Severe Thunderstorm Risks and Heat Wave Impact Midwest and Western U.S.
The National Weather Service (NWS) has issued a slight severe thunderstorm risk for southern Iowa and the Upper Great Lakes, with isolated storms capable of producing large hail and damaging winds. A broader marginal risk extends across southern South Dakota, northern Nebraska, the Ozark Plateau, the Ohio Valley, and the Mid-Atlantic. Meanwhile, a strong ridge of high pressure is building across the Desert Southwest and Intermountain West, bringing dangerous heat with temperatures 7–12°F (4–7°C) above normal, potentially exceeding 110°F (43°C) in some areas. Monsoon storms in the West may lead to isolated flash flooding. Source time: not specified. 
