The Plains finally catch a break from the stormy conditions as the focus of showers and thunderstorms shift towards the eastern U.S. Meanwhile, the season's first potent heat wave settles in across the West with temperatures soaring above 105 degrees in several large metro areas.

The WeatherRadar Wednesday morning showers and thunderstorms moving east along and ahead of a cold front. Storm activity is likely across much of the country east of the Mississippi River and reaching the Eastern Seaboard by the afternoon. A few storms may intensify, posing a risk of damaging winds. However, the primary concentration of these stronger storms is expected across the Eastern Great Lakes and Ohio River Valley.

After the cold front passage noticeably cooler temperatures will make their way into the eastern U.S. Temperatures will range anywhere from 10 to even 20 degrees below average. Some spots of the Upper Midwest could even see overnight lows dip back into the 40s.

Across the West, the season's first potent heat wave will firmly take a stand. High temperatures exceeding 100 degrees are expected in California’s Central Valley and the Desert Southwest. Widespread temperature records may be broken, with temperatures running 20-30 degrees above average. Excessive Heat Warnings and Watches are in effect for these regions.

The Atlantic Hurricane Season officially began on Saturday, June 1st. In the East Pacific, the season started on May 15th. Currently, no development is expected in either basin.

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