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Jamie Laatsch
- May 3
How Drought Affects the Henry's Fork: A unique case among western rivers
What is the state of the drought in the Henry’s Fork Watershed? As of early April, water year precipitation sat at 79% of average (21%...
233 views
Rob Van Kirk
- May 3
Henry's Fork Water Supply: Lowest water supply since 2001 and possibly 1934
Each spring, Dr. Rob Van Kirk analyzes water supply data for the water year so far (Oct 1 - April 1) to assess the water situation and...
253 views
Jamie Laatsch
- Jan 20
HFF's Top 10 for 2021
At the end of each year, the Henry's Fork Foundation (HFF) takes a moment to reflect back on some memorable events and accomplishments...
166 views
Rob Van Kirk
- Jan 7
Water Year 2021: Average reservoir carryover with a 2016 water supply
Water year 2021 turned out to be as dry or drier than 2016 by most measures, yet Island Park Reservoir volume on September 30 was just a...
122 views
Rob Van Kirk
- Dec 1, 2021
November Water Summary and Winter Strategy at Island Park Dam
Headlines: The month of November was very warm but well short of the record. Precipitation for the month was 16% below average but is 8%...
101 views
Rob Van Kirk
- Apr 13, 2021
Summer 2021 Predictions: Another 2016?
This is the 5th consecutive year I have predicted upcoming spring and summer streamflow conditions based on April-1 data, including...
4 views
Rob Van Kirk
- Dec 30, 2020
Winter Flow Shows Increasing Trend
Winter flow at Island Park Dam is the single biggest management factor determining trout recruitment in the Henry's Fork downstream of...
0 views
Rob Van Kirk
- Nov 6, 2020
High Turbidity Headlines 2020 Water Quality
Temperatures were below average and highly variable during the spring but above average for most of August and September, reflecting air...
5 views
Rob Van Kirk
- Oct 14, 2020
Water Year 2020: 92% of Average Supply
Climate: Record-breaking cold in October, a generally dry winter, a 9th-inning rally that brought snowpack up to average just in time for...
1 view
Rob Van Kirk
- Apr 2, 2020
Predicted 2020 Water Supply Near Average
A cold, wet March brought snow water equivalent up to 97% of average, after it spent most of the winter down around 90% of average....
3 views
Rob Van Kirk
- Oct 11, 2019
Water Year 2019: 3rd Year of High Reservoir Carryover
Climate: Record-breaking February snow, springtime temperature 2 degrees below average, and heavy precipitation in September. Mean...
0 views
Rob Van Kirk
- Apr 10, 2019
Water Supply Above Average for 3rd Consecutive Year
Record precipitation in February moved snowpack from 80% of average on February 1 to 110% of average on April 1. Watershed-wide natural...
1 view
Rob Van Kirk
- Oct 6, 2018
Water Year 2018: Average Supply but Above-Average Reservoir Carryover
Water-year 2018 ended up close to average, at 102% of average precipitation and 105% of average streamflow. Upper Henry's Fork...
3 views
Rob Van Kirk
- May 9, 2018
Streamflow and Reservoir Predictions for Summer 2018
Cool, wet weather from mid-February to mid-April turned an average water supply into one that is decidedly above average. As of May 9,...
1 view
Rob Van Kirk
- Oct 6, 2017
Water Year 2017: Precipitation 138% of Average, Streamflow 109% of Average
Water year 2017 was above average in both precipitation and streamflow. Averaged over the whole watershed, precipitation was 138% of...
4 views
Rob Van Kirk
- Apr 21, 2017
Summer 2017 Streamflow Predictions: Much Better than 2016
To provide streamflow information for all river stakeholders, we have constructed a computer simulation model of the Henry’s Fork...
6 views