White River At River Street Near Auburn
White River · Pacific NW · USGS gage 12100490
Coldwater (summer mean 15.9°C — prime coldwater).
Water
58°F
Flow
212 cfs
Air
55°F
Sky
0%
Pressure
30.04 in
Wind
2 mph
Predicted hatches · 2026-08-04
PredictedSpotted / Summer CaddisHydropsyche spp.1.00
Predicted by conditions; no reports yet. water 14.5°C (58°F) sits in the prime band (14-19°C); peak season; 8 days sustained ≥12°C; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis
PredictedPale Morning DunEphemerella spp.0.50
Predicted by conditions; no reports yet. water 14.5°C (58°F) sits in the prime band (13-18°C); shoulder of the season; 8 days sustained ≥12°C; watch late morning to early afternoon.
flies: PMD Comparadun #16-18, Sparkle Dun, Pheasant Tail #16
PredictedHopper / TerrestrialsAcrididae (grasshoppers)0.17
water 14.5°C (58°F) is warming toward the prime band (17-24°C); peak season; 8 days sustained ≥14°C; watch warm, breezy afternoons.
flies: Morrish Hopper #8-12, Chubby Chernobyl, Dave's Hopper
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.