Big Lost River near Arco

Last updated: Jul 23, 2025, 7:09 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 6.5 - Widespread lowland flooding probable from Darlington/Moore areas downriver to the INL Complex boundary. Bank erosion possible. Bridges along US HWY 93 may have water near their base.
  • 5.5 - Big Lost River within 1 foot of bankfull in many locations between Darlington/Moore areas to the INL Complex boundary. Some minor lowland flooding and ponding of water may occur. Isolated erosion possible along James Creek south of the Moore bridge.

Gauge Info

Coordinates 43.5823, -113.271
RFC NWRFC
State ID
WFO PIH
County Butte
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 13132500

Gauge Location

Recent Crests

1. 5.00 ft on 06-21-2019
2. 5.70 ft on 06-03-2018
3. 5.87 ft on 06-23-2017
4. 1.99 ft on 06-01-2016
5. 1.99 ft on 06-01-2015

Historic Crests

1. 7.68 ft on 07-05-1967
2. 7.32 ft on 07-12-1983
3. 7.26 ft on 06-09-1986
4. 7.10 ft on 06-14-1997
5. 6.86 ft on 07-02-1982

Vertical Datum Table

type NAVD88
major Flooding N/A
moderate Flooding N/A
minor Flooding 5246.29 ft
action 5245.29 ft
Latest Value 5241.80 ft
Gauge Zero 5239.79 ft

Gauge Photos

No Images Found

Probability Information

No Images Available

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Pocatello
1945 Beechcraft Ave
Pocatello, ID 83204
Official Homepage