The National Weather Service is warning of an unprecedented early-season heat dome that could push temperatures above 120°F across the American Southwest in late April, weeks ahead of typical extreme heat patterns.

Forecast Details

Health Warnings

Heat kills more Americans than all other weather events combined. Stay hydrated, never leave children or pets in vehicles, check on elderly neighbors, and seek cooling centers if you lack air conditioning. Hospitals are pre-staging additional capacity for heat-related emergencies.