This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring.
High pressure is just off the west coast and will slowly strengthen over the next few days. Today the north state will be sunny and a little warmer with afternoon cumulus clouds over the mountains. Sunday and Monday temperatures will continue to warm. Afternoon cumulus clouds will continue over the mountains with the chance of isolated thunderstorms during the late afternoon and evening.
Tuesday the high pressure ridge shifts eastward. The jetstream will split as it crosses the Pacific with the weaker southern branch bringing weak low pressure troughs across Northern California and the Pacific Northwest (see map below). Temperatures will be cooling. The north state will be partly cloudy. Tuesday evening and Wednesday there will be scattered showers and thunderstorms over the higher elevations with isolated activity in the valley. Thursday there will continue to afternoon and evening thunderstorms mainly over the higher elevations.
Friday and Saturday skies will be clearing with temperatures warming back to normal.
The Old Forecaster.