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NOUS45 KCYS 291902
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NEZ002-003-019>021-054-055-095-096-WYZ101>119-300715-

PUBLIC INFORMATION STATEMENT
National Weather Service CHEYENNE WY
102 PM MDT Thu Jun 29 2023


...NWS Damage Survey for 06/28/2023 Kimball County Tornado Event...

A supercell first developed over Laramie County in southeast Wyoming 
dropping golf ball to baseball size hail while exhibiting mid-level 
rotation. The supercell was long lived and made its way into Kimball
County, Nebraska where it began to show tornadic structure. Based off
of radar and storm spotter reports, the estimated start point is just
southeast of the intersection of County Road 29 and 14 at around 6:35
PM MDT. The tornado tracked south-southeast, remaining mainly over 
open farmland, kicking up large amounts of dirt and dust. As the 
tornado tracked south-southeast it eventually crossed County Road
10 between County Road 29 and 33. At this site, there was very 
little damage aside from an insulator cap blown away and a loose 
wire on an electrical pole. The tornado continued travailing to 
the southeast on County Road 35, north of County Road 6, where 
it caused minor damage to a farmhouse and the surrounding barns
on the property. Tree limbs 1 to 3 inches in diameter were broken
and scattered across the property. A few shingles were torn off 
the farmhouse, an augur was pushed approximately 5 feet to the
southwest digging a groove in the soil, and a calving hut was
blown 20 feet and rotated about 100 degrees. A few hundred 
yards south down County Road 35 an electrical pole roughly 50 
years old was snapped at the base but still upright as it was 
still attached to the electrical wires. A plastic 5 gallon bucket
from the farmhouse was thrown about half a mile away from the 
home in a field off of County Road 6. Finally, the tornado 
dissipated over an open field just to the west of Highway 71,
about 2 miles southeast of the farmhouse at 6:45 PM MDT. 
Overall, damage seen was consistent with that of an EF-0 tornado
with maximum winds of 80 to 85 MPH.

At approximately 6:47 PM, video evidence from multiple sources
shows a satellite tornado formed to the northeast of the original
tornado after it dissipated. This tornado lasted about 1 to 2 
minutes and remained over open farmland near the intersection 
of County Road 10 and 31. No damage was reported, therefore the
tornado is classified as an EF-U.


.TORNADO #1...Southwest of Kimball

Rating:                 EF-0
Estimated Peak Wind:    80 to 85 mph
Path Length /statute/:  6.8 miles
Path Width /maximum/:   425 yards
Fatalities:             0
Injuries:               0

Start Date:             June 28, 2023
Start Time:             6:35 PM MDT
Start Location:         12.2 miles SW Kimball / Kimball County / Nebraska
Start Lat/Lon:          41.087 / -103.778

End Date:               June 28, 2023
End Time:               6:45 PM MDT
End Location:           15.2 miles SSW Kimball / Kimball County / Nebraska
End Lat/Lon:            41.017 / -103.693


.TORNADO #2...Satellite Tornado

Rating:                 EF-U
Estimated peak wind:    Unknown
Path length /Statute/:  Unknown
Path width /Maximum/:   Unknown
Fatalities:             0
Injuries:               0

Start date:             June 28, 2023
Start time:             6:49 PM MDT
Start location:         12.3 miles SSW Kimball / Kimball County / Nebraska
Start Lat/Lon:          41.063 / -103.706


&&

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.

$$