Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Dangerous Heat Through This Evening

Heat Index Forecast Through This Evening

Thunderstorm Potential This Afternoon/Evening

Heat Safety Tips

The heat and oppressive humidity continues this afternoon and evening with peak heat indices between 105-115 degrees expected or occurring! An Extreme Heat Warning is in effect area-wide through 10 PM tonight. Make sure to limit your time outside today and stay hydrated!

Here is the latest hourly heat index forecast through midnight tonight (7/27).

Isolated to scattered thunderstorms remain possible this afternoon into the early evening. Confidence has increased slightly on the coverage of storms (20-50%) across northwest Illinois, southeast Iowa, and northeast Missouri. If storms develop, they could quickly turn severe with damaging winds as the primary threat.

With humid conditions once again in the forecast, please remember to practice heat safety tomorrow and Monday! If outside, drink plenty of water and take frequent breaks in the shade.

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Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

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