A highly active weather pattern is setting up across the southern and central United States this week. The biggest concern is a prolonged flooding threat from South Texas through Louisiana and into portions of the Lower Mississippi Valley, where repeated rounds of tropical downpours could produce significant flash flooding. Meanwhile, a powerful storm system will bring the risk of severe thunderstorms from the Midwest into the Great Lakes and Ohio Valley on Wednesday, with damaging winds, large hail, and a few tornadoes possible. While heat eases somewhat across the West, temperatures will remain above average in parts of the Pacific Northwest and California before additional cooling arrives later this week.
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The weather pattern across the United States and Canada remains highly active this week, with two major stories dominating the forecast. Dangerous, long-lasting heat continues across much of the South before expanding into the western United States by the weekend. At the same time, repeated rounds of thunderstorms will bring the threat of flash flooding and severe weather from the Mid-Atlantic and Northeast to parts of the Midwest and Gulf Coast. Residents across these regions should stay weather-aware as heavy rain, damaging winds, and dangerous heat create multiple hazards over the coming week.