Thunderstorms closed LA and OC beaches because of lightning strikes Tuesday. Reports of lightning in Riverside County ...

Scientists are just beginning to understand how extreme weather can give pathogens an upper hand, underscoring the urgent ...

The pull of the foul air to Northern California was significant enough that the Bay Area Air District issued an air quality ...

Cal’s No. 1-ranked varsity eight crew suffered a stunning upset loss in the semifinals of the IRA national rowing championships on Saturday and failed to qualif ...

With a heat wave likely to reach triple-digit temperatures expected in California this weekend, hospitals are gearing up for ...

Triple digit temperatures and elevated fire weather concerns in the North Bay start Friday, according to the National Weather ...

CalHeatScore is developed by the California Environmental Protection Agency’s Office of Environmental Health Hazard ...

Temperatures in Southern California are expected to range from eight to 16 degrees above normal, with highs in the 90s to ...

The National Weather Service has issued Extreme Heat Warnings for portions of California, Nevada and Arizona on Friday and Saturday.

Sacramento Metropolitan Fire District urged people to mow grass early in the day to reduce the risk of sparking a blaze.

As the Bay Area’s first heat wave of 2025 began to crank up the thermometer on Thursday, the Bay Area Air District responded ...