Storm Events Database

Event Details:

Event Flood
-- Flood Cause Heavy Rain / Snow Melt
County/Area WHITMAN
Report Source Law Enforcement
NCEI Data Source CSV
Begin Date 2011-01-16 20:00:00.0 PST-8
Begin Location 1SSE HORN
Begin Lat/Lon 46.9166/-117.0406
End Date 2011-01-18 08:00:00.0 PST-8
End Location 2SE PALOUSE
End Lat/Lon 46.9043/-117.0401
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 25.00K
Crop Damage 0.00K
Episode Narrative An unseasonably warm and wet period resulted in minor flooding along the Palouse River in Whitman County. The Inland Northwest remained in the warm sector of a flat ridge with warm air advection into the region. The warm air scoured out the cold air in place, resulting in sharp rises to snow levels across extreme eastern Washington. Record November snowfall, followed by above average December snowfall, set the stage for a healthy low to mid elevation snow pack for many areas across extreme eastern Washington. In these areas, snow levels rose sharply during this period as a series of warm and wet weather systems produced heavy rainfall at times at mid and low elevations. Heavy rain, combined with the melting snow pack, resulted in small streams, as well as, main stem rivers running above flood stage in portions of extreme eastern Washington.
Event Narrative The Palouse River at Palouse overflowed its banks inundating portions of downtown. The hardest hit were low lying areas, where water surrounded homes and covered nearly all of Hayton Green Park on the west end of town. A basement of a local resident and a former school gymnasium were flooded on Main Street. Additional flooding was reported along the Palouse River upstream in Latah County. The Palouse River at Potlach went above its flood stage of 15 feet at 1630PST on the 16th; crested at 16.5 feet at 530PST on the 17th; and then went back below flood stage at 615PST on the 18th. No damage was reported.


Event Map:

All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 25.00K 0.00K
HORN WHITMAN CO. WA 01/16/2011 20:00 PST-8 Flood 0 0 25.00K 0.00K
Totals: 0 0 25.00K 0.00K