From road closures and top runners to race day events and where to watch, here are 10 essential things to know before race day.

Follow the storms with interactive radar and see the latest traffic conditions.

Several roads across Los Angeles will be closed for the 40th LA Marathon, impacting traffic for many residents.

Drivers in Los Angeles should be prepared for a large number of road closures related to the 40th running of the Los Angeles Marathon presented by ASICS on Sunday, March 17. The 26.2-mile ...

A strong storm is dropping significant rain across Southern California, triggering the risk of mudslides, flooding and debris ...

Environmentalists and residents fear that redevelopment, if not constructed with environmental remediation as a priority, may pose serious risks to human health.Some city officials see rapid ...

The goal is to upgrade the massive system that sends water to 27 million people, mostly in Southern California, and vast ...

An overnight winter storm brought 1-2 feet in certain regions of the Tahoe basin, impacting schools and roads. Schools within ...

Here is where you can check live feeds that show conditions in the Sierra as rain or snow falls. Below is a view from South Lake Tahoe Airport. See other snow cameras at Sierra resorts and from across ...