snapped trunks. Tree limbs and
branches were tossed in multiple directions.

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 event and publication in
NWS Storm Data.

$$


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