Key for the CGOA variables:

1. Downwelling wind strength
2. Wind mixing intensity
3. Air temperature
4. Precipitation
5. Sea-surface temperature
6. Stratification
7. ACC transport
8. Nutrient (nitrate) concentration
9. Nutrient (nitrate) concentration
10. Spring bloom timing (incr.=later)
11. Primary production
12. Secondary (zooplankton) production
13. Juvenile salmon survival
14. Adult salmon return

Key for the CCS variables:

1. Offshore sea-level pressure anomaly
2. upwelling wind strength
3. Precipitation (Northern Calif. Curr.)
4. Precipitation (Southern Calif. Curr.)
5. Sea-surface temperature
6. CC southward transport
7. Stratification
8. Salinity (fresher North; saltier South)
9. Spring transition timing (decrease=earlier)
10. Incidence or severity of hypoxia in Northern Calif. Curr.
11. Primary Productivity
12. Zooplankton community composition (increase=more boreal)
13. Juvenile salmon survival
14. Adult salmon return in 2009-10

This figure shows the forecasts of changes in atmosphere, ocean and biological conditions in the CGOA and CCS regions of the Northeast Pacific in response to the predicted La Nina conditions of fall 2007 to summer 2008. Upward (downward) arrows indicate an increase (decrease) in the value for a particular variable, double-ended arrows indicate predictions that were not consistent among three independent expert groups. The color of the arrows indicate the level of certainty associated with specific forecasts. White arrows indicate 50-66% certainty, light blue and light red indicate moderate (>66-90%) certainty, and dark red indicates high (>90%) certainty in the prediction. There were no high certainty predictions for decreases.