Public Information Statement
Issued by NWS Omaha/Valley, NE

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NOUS43 KOAX 221740
PNSOAX
NEZ089-230545-

Public Information Statement
National Weather Service Omaha/Valley NE
1240 PM CDT Thu Jun 22 2017

...NWS DAMAGE SURVEY FOR JUNE 16, 2017 TORNADO EVENT...

...Updated to include a tornado north northeast of Beatrice, NE,
and also to combine all existing tornado public information
statements...

Storm damage ground survey teams evaluated several areas of substantial
damage in eastern Nebraska and western Iowa on June 17, 19, and 20.
Evidence of multiple tornadoes was found with details below. There
were additional tornadoes confirmed by photographic and video evidence
that caused little to no damage and have been documented in local
storm reports. Furthermore, expansive areas of significant wind damage
were surveyed with wide swaths of damage being caused by straight-line
winds at times exceeding 100 mph.

Special thanks to local emergency management for assisting NWS storm
damage survey efforts for this expansive severe weather event.

.Beatrice, NE Tornado...

EF scale rating:        EF-0
Estimated peak wind:    85 mph
Path length /Statute/:  0.9 miles
Path width /Maximum/:   40 yards
Fatalities:             0
Injuries:               0

Start date:             June 16, 2017
Start time:             9:39 PM CDT
Start location:         5 miles north northeast of Beatrice
Start Lat/Lon:          40.33, -96.709

End date:               June 16, 2017
End time:               9:41 PM CDT
End location:           4 miles north northeast of Beatrice
End_lat/lon:            40.317, -96.701

Aerial images courtesy of Nebraska Emergency Management indicated a
small tornado developed and impacted one farm, destroying an empty
grain bin. The tornado continued to damage crops along its 0.9 mile
damage path before dissipating.

.Madison, NE Tornado...

EF scale rating:        EF-0
Estimated peak wind:    75 mph
Path length /Statute/:  4.5 mile
Path width /Maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start date:             06/16/2017
Start time:             550 pm CDT
Start location:         3.1 miles NE Madison, NE
Start Lat/Lon:          41.8660/-97.4218

End date:               06/16/2017
End time:               556 pm CDT
End location:           4.4 miles ESE Madison, NE
End_lat/lon:            41.8157/-97.3706

A brief tornado touched down northeast of Madison, NE in Madison
county, doing minor damage to some trees. The tornado was on the
ground about 4.5 miles with a path width of 25 yards and appeared
to dissipate before moving into Stanton county. The tornado was
also confirmed with storm chaser video and the start point has
been adjusted closer to highway 81 based on storm chaser photo.
It may have been an intermittent track at times with few reliable
damage indicators impacted.

.Hoskins, NE Tornado...

EF scale rating:        EF-1
Estimated peak wind:    98 mph
Path length /Statute/:  2.2 miles
Path width /Maximum/:   100 yards
Fatalities:             0
Injuries:               0

Start date:             06/16/2017
Start time:             532 pm CDT
Start location:         4.7 miles E Hoskins, NE
Start Lat/Lon:          42.1117/-97.2133

End date:               06/16/2017
End time:               537 pm CDT
End location:           6.3 miles SE Hoskins, NE
End_lat/lon:            42.0894/-97.1859

A tornado developed within a larger area of wind damage east of
Hoskins, NE in Wayne county. The tornado initially did EFO damage
to some outbuildings at a couple of farmsteads, before doing more
substantial EF1 damage to a couple more farmsteads along the
Wayne/Stanton county line. The tornado then dissipated shortly
thereafter in northern Stanton county. The tornado was also confirmed
by spotters and Emergency Management from both Wayne and Stanton
counties.

.Bellevue, NE Tornado #1...

EF scale rating:        EF-1
Estimated peak wind:    Up to 110 mph
Path length /Statute/:  Approximately 6.7 miles
Path width /Maximum/:   175 yards yards
Fatalities:             0 Injuries:               0

Start date:             06/16/2017
Start time:             Approximately 808 pm CDT
Start location:         Near Willow Lakes Golf Course
Start Lat/Lon:          41.1291/-95.9372

End date:               06/16/2017
End time:               Approximately 813 pm CDT
End location:           5.5 miles southeast of Offutt AFB
End Lat/Lon:            41.0710/-95.8338

A tornado developed just west of Offutt Air Force Base and moved
east southeast across the air force base property. The tornado
maintained an intermittent track southeast of the Air Force Base
with few available damage indicators until reaching a farm
1 mile west of Interstate 29 where it caused substantial tree and
farm building damage, as well as roof damage to a home.

.Bellevue, NE Tornado #2...

EF scale rating:        EF-2
Estimated peak wind:    Up to 135 mph
Path length /Statute/:  Approximately 9.3 miles
Path width /Maximum/:   To be determined
Fatalities:             0
Injuries:               0

Start date:             06/16/2017
Start time:             Approximately 805 pm CDT
Start location:         Approximately 2.2 miles southwest of Offutt
                        Air Force Base
Start Lat/Lon:          41.1012/-95.9572

End date:               06/16/2017
End time:               Approximately 818 pm CDT
End location:           Approximately 2.0 miles northwest of Glenwood IA
End Lat/Lon:            41.0646/-95.7892

This tornado developed in the Two Springs subdivision in
Bellevue, NE, moving east southeast affecting Pipers Glen, then
Hyda Hills, and Normandy Hills, then crossed the Missouri River and
dissipated before reaching Glenwood. EF2 damage was noted along the
path in Hyda Hills, with EF0-EF1 damage elsewhere along the path.
Substantial home damage was noted along some of the path. Additional
widespread straight-line wind damage was surveyed in the vicinity of
the tornado path, and as far west as 84th street in the Shadow Lake
subdivision.

.Southern Sarpy County and Surrounding Areas Wind Damage...

Peak wind:              110-120 mph based on damage indicators
Direction:              From the Northwest
Fatalities:             0
Injuries:               0

Start date:             June 16, 2017
Start time:             7:40 PM CDT

End date:               June 16, 2017
End time:               8:30 PM CDT

A powerful group of thunderstorms produced widespread winds of 60 to
80 mph across much of the area surrounding southern Sarpy county.
Within that broad area of wind, several areas of very intense wind
damage occurred with damage indicators suggesting peak wind speeds
of 100 to 120 mph from the north and northwest.

Perhaps the most intense damage was noted from approximately 3 miles
northwest of Springfield to just west of Springfield to 3 miles south
of Springfield where very large grain bins were dislodged and tumbled
nearly a half mile, many power poles were snapped, and widespread
significant tree damage occurred. Peak winds in this area were likely
in the 110-120 mph range.

Another area of more intense damage occurred in and near the Maha Scout
Camp at 63rd street and the Platte River. Tree damage in this area
indicated smaller areas of locally intense microburst winds which likely
approached 110 mph. Approximately 50 campers were present during the
storm with no injuries reported.

Additional areas of very intense winds occurred in southeast Sarpy county
and adjacent northeast Cass county and western Mills county Iowa to the
south of the EF-2 tornado track. Winds in these areas likely exceeded
100 mph.

.Gage County and Southeast Saline County Wind Damage...

Peak wind:              100-115 mph based on damage indicators
Direction:              From the North and Northwest
Fatalities:             0
Injuries:               0

Start date:             June 16, 2017
Start time:             8:50 PM CDT

End date:               June 16, 2017
End time:               10:10 PM CDT

A very intense supercell thunderstorm tracked from eastern Saline county
southeast across Gage county. This storm produced 60-80 mph winds
throughout much of its track with a narrower band of 80-115 mph winds
associated with the western rear flank downdraft portion of the storm.
These most intense winds tracked from near Wilber to De Witt to west
Beatrice to Big Indian Creek Reservoir. Damage indicators and radar
data suggest that within this several-mile-wide track there were strong
pulses of wind which produced the most intense damage.

One of the most intense areas was on the southwest side of Wilber where
part of a roof was removed and blown more than 100 yards and a storm
spotter truck was blown sideways approximately 3 feet. Another area of
more intense damage was on the far west side of Beatrice where
substantial tree damage occurred as well as some roof damage to homes
and businesses. The final area of very intense damage occurred
approximately 3 miles northwest of Blue Springs where a barn was
destroyed, the roof of a large shed caved in, several power poles were
snapped, and significant tree damage occurred.

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.

$$


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