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US Heat Dome Shifts West, Intensifying Southwest Heat Wave
31 Jul
Summary
- Over 42 million people are under heat alerts across the southern US.
- Temperatures in some cities have surpassed 100 degrees Fahrenheit.
- A heat dome has moved west, intensifying heat in the Southwest.
Extreme heat continues to impact millions of Americans, with over 42 million people currently under heat alerts across the southern United States. Temperatures in numerous cities have soared above 100 degrees Fahrenheit, signaling a severe weather event. A notable high of 119 degrees Fahrenheit was recorded near Tecopa, California.
The "heat dome" phenomenon, which previously brought intense heat to central and eastern regions, has migrated westward. This shift is intensifying a significant heat wave across the Southwest. Very high temperatures are anticipated to persist across the southern U.S. through Saturday.
Over the weekend, this dangerous heat is projected to expand into the Intermountain West and the northern High Plains. Extreme heat warnings are particularly active in Arizona, California, Nevada, and southern Utah, with dangerous conditions expected to last through the weekend. Heat advisories are also in place for parts of the lower Mississippi Valley, southern Plains, and South Florida.
