Water Quality 2/3

HFF BLOGS

Scroll through to read the most recent HFF Blogs and articles. Or click on the keywords at the top of the page to sort blogs and articles by topic.

AJ Mabaka

Aug 4, 2021

That’s A Wrap!

Throughout these last few weeks I have truly been amazed by how time has flown by. As I now enter my ninth week with the Henry’s Fork...

54 views

AJ Mabaka

Jul 16, 2021

AJ’s Adventures in Ashton

Wow, having just finished my fifth week with the Henry’s Fork Foundation, I can’t believe half of my time with HFF has passed by! From...

52 views

Kam Allison

Jun 17, 2021

4th Annual HFF Summer Seminar Series

Click here to view the presentations. 4:00 to 5:00 p.m. on Tuesdays from June 15 – August 10 Presentations will be held virtually via...

78 views

Official Drought Designation and First “Dry” Year Since 2016

Rob Van Kirk

Jun 16, 2021

Official Drought Designation and First “Dry” Year Since 2016

After enjoying four years of average or slightly above average water supply, plus near record trout populations, we knew a dry year would...

48 views

Bryce Oldemeyer

Jun 16, 2021

South Fork Water and Weather Outlook

Photo Credit: Michelle Bliss Photography The South Fork watershed has been blessed with average to above-average water supply the last...

18 views

South Fork Snake River Macroinvertebrate Study 2019

Bryce Oldemeyer

May 12, 2021

South Fork Snake River Macroinvertebrate Study 2019

Highlights February 2019, we began our long-term monitoring of aquatic macroinvertebrates (insects and other creatures that live in the...

70 views

Rob Van Kirk

Apr 12, 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...

5 views

What Do Macroinvertebrates (Aquatic Insects) Tell Us About the Henry's Fork?

Rob Van Kirk

Apr 8, 2021

What Do Macroinvertebrates (Aquatic Insects) Tell Us About the Henry's Fork?

Highlights Aquatic macroinvertebrates—insects and other creatures that live in the stream bottom—feed trout and are the basis of...

379 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...

3 views

Sediment Transport in 2020: What Caused the September Event?

Rob Van Kirk

Nov 13, 2020

Sediment Transport in 2020: What Caused the September Event?

Sediment export from Island Park Reservoir was 134% of average in 2020, due primarily to the highest reservoir draft since 2016. Thanks...

30 views

High Turbidity Headlines 2020 Water Quality

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...

10 views

Rob Van Kirk

Oct 13, 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...

7 views

Predicted 2020 Water Supply Near Average

Rob Van Kirk

Apr 1, 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....

5 views

Water Year 2019: 3rd Year of High Reservoir Carryover

Rob Van Kirk

Oct 10, 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...

5 views

Water Supply Above Average for 3rd Consecutive Year

Rob Van Kirk

Apr 9, 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...

2 views

35th Anniversary -- Lessons Learned Part 6: Water Quality

Jamie Powell

Mar 27, 2019

35th Anniversary -- Lessons Learned Part 6: Water Quality

The abundance and size of wild trout, as well as the abundance of organisms on which trout feed, are determined in large part by river...

16 views

Water Year 2018: Average Supply but Above-Average Reservoir Carryover

Rob Van Kirk

Oct 5, 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...

4 views

The Great Spring 2018 Sediment Flush Continues to Impact Water Quality and the Fishing Experience

Melissa Muradian

Jul 31, 2018

The Great Spring 2018 Sediment Flush Continues to Impact Water Quality and the Fishing Experience

Main message: The great spring sediment flush we observed earlier this year not only impacted fishing during Memorial Day weekend—by...

14 views

Melissa Muradian

Jul 15, 2018

Response to Island Park Flow Transfer on July 15, 2018

Prepared by Melissa Muradian and Jack McLaren What happened? Due to warm water temperatures and low dissolved oxygen in the water at the...

0 views

High Turbidity and Sediment Event During Memorial Day Weekend

Melissa Muradian

Jun 7, 2018

High Turbidity and Sediment Event During Memorial Day Weekend

The main message: Spring of 2018 brought the highest runoff event in 7 years to the upper Henry’s Fork watershed! Our network of water...

21 views

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