Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for May 17, 2024

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Forecasted Yearling Chinook Snake R All Spr/Sum Wild Query Parameters
Year2024
ProjectJohn Day
River ParameterTDG Percent
Critical TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateMay 17, 2024
Total Run Period (Mar 27 - Dec 18)
TDG Percent Exposure Index118.07 %
Percent of Fish Exposed18.2 %
Number of Days Fish Exposed27
Middle 80% of Run Period (May 3 - Jun 1)
TDG Percent Exposure Index117.81 %
Percent of Fish Exposed12.8 %
Number of Days Fish Exposed8
Middle 50% of Run Period (May 8 - May 22)
TDG Percent Exposure Index117.77 %
Percent of Fish Exposed6.8 %
Number of Days Fish Exposed1
Run Dates
First Day of RunMar 27
5% of Run passedApr 30
10% of Run passedMay 3
50% of Run passedMay 15
90% of Run passedJun 1
95% of Run passedJun 9
Last Day of RunDec 18
Date(s) When TDG Percent Crosses 120 %
May 16, May 17, May 26, Jun 7, Jun 9, Jun 23

1. Total Run Analyzed [99.924] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.