Millions across the central and eastern United States are bracing for a one-two punch of severe thunderstorms and dangerous heat, with AccuWeather meteorologists warning of widespread disruptions through the end of the week.
Storm threat expands from Midwest to Northeast
A powerful weather pattern is bringing severe thunderstorms from the central Plains and Great Lakes to the Northeast and mid-Atlantic through Thursday. Areas from Michigan to Pennsylvania and West Virginia face the highest risk for flash flooding and damaging winds.
- Cities at moderate risk include Dayton, Toledo, Indianapolis, and Evansville.
- Fast-moving storms could trigger rain-wrapped tornadoes, particularly across Illinois, Indiana, and Ohio.
Meteorologists caution that saturated ground from earlier storms could exacerbate flooding risks, especially in areas like northern West Virginia, where flash floods have already proven deadly.
Dangerous flooding in West Virginia
Flash flooding remains a significant concern in West Virginia, where steep terrain accelerates runoff. Last weekend, Wheeling Creek rose nearly 7 feet in two hours, and 96 flash flood warnings have already been issued in the state this month—tying the second-highest June total on record.
“The front is not budging,” said AccuWeather Senior Meteorologist Chad Merrill. “It will continue to fuel storm development and potential flooding through the week.”
Heat wave to follow severe weather
As storms push east, a massive heat dome is set to build across the central U.S., expanding into the Northeast early next week. Temperatures will soar 10–20 degrees above normal, with RealFeel® Temperatures climbing past 100°F.
- Denver will see its first 100-degree days of the year.
- Detroit could experience a seven-day stretch of 90°F+ temperatures.
- New York City is likely to see five consecutive days above 90°F starting Monday.
High humidity will make conditions feel even more oppressive, particularly in regions with moist ground from recent rains. This will strain power grids and increase the risk of heat-related illnesses.
Heat wave impact and safety tips
AccuWeather meteorologists urge residents to prepare for extreme heat:
- Stay indoors during peak afternoon hours.
- Stay hydrated and avoid strenuous activity outdoors.
- Check on older adults, children, and pets frequently.
- Avoid walking pets on hot pavement during the day.
“Heat is the deadliest weather hazard in the U.S.,” said Meteorologist Alex Duffus. “Taking precautions now can prevent emergencies later.”
What’s next?
The severe weather threat will ease by the weekend, but the heat wave is expected to persist into next week across much of the Northeast.
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