Freeze watch for parts of Bay Area over holiday weekend

The Bay Area could see temperatures drop below freezing this weekend. The National Weather Service issued a frost advisory that lasted through 10 a.m. Saturday, and a freeze watch from Saturday night through Sunday in parts of the north bay. 

Are you breaking the law if you warm up your car in your state?

While there is no national law against idling a vehicle, some states have anti-idling laws to prevent air pollution. The punishment and exact anti-idling measures vary from state to state, and even city or county, with penalties ranging from fines to written warnings.

Sierra region bracing for snow and flooding

As people in the Sierra dig out, another storm is already rolling in. An atmospheric river is expected to bring several more feet of snow and a lot of rain, which leads to concerns about snowmelt and flooding. 

La Nina is over and El Nino could be on the way, forecasters say

The climate phenomenon is a by-product of a years-long cycle of water temperatures in the tropical Pacific Ocean known as the El Niño-Southern Oscillation (ENSO) and has been in its cool phase for the past three winters -- a rare feat for an event that typically lasts for one winter, maybe two.