Sf Tolt River below Regulating Basin near Carnation
Sf Tolt River · Pacific NW · USGS gage 12148300
Coldwater (summer mean 12.4°C — prime coldwater).
Water
n/a
Flow
n/a
Air
56°F
Sky
100%
Pressure
30.05 in
Wind
4 mph
Predicted hatches · 2026-09-15
No bugs scoring above the noise floor right now.
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.