The Inseason Forecasts tool uses "real time" information about the current status of various Columbia Basin juvenile and adult salmon runs along with current hydrographic information to predict the future progress of the migrating fish. The Inseason Forecasts predictions are available for the following categories.
Smolt Passage (PIT Tag)
Forecasts include arrival distributions, historical timing, transport, and survival
for various Snake River yearling chinook, steelhead, subyearling chinook and
sockeye stocks at Lower Granite, Little Goose, Lower Monumental, Ice Harbor,
and McNary dams. Forecasts are based on PIT Tag detections at Lower Granite
Dam.
Current Predictions: 03 December 2020
Smolt Passage (Passage Index)
Forecasts include arrival distributions and historical timing for combined stocks
of yearling chinook, steelhead, subyearling chinook, sockeye, and coho at Rock
Island, Lower Granite, McNary, John Day, and Bonneville dams. Forecasts are based on Passage Index
data
at each dam, individually.
Current Predictions: 03 December 2020
Smolt Passage (Chelan)
Forecasts include arrival distributions and historical timing for yearling chinook, steelhead,
subyearling chinook, and sockeye at Rocky Reach Dam. Forecasts are based on Chelan PUD passage counts
at Rocky Reach Dam.
Current Predictions: 16 November 2020
Smolt ESU Passage (PIT Tag)
Forecasts include arrival distributions, historical timing, and survival for specific Snake
River and Upper Columbia River ESU stocks at McNary, John Day, The Dalles,
and Bonneville dams. Forecasts are based on selected PIT Tag detections at McNary
Dam.
Current Predictions: 03 December 2020
Adult Passage
Forecasts include
arrival distributions and total run size for spring and fall adult chinook at Bonneville Dam.
Arrival distributions are forecasted to upstream dams for four stocks: Snake River, Upper Columbia
River, Lower Columbia River, and Hanford Reach/Yakima. Forecasts are based on visual adult passage
counts at Bonneville
Dam.
Current Predictions: 21 June 2020
Water Quality
Forecasts
include water temperature and total dissolved gas percent at various dams in
the Columbia and Snake rivers. Forecasts are based on observed temperature and
total dissolved gas percent data at each location.
Current Predictions: 05 November 2020