Henry’s Fork, December 2nd, 2023

Headlines From Dr. Rob Van Kirk’s Henry’s Fork Drainage Water Status Report Filed on November 30th.

• Another dry day dropped water-year precipitation to 93% of average and SWE to 49% of average, as we await a large winter storm forecast to arrive in the watershed late tonight.
• At an average outflow of 226 cfs, Island Park Reservoir gained 395 ac-ft yesterday and is 86% full, compared to 63% full on average.
• Outflow from Island Park Reservoir will be increased by roughly 165 cfs tomorrow.

Rob Van Kirk, Ph.D.

Senior Scientist

Henry’s Fork Foundation

P.O. Box 550

Ashton, ID 83420

208-881-3407 CELL

208-652-3568 FAX

[email protected]

Upper river has water cold enough to slow fishing, and access is becoming tougher each day.

For the lower river access is better but hours on blue-bird days (midge activty and nymphing) are the only time for comfortable fishing.