We finished the HST on Monday.
No problems, great weather, but diminished views due to smoke.
Crescent Meadows to Upper Hamilton Lake: no problems good conditions
Upper Hamilton Lake to Big Arroyo Junction: tunnel is free of snow and ice, small snowfields approaching Kaweah Gap (easy trail finding), snowfields descending into Big Arroyo (easy trail finding), Big Arroyo Crossing no problem with watershoes/boots/sure footedness, and good camping at Big Arroyo Junction near old patrol cabin.
Big Arroyo Junction to Moraine Lake: fill up on water before entering Chagoopa Plateau, no problems, great swimming and camping at Moraine Lake.
Moraine Lake to Kern Hot Springs: no problems, mosquito issues in swampy areas of KC, cold, fast water in Kern River (but refreshing), and great camping/ssoaking at KHS.
Kern Hot Springs to Crabtree Ranger Station: no problems to Junction Meadow...BUT Junction Meadow is not a meadow...it's a mosquito-infested wooded, hell-hole. Junction Meadow to Wallace Creek Crossing. Hot, dusty, windy, but nice views to west. Crossing are all OK, plenty of rock hopping opportunties to cross reasonable water flows. Wallace Creek Crossing Camp area was horrible. Mosquito infestation that could cause skeletonization in minutes. Passed on camping here, and hiked to Crabtree Ranger Station and camped next to the meadow. Some mosquito issues, but tolerable.
Crabtree Ranger Station to last tarn at ~12,000' below Mt Whitney (above Guitar Lake): No problems, nice views, great water, chilly night (36 degrees). Windy afternoon. A bit of smoke rolled in at night, but blew out by morning.
Last tarn to Whitney Portal: No problems. Minor sun-cupped, very small snowfields on way up to Whitnet Summit. Windy on the way down to Portal, but no problems at all.
One night in hiker's camp at Portal: Mosquito City (bring a mosquito net for your head if you want to enjoy time outside your tent) Great food and conversation at the Portal Store.