I am sorry to hear the you had a bad time at MT.hood, I am going early may and they are still getting dumped on, they claim a base of 228" at the lodge and a total snowfall of 680". I hope conditions will be somewhat good got a new board I would like to try.
But to be honest your outlook for June in Cali looks about average, with your only option being Mammoth, Kirkwood is predicting a closing day of late April. So far Mammoth has received 320" and that is 104% of their normal snow for this time of the year. Time and weather will tell, Squaw in Tahoe received about 70" in April and early May.
Have you ever been to Newe Ativ/Mount Hermon in Israel? I read about it in a powder magazine, the place looks pretty big.