Watch water temps at Hosmer this week. The Lower lake will surely warm to near or above 70f. The Upper lake will be cooler and likely safe to keep fishing. Callibaetis and Damsels are primary hatches. Look for Traveling Sedges possibly in the afternoon, but likely in the evening to dusk and Caenis Mayfly(#22 trico is the match with 6x or 7x needed to fool the fish) in the evening just as darkness comes to the lake. Definitely need both Damsel Adult and nymphs now.