I do not worry that much about the weather here or the Sierra for that matter. What is, is. It is how you deal with it. If the forecast says chance of thunderstorms after 11 AM...then you better make plans to be near Trail Camp going east before that time.
1. The Weather...It notoriously difficult to predict in the Sierra.
2. If it rains...If it rains, so what! You have the gear. If there is a lightning component...that is another story entirely...see the opening paragraph. The weather coming in on the MMWT, as you know from your last trip, cannot be viewed until your reach Trail Crest. This is the place you make a decision or catch summit fever.
3. Plan B...There are no Plan Bs in the Sierra only Plan As. There is a lot of information available on line...figure out what sounds appealing to you and yours. Getting a walk-in permit for the MMWT should not be all that hard. Any trip that includes Bishop Pass, Big Pine Lakes or the Pioneer Basin and the Mono Recesses is always good.
