A slight chance of rain regionwide late monday into tuesday as another system approaches from the north. A warming trend is then expected late in the forecast period as a result of building high pressure. No major hot spots. Bay bridge wb 80 is less then 30 min from the maze to sf. San mateo bridge less then 30 min from 880 to 101. james breaking news this morning. Two more car fires are reported in the east bay overnight. Bringing the total to seven car fires this week. This comes as investigators say they believe its the work of a serial arsonist. Kron fours Hermela Aregawi has the details. The fire marshall tells me there have been more than 10 vehicles set on fire between those this week. And dating back to 2016. The fires have some things in common leading them to believe the same person or people are responsible for all of them. A serial car arsonist is still on the loose in Contra Costa County. Five cars have been set on fire this week alone. And Police Believe the same suspect