Fir Creek Near Brightwood
Fir Creek · Pacific NW · USGS gage 14138870
Coldwater (summer mean 12.2°C — prime coldwater).
Water
41°F
Flow
5 cfs
Air
41°F
Sky
64%
Pressure
30.11 in
Wind
7 mph
Predicted hatches · 2026-11-02
PredictedMidgeChironomidae0.50
Predicted by conditions; no reports yet. water 5.2°C (41°F) sits in the prime band (1-10°C); shoulder of the season; 8 days sustained ≥0°C; watch midday, especially cold months.
flies: Zebra Midge #18-22, Griffith's Gnat, Disco Midge
PredictedBlue-Winged OliveBaetis spp.0.34
water 5.2°C (41°F) is warming toward the prime band (6-11°C); shoulder of the season; 8 days sustained ≥4°C; overcast skies favor it; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.