A large swath of what had long been private land on Northern California’s Lost Coast is now slated for public access. The ...

An air quality alert was issued on Sunday at 10:33 a.m. in effect until Tuesday at midnight. The alert is for Calabasas and ...

South Coast AQMD—the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties—covers an area of 10,743 square miles that is ...

Researchers at the University of Southern California have released an interactive map to show Angelenos how pollution from ...

The largest fires started on January 7 and devastated swathes of L.A., including Pacific Palisades and Altadena. The fires ...

Most of the country experienced dry weather except for West and Gulf coasts, according to the U.S. Drought Monitor.

Heavy rain and heavy snow are expected to affect Northern California this weekend as an atmospheric river arrives.

Residents in the Pasadena and Altadena areas have been preparing for the risk of mudslides ahead of the rain. Brittany Hope reports for the NBC4 News at 6 a.m. on Jan. 27, 2025.

This all contributes to rising home insurance premiums. From 2020 to 2023, those costs have increased by 33%, rising from ...

We don’t need the storm necessarily to produce a high total amount of rainfall,” said Nina Oakley, a geohazards climatologist ...

If this late-week atmospheric river pattern shifts south, Sacramento's rain totals will increase. The same rule applies to snow chances around Lake Tahoe. If the northward trend continues, many of ...