Extreme Heat Warnings Issued Across Southwest and Southern Plains
Extreme Heat Warnings have been issued across parts of the Southwest and Southern Plains, including areas from Arizona to Arkansas, due to dangerously high temperatures and heat index values. The National Weather Service (NWS) has projected temperatures ranging from 105°F to 116°F (40.6°C to 46.7°C) in regions such as Death Valley, the Colorado River Valley, and the Phoenix metropolitan area. Heat index values exceeding 110°F (43.3°C) are expected in parts of Arkansas and Oklahoma. The warnings are in effect for consecutive days, with some extending into Friday evening, particularly in the Imperial Valley. Overnight cooling is limited due to cloud cover, exacerbating the cumulative heat stress. Heat Advisories have also been issued for surrounding areas, indicating dangerous conditions that fall short of warning criteria. Source time: Wed, 09 Sep 2026 13:23:40 GMT.