From the benchWith 80–90% chance of thunderstorms rolling in Sunday afternoon and evening, your best window is early Sunday morning before 11 AM — get on the water at first light and work the Caddis morning hatch hard. The pre-storm barometric drop often switches big browns into aggressive feeding mode, so don't overlook a sculpin or stonefly nymph through the deeper runs. After Monday's storms clear, expect the river to bump up slightly in flow and color — give it a few hours to settle, then return for what could be an exceptional afternoon as the Green Drake hatch fires back up in clearing skies.