Moderate Heat Risk and Rapid Onset Drought Expected in Southern U.S.
• The Climate Prediction Center has issued a hazards outlook for the period of September 3-9, 2026, highlighting a moderate risk of extreme heat across parts of the Southern and Central Plains, Lower and Middle Mississippi Valley, and portions of the Tennessee and Ohio Valleys. A slight risk of extreme heat extends across much of the southeastern U.S. Additionally, a slight risk of heavy precipitation is forecast for southern Arizona and New Mexico from September 5-
• The outlook also notes a slight risk of much below normal temperatures in the Northern Rockies and Great Basin from September 3-
Impact & Risks
The extreme heat poses significant risks to vulnerable populations, particularly in areas where temperatures may exceed 95-100°F (35-38°C) with heat indices reaching 110°F (43°C). The drought conditions could exacerbate agricultural stress and increase wildfire risks in affected regions. Meanwhile, heavy precipitation in the Desert Southwest may lead to localized flooding. Cooler temperatures in the Northern Rockies could result in early frost or freeze events, potentially impacting agriculture and outdoor activities.
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