Henry’s Fork, February 3rd, 2024
The river below Ashton Dam is offering some excellent midge hatches during days without storms. Choose mid days of relatively warm ( air temps near or higher than 40 Deg. F.), wind-free and overcast days which offer the best hatches. Flow is near normal (1170 cfs) making wading not difficult while access is good. Any pattern simulating a midge cluster is sure to bring interest from resident trout.
Headlines from Dr. Rob Van Kirk’s Henry’s Fork Drainage Snow-Water Equivalent Report of “Ground Hog’s Day.”
- Maximum temperature yesterday set a record high for the date for the fourth consecutive day.
- Only very light precipitation was recorded, leaving water-year precipitation at 84% of average and SWE at 66% of average.
- Moderate to heavy precipitation is expected today through the end of next week.
- At an average outflow of 398 cfs, Island Park Reservoir dropped by 15 ac-ft yesterday and is 90% full, compared with 75% full on average.
- The upper Snake River reservoir system is 75% full, compared with 61% full on average.
Details
Yesterday’s watershed-averaged maximum temperature set a record high for the date for the fourth consecutive day. Very light precipitation was recorded, leaving the water-year total at 84% of average and snow water equivalent (SWE) at 66% of average. Current SWE is still third lowest for the date, ahead of 2001 and 1994.
Rob Van Kirk, Ph.D.
Senior Scientist
P.O. Box 550
Ashton, ID 83420
208-881-3407 CELL