Arizona Watcher
A broad, persistent heat dome has settled over the western U.S., pushing daytime temperatures well above seasonal norms and trapping hot air that limits nighttime cooling.
Forecasters predict extreme readings in desert and valley locations: Las Vegas about 115–117°F, Phoenix near 116°F, El Centro around 118°F and parts of Death Valley topping 120°F.
Overnight temperatures are expected to remain elevated across the region, reducing relief between hot days and raising the cumulative risk of heat-related illness for vulnerable populations.
Dry fuels and gusty winds have led to Red Flag Warnings across parts of northern and central California, southern Oregon, eastern Washington and Idaho, with some areas tightening outdoor burning restrictions.
Heat advisories, watches and warnings span Nevada, Arizona, California, Utah, Oregon, Washington, Idaho, Montana and western Colorado; officials urge hydration, avoiding midday sun and not leaving children or pets in cars.
Meteorologists expect the heat to persist for days, increasing strain on electrical systems and cooling resources; residents near active fires are advised to know evacuation routes and follow local emergency guidance.
A powerful high-pressure heat dome is producing record and near-record temperatures across the western United States, pushing day and nighttime readings into dangerous territory. Authorities have issued widespread heat advisories and Red Flag Warnings, restricted outdoor…