Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for Jul 23, 2021

graph

Forecasted Steelhead Snake R Wild Query Parameters
Year2021
ProjectJohn Day
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateJul 23, 2021
Total Run Period (Mar 22 - Jul 22)
Temperature Exposure Index14.69 C
Percent of Fish Exposed43.9 %
Number of Days Fish Exposed34
Middle 80% of Run Period (May 15 - Jun 12)
Temperature Exposure Index14.72 C
Percent of Fish Exposed43.2 %
Number of Days Fish Exposed12
Middle 50% of Run Period (May 22 - Jun 6)
Temperature Exposure Index14.71 C
Percent of Fish Exposed37.3 %
Number of Days Fish Exposed6
Run Dates
First Day of RunMar 22
5% of Run passedMay 10
10% of Run passedMay 15
50% of Run passedMay 30
90% of Run passedJun 12
95% of Run passedJun 15
Last Day of RunJul 22
Date(s) When Temperature Crosses 15 C
Jun 1

1. Total Run Analyzed [99.958] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.