Action should really brake loose anytime. This lake is known for its' excellent fishing at ice-out. Bring plenty of warm clothing. Float tube or pram best. McCumber Lake Slightly off color, high 40 F's.
Fishing is fair.
Use floating or slow sinking lines with dark streamers or damsel fly nymphs. Some callibaetis are starting to show in the afternoon. Good areas to fish are near the dam, and in the flats near the creek mouth. This lake is located west of Manzanita Lake about 20 miles. Putah Creek Moderately high, off color, low 50 F's.