Storm Events Database

Event Details

Event Flood
-- Flood Cause Heavy Rain / Snow Melt
State WYOMING
County/Area PARK
WFO RIW
Begin Date 06/24/2011 19:00:00 MST-7
Begin Range 13
Begin Azimuth ENE
Begin Location MT WASHBURN
Begin Lat/Lon 44.87/-110.19
End Date 06/29/2011 18:00:00 MST-7
End Range 12
End Azimuth ENE
End Location MT WASHBURN
End Lat/Lon 44.87/-110.2
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 160.00K
Crop Damage 0.00K
Episode Narrative The high waters at the confluence of the Lamar River and Soda Butte Creek combined to undercut and damage a 200-foot-section of Yellowstone National Park's Northeast Entrance road. The first extended period of warm weather caused melting of a large late-season snowpack which increased flow in both channels. Flow on the Lamar River peaked on Friday, June 24, at around 11,000 cfs and crested near 9.5 feet. Only the eastbound lane of the road was impacted, but the erosion still necessitated complete closure of the road on June 24, while repairs were made. A second smaller section of the road was also damaged by the high water downstream from the larger washout. Crews used nearly 100 loads of rock and fill dirt to repair and stabilize the road which reopened to traffic the evening of Wednesday, June 29.
Event Narrative


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 160.00K 0.00K
MT WASHBURN PARK CO. WY 06/24/2011 19:00 MST-7 Flood 0 0 160.00K 0.00K
Totals: 0 0 160.00K 0.00K