PROJECT ALERT NOTICE (ID) Moderate flooding in southeastern/southern Idaho

Date: Tue, 30 Apr 2024 08:30:52 EDT

Summary: A four day rain on snow event has caused moderate flooding and high flows in several drainages in southeastern and southern Idaho

affected area: Pocatello, Chubbuck, Tyhee, McCammon, Lava Hot Springs, Inkom, Idaho

Event: Over the past four days, rain on snow has caused moderate flooding and high flows in portions of the Portneuf River, Raft River, and lower Willow Creek basins.

Streamgages: 1 gage has experienced peak of record (13058520, Willow Creek Floodway Channel nr Ucon, ID) Q = 1,020 cfs. Regulated flow in the Willow Creek Basin below Ririe Reservoir

gages impacted (damaged or destroyed) All gages are operational

Three crews were dispatched on Monday (4/29) for flow measurements, rating verification, and rating establishment at newly installed sites.

Three crews are scheduled to be dispatched on Tuesday (4/30) to continue to monitor and measure flow in the impacted basins.

communication with cooperators and stakeholders are conducted as needed to assist with prioritization of sites needing visits.