A cold front will swing into the Northsate by this evening, bringing chances of showers and cooler weather for the rest of the work week.
Out ahead of the cold front the south winds will begin to pick up this afternoon and evening. High-res models are showing sustained winds above 20 mph by 5:00 pm today.
The cold front will move ashore and rain will work through the Northstate west to east late tonight and into the overnight hours.
Behind the cold front, colder air will spill in, dropping snow levels and bringing unstable air aloft in. Right now it appears the cold core aloft will be on top of the Northstate in the early morning hours Tuesday and begin to exit east by the afternoon. This may lead to less thunderstorm activity since the coldest air aloft will be to the east by the time we reach the warmest part of the day.
A weak, flattened ridge will build into the Northstate Wednesday and the first half of Thursday. This will be short lived as another deep trough will dive into the Northstate Thursday night into Friday. This will also bring rain, lowering snow and the threat of thunderstorms to the valley Friday afternoon.
Models are now trending towards an amplified ridge of high pressure building in by Sunday and next Monday. This should put an end to any unsettled weather over the Northstate.