Twentymile River near Portage

Last updated: Jul 24, 2025, 2:41 PM UTC
No watches, warnings or advisories are in effect for this area.

Gauge Info

Coordinates 60.8981, -148.922
RFC APRFC
State AK
WFO AFC
County Anchorage
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 15272380

Gauge Location

Recent Crests

1. 25.02 ft on 09-07-2011
2. 22.74 ft on 07-10-2010
3. 24.99 ft on 07-22-2009
4. 23.40 ft on 09-03-2008
5. 23.83 ft on 10-10-2006

Historic Crests

1. 25.88 ft on 10-03-2003
2. 25.47 ft on 08-29-2001
3. 25.02 ft on 09-07-2011
4. 24.99 ft on 07-22-2009
5. 24.87 ft on 10-24-2002

Gauge Photos

No Images Found

Probability Information

Photo 1 of 2

Unique Local Info

30 Day Graphs

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
Anchorage
6930 Sand Lake Road
Anchorage, AK 99502
Official Homepage