
Air temperature and water temperature should add up to 145 F. for safety.
Below 2.0 ft. — Too low, no go.
2.0 ft.— 3.0 ft. — Ideal, excellent fishing and fun.
3.0 ft.— 4.0 ft. — Fast, use caution.
4.0 ft. and up — Too high, no go.
Below 2.0 ft. — Low, numerous rocks, portage may be necessary.
2.0 ft.— 4.0 ft. — Great, class I and II rapids. Below 2.3 ft. gets rocky.
4.0 ft.— 6.0 ft. — Fast, fewer rocks, larger waves, use caution.
6.0 ft. and up — Large waves, strainers, closed to commercial traffic.