Thunderstorms will likely develop through the rest of day Friday, before drier weather moves back in Saturday.

An upper level trough of low pressure will continue to move into the Northstate today.  The cold air aloft will help to drop snow levels and help to destabilize the atmosphere.  

The convergence line that brought thunderstorms to Shingletown early this morning continues to slowly dive south down the foothills.  As of 12:00 pm this convergence line has developed thunderstorms at the Butte, Tehama and Glenn County intersection.  These thunderstorms can drop heavy rain and hail.  

As the we head into the warmest part of the day the atmosphere will continue to destabilize throughout the entire Northstate.  This will lead to increased coverage and activity.

After we lose daytime heating tonight and into the overnight hours and the trough pushes east, activity should quickly come to an end.

Saturday looks dry, with highs in the mid to upper 60s for the valley floor.

A weak cold front will bring another shot of rain to the Northstate Sunday morning and afternoon.  Behind this front a ridge of high pressure will quickly amplify and move over top of the Northstate.  Expect highs as warm as the mid to upper 80s by next Tuesday-Thursday.