As Southern California’s worst heat wave of the year intensifies and expands across the region Thursday, officials warn the next few days could bring record-breaking high — and low — temperatures.

The season’s most dangerous heat wave so far is expected to hit Southern California this week. Extreme heat and fire weather advisories have been issued beginning Wednesday, set to last for several ...

Natalie Pate / OPB Oregon and Southwest Washington are heading into a stretch of dangerous summer heat, with forecasters warning of triple-digit temperatures and increased health risks beginning this ...

Southern California continued baking under a heat wave Monday that’s expected to last a few more days, but forecasters are also warning that thunderstorms, some flash flooding and high winds could be ...

With a midsummer heat wave sending temperatures soaring in Southern California, cooling centers have been opened across the region to help people -- especially the most vulnerable -- beat the heat. In ...

For the first time, scientists have quantified the causal links between worsening heat waves and global warming pollution from individual fossil fuel and cement companies, pushing the boundaries of ...