Eb Clarion River At Eb Clarion River Dam
Eb Clarion River · Northeast · USGS gage 03027500
Coldwater (summer mean 14.9°C — prime coldwater).
Water
55°F
Flow
116 cfs
Air
55°F
Sky
2%
Predicted hatches · 2026-06-16
PredictedSalmonflyPteronarcys californica1.00
Predicted by conditions; no reports yet. water 13.0°C (55°F) sits in the prime band (13-16°C); peak season; 8 days sustained ≥12°C; watch late morning through evening.
flies: Rogue Foam Salmonfly #4-6, Chubby Chernobyl, Pat's Rubber Legs
PredictedGreen DrakeDrunella spp.1.00
Predicted by conditions; no reports yet. water 13.0°C (55°F) sits in the prime band (11-15°C); peak season; 8 days sustained ≥10°C; watch midday, often cloudy.
flies: Green Drake Parachute #10-12, Cripple, Hares Ear #10
PredictedPale Morning DunEphemerella spp.0.50
Predicted by conditions; no reports yet. water 13.0°C (55°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
PredictedEastern Green DrakeEphemera guttulata0.50
Predicted by conditions; no reports yet. water 13.0°C (55°F) is warming toward the prime band (14-18°C); peak season; 8 days sustained ≥12°C; watch evening; the spinner (Coffin Fly) falls at dusk.
flies: Green Drake #8-10, Coffin Fly Spinner, Drake Emerger
PredictedSpotted / Summer CaddisHydropsyche spp.0.25
water 13.0°C (55°F) is warming toward the prime band (14-19°C); shoulder of the season; 8 days sustained ≥12°C; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis
PredictedMidgeChironomidae0.25
water 13.0°C (55°F) is cooling past 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
PredictedMarch Brown (Eastern)Maccaffertium vicarium0.25
water 13.0°C (55°F) is warming toward the prime band (14-18°C); shoulder of the season; 8 days sustained ≥12°C; watch sporadic through the day, midday into afternoon.
flies: March Brown #10-12, Hare's Ear, Spinner
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.