Storm Events Database

Storm Events Database

Event Details

Event Tornado
-- Scale EF1
-- Length 4.55
-- Width 30
State WYOMING
County/Area WASHAKIE
WFO RIW
Begin Date 08/30/2010 12:51:00 MST-7
Begin Range 4
Begin Azimuth SW
Begin Location TEN SLEEP ARPT
Begin Lat/Lon 43.98/-107.49
End Date 08/30/2010 13:00:00 MST-7
End Range 0
End Azimuth SSW
End Location TEN SLEEP
End Lat/Lon 44.02/-107.42
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 70.00K
Crop Damage 0.00K
Episode Narrative A supercell thunderstorm formed over northern Hot Springs County and swept east-northeast across the Badlands through eastern Washakie County. The severe storm eventually moved into the Nowood River Valley south of Ten Sleep. Along its 40-mile track, the thunderstorm produced ping pong to golf ball sized hail and an EF1 tornado.
Event Narrative A tornado swept through Juniper trees on a high ridge before descending the hillside into the Nowood River Valley southeast of Ten Sleep. The tornado destroyed several well-built out buildings and downed at least 20, century-old Cottonwood trees on ranches in the valley.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 150.00K 25.00K
CROSBY HOT SPRINGS CO. WY 08/30/2010 11:50 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
TEN SLEEP ARPT WASHAKIE CO. WY 08/30/2010 12:51 MST-7 Tornado EF1 0 0 70.00K 0.00K
TEN SLEEP WASHAKIE CO. WY 08/30/2010 12:57 MST-7 Hail 1.50 in. 0 0 30.00K 25.00K
TEN SLEEP WASHAKIE CO. WY 08/30/2010 12:57 MST-7 Thunderstorm Wind 74 kts. MG 0 0 50.00K 0.00K
TEN SLEEP ARPT WASHAKIE CO. WY 08/30/2010 13:00 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
TEN SLEEP WASHAKIE CO. WY 08/30/2010 13:00 MST-7 Funnel Cloud 0 0 0.00K 0.00K
TEN SLEEP WASHAKIE CO. WY 08/30/2010 13:09 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
Totals: 0 0 150.00K 25.00K