US Short Term Forecast to Jul 22

...Heavy rains with localized flash flooding possible along the Central / Eastern Gulf Coast...

...Surge in temperatures expected from the Central Plains to the Upper Midwest...

Wet and stormy conditions will continue across the Southeast and up into the Central Appalachians this weekend...beneath an upper trough lingering over the Eastern U.S..

Although much of the activity will be scattered in nature...a wavy frontal boundary stretched through the deep south should help focus showers and thunderstorms along the Central/Eastern Gulf Coast... and deep moisture feeding into the storms could pose a risk for heavy rains and isolated areas of flash flooding.

Farther north...a weak surface wave lifting up the Atlantic coastline Saturday night into Sunday could clip New England with rain...but any heavy precipitation will remain offshore.

After a mid-summer cool down...a surge in temperatures and dew points are expected from the Central Plains to the Upper Midwest as an upper ridge quickly expands over the south central U.S.. North of the building ridge...a cold front dropping down from Canada should help ignite showers and thunderstorms while it presses through northern Minnesota and the Upper Great Lakes Sunday and Monday.

An increase in moisture...combined with weak impulses aloft...will help trigger scattered convection from central California to the Central Rockies Sunday afternoon.

On Monday...the best chance for showers and thunderstorms will shift farther north...impacting locations from northwest Nevada into northwest Wyoming and southwest Montana.

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