Welcome to the archived copies of the Lower Snake and Columbia River Hot Water Report. These weekly reports present the conditions on the Lower Snake and Columbia Rivers via graphs, analyses, and stories.The reports track the rivers as they become too hot for migrating salmon, as well as the adult return of each individual salmon species.
Below are all the available reports from 2021, 2020, 2019, 2018 and 2016.
2021
HOT WATER REPORT 2021: #5 - July 21th
HOT WATER REPORT 2021: #4 - July 14th
HOT WATER REPORT 2021: #3 - July 7th
HOT WATER REPORT 2021: #2 - June 30th
HOT WATER REPORT 2021: #1 - June 23rd
2020
HOT WATER REPORT 2020: #8 - September 2nd
HOT WATER REPORT 2020: #7 - August 26th
HOT WATER REPORT 2020: #6 - August 19th
HOT WATER REPORT 2020: #5 - August 12th
HOT WATER REPORT 2020: #4 - August 5th
HOT WATER REPORT 2020: #3 - July 29th
HOT WATER REPORT 2020: #2 - July 22nd
HOT WATER REPORT 2020: #1 - July 15th
2019
HOT WATER REPORT 2019: #9 - August 30th
HOT WATER REPORT 2019: #8 - August 26th
HOT WATER REPORT 2019: #7 - August 16th
HOT WATER REPORT 2019: #6 - August 9th
HOT WATER REPORT 2019: #5 - August 2nd
HOT WATER REPORT 2019: #4 - July 26th
HOT WATER REPORT 2019: #3 - July 19th
HOT WATER REPORT 2019: #2 - July 12th
HOT WATER REPORT 2019: #1 - July 5th
2018
HOT WATER REPORT 2018: #1 - June 28
HOT WATER REPORT 2018: #2 - July 5
HOT WATER REPORT 2018: #3 - July 13
HOT WATER REPORT 2018: #4 - July 20
HOT WATER REPORT 2018: #5 - July 27
HOT WATER REPORT 2018: #6 - August 3
HOT WATER REPORT 2018: #7 - August 10
HOT WATER REPORT 2018: #8 - August 24
HOT WATER REPORT 2018: #9 - August 31
2016
HOT WATER REPORT 2016: #4 - July 26
HOT WATER REPORT 2016: #5 - August 2
HOT WATER REPORT 2016: #6 - August 9
HOT WATER REPORT 2016: #7 - August 16