Columbia Basin Performance Measures

Forecasted Adult Passage Exposure Results for May 1, 2024

graph

All Adult Chinook mouth to Snake River Query Parameters
Year2024
ProjectJohn Day
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateMay 1, 2024
Total Run Period (Mar 18 - Jun 19)
Temperature Exposure Index13.15 C
Percent of Fish Exposed19.9 %
Number of Days Fish Exposed20
Middle 80% of Run Period (Apr 26 - Jun 10)
Temperature Exposure Index13.11 C
Percent of Fish Exposed13.3 %
Number of Days Fish Exposed11
Middle 50% of Run Period (May 1 - May 25)
Temperature Exposure Index12.83 C
Percent of Fish Exposed0 %
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 18
5% of Run passedApr 23
10% of Run passedApr 26
50% of Run passedMay 9
90% of Run passedJun 10
95% of Run passedJun 14
Last Day of RunJun 19
Date(s) When Temperature Crosses 15 C
May 31

1. Total Run Analyzed [99.952] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.