Storm Events Database

Event Details

Event Tornado
-- Scale EF1
-- Length 0.36 Miles
-- Width 35 Yards
State WYOMING
County/Area BIG HORN
WFO RIW
Begin Date 06/01/2009 14:58:00 MST-7
Begin Range 7
Begin Azimuth NE
Begin Location RAIRDEN
Begin Lat/Lon 44.25/-107.8
End Date 06/01/2009 15:00:00 MST-7
End Range 6
End Azimuth NE
End Location RAIRDEN
End Lat/Lon 44.24/-107.81
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 5.00K
Crop Damage 0.00K
Episode Narrative A non-supercell tornado struck a ranch about nine miles east of Manderson.
Event Narrative A tornado struck a ranch, including a home, east of Manderson. Three children were in the house at the time of the tornado. The tornado was about 100 feet wide and traveled approximately one-third mile from north-to-south, crossing State Highway 31 before dissipating. Several trees, two fences, and a wooden corral sustained considerable damage. An All-Terrain Vehicle (ATV) was lifted, spun 180 degrees, and moved about 15 feet. A bicycle was tossed onto the roof of the ranch home and several water bins were tossed about.

This landspout tornado occurred in a post-cold frontal environment. A cold front moved through Manderson around 0830MST on Monday leaving northwest wind of 30 to 40 mph in its wake. Solar heating continued to warm the surface while colder air streamed into the region aloft. This helped set the stage for an unstable atmosphere during the afternoon. A west-moving boundary from showers to the east of Manderson in the Bighorn Mountain foothills helped initiate the updraft that spawned the tornado.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 5.00K 0.00K
RAIRDEN BIG HORN CO. WY 06/01/2009 14:58 MST-7 Tornado EF1 0 0 5.00K 0.00K
Totals: 0 0 5.00K 0.00K