Can’t Take the Heat? Stay Out of the West

LOS ANGELES — The heat smothering the western United States has become so extreme that the National Weather Service warned Tuesday of a major potential for heat-related illnesses “and even death.”

Sidewalks and roadways buckled in Northern California, the water was too hot for horses to drink in Southern California and more than 40 flights were canceled in Phoenix as temperatures approached 120 degrees in parts of Arizona, California and Nevada.

Excessive heat warnings and advisories stretched the length of California, across all of Arizona, north into Utah and Nevada and east into New Mexico on Tuesday.

“We are talking really hot temperatures,” said Domenica Davis, a meteorologist for The Weather Channel. “This is actually the peak of the heat that we’re seeing in the desert Southwest, where we’re talking all-time record highs that can be broken.”

Related: Don’t Fry: 3 Stages of Heat Stroke You Need to Know

Extreme temperatures in the Sacramento, California, area, where the high was expected to reach 106 on Tuesday and 108 on Wednesday, expanded moisture in the soil after an unusually wet winter, causing sidewalks and parts of U.S. Route 50 to break apart and sink.

The state Transportation Department said it had responded three times since Sunday to repair cracked pavement on Route 50, shutting down parts of the heavily traveled road for several hours at least twice.

Image: Work crew in Phoenix

A work crew building the Loop 202 South Mountain Freeway in Phoenix takes a break to keep hydrated as temperatures climbed to near 120 degrees on Tuesday.