Everything reported for Imperial County and within 40 miles of it, at every level. Warnings and official records name the county they apply to, which is the level most of them are issued at.
The Weather Authority has pushed the end time of its Extreme Heat Warning for the Desert Southwest back, extending the alert beyond its original window.
KYMA reports an Extreme Heat Warning for the Desert Southwest, with high temperatures and humidity expected.
The National Weather Service has issued a heat advisory for portions of Puerto Rico, Vieques, Culebra, and the U.S. Virgin Islands, while conflicting reports describe the alert level and timing for other areas.
An Extreme Heat Warning takes effect August 17, 2026, bringing temperatures between 108 and 114 to portions of Arizona and California.
The developing heat situation affects 13 zones across coastal and lower elevation areas.