Real-Time Streamflows

IDAHO

Idaho Statewide Table >>

• South Fork of the Snake River

  • Near Irwin >>
  • Near Heise >>
  • At Lorenzo >>

• Henry's Fork of the Snake River

  • Near Island Park >>
  • Near Ashton >>
  • At St. Anthony >>

• Teton River

  • Near Driggs (South Leigh Creek) >>
  • Near St. Anthony >>

MONTANA

• Montana Statewide water reports >>
• Madison River near West Yellowstone >>
• Madison River below Hebgen Lake near Grayling >>
• Gibbon River at Madison Junction, Yellowstone National Park >>
• Firehole River near West Yellowstone, Montana >>

WYOMING

• Wyoming Statewide water reports >>
• Firehole River at Old Faithful, Yellowstone National Park >>
• Yellowstone River at Yellowstone Lake outlet >>

What does CFS mean?

• Cubic Feet Per Second
• 1 cubic foot per second = 7.4805 gallons flowing by a particular point in 1 second
• 1 cubic foot per second (cfs)..........450 gallons of water per minute
• One cubic foot is a box 12" x 12" x 12" or roughly the size of a basketball

Reservoir Levels

IDAHO

• Upper Snake River Basin >>
• Boise & Payette River Basin >>

MONTANA

• Montana (Great Plains Region) >>
• Hebgen Lake >>

WYOMING

• Wyoming (Great Plains Region) >>

OREGON

• Southeastern Oregon >>
• Deschutes River Basin >>

WASHINGTON

• Yakima River Basin >>

How much is an Acre Foot of water?

• 1.0 acre foot = 325,851 gallons
• Water is commonly measured in acre-feet. One acre-foot of water can fill one acre of land, approximately the size of a football field, 1 foot deep. An acre-foot of water can supply the annual indoor and outdoor needs of one to two urban households.
• Palisades Reservoir can hold 1.2 million acre feet of water. That means when Palisades is full, at any one time, could supply roughly 2.4 million households for an entire year!

SNOTEL: Daily Snow Reports