Record Heat Wave 2026: Prep Checklist for 200+ Broken Highs Over 200 record high temperatures are forecast this week across California, the Southwest, the central Plains, and the Mississippi Valley. The National Weather Service is tracking what could be one of the most widespread heat events of the year, and if you’re in the path, you need a plan before temps start breaking triple digits. Heat wave prep isn’t about buying expensive gear. It’s about water, power, and knowing whe