Heat Wave #5 became official just in time for it to end on Friday. It was a category zero heat wave. The high temperature reached 104°, hot- but missing the record by 5 degrees. And now a cooling trend will develop. Low pressure over the eastern Pacific is pushing into the west and will spell moderation for California on Saturday and noticeably cooler weather for Sunday. The cold front itself will come through Kern County late Saturday afternoon, but a slowly cooler atmosphere will keep us below 100 degrees even before the front blows through.
I am expecting fairly windy conditions in the mountains and desert areas for late Saturday into early Sunday as the new weather regime arrives. High on Saturday will be in the mid 90s, but Sunday will struggle to reach 90°. Mountain towns will be limited to the upper 70s for Sunday. Although I don't believe we have seen our last triple digit high with today's heat, I do think this has been our final heat wave. And so I will now issue my "no more heat waves" forecast for the 2015 season. Next up will be the no more 100s, and no more 90s forecast which will likely come in September or beyond.
A windy scenario Saturday afternoon and evening could kick up some dust in the central valley, as well has reaching Wind Advisory criteria in the mountains and desert. As is often the case, the first significant cold front of the season likely involves wind and some blowing dust. No rain is expected with the weekend cold front, although the first rains of the autumn season will fall in far northern California. A low pressure area will push through the first impulse this weekend with slight warming for Monday and Tuesday. Then the next push will come into the state by Wednesday and Thursday.
My forecast for the following Labor Day holiday weekend is for mostly sunny skies and south valley temperatures close to 90° in the afternoons. Lows will be in the 60s. Quite nice!
8-29-15 7:10 pm Chief Meteorologist MILES MUZIO