By Miriam Raftery
November 18, 2019 (San Diego’s East County) -- The first winter storm will impact southern California Tuesday through Thursday, says Alex Tardy with the National Weather Service.
A cold upper level storm will interact with tropical moisture on Tuesday bringing precipitation. The cold air from this northern stream storm will arrive early Wednesday and allow snow to develop in the mountains.
There is a good chance of thunderstorms Tuesday evening with the tropical moisture and also with the cold upper low moving into the region on Wednesday.
Showers will linger Wednesday night into Thursday as the storm shifts to the east.