A brief, but high-impact storm will bring heavy rain, feet of high country Sierra Nevada snow and hazardous travel to California and neighboring states from Wednesday night to Thursday night.

Also, astronomers have spotted the largest and most distant flare ever observed from a supermassive black hole. Nicknamed “Superman,” the flare originated 10 billion light-years from Earth, and at its peak, the light emitted shone with the brightness of 10 trillion suns.

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Cold air will expand across the eastern half of the nation into early week, AccuWeather forecasters warn, ending the growing season in the South.

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A new study claims that rising temperatures around the world will make it harder for elite athletes to break the marathon world record, or for recreational runners to hit their target times. Of the 221 races analyzed in the report from Climate Central released last week, 86% of them are less likely to have optimal racing conditions for runners by 2045.

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-A major cold outbreak will grip the eastern U.S., ending the growing season in part of the South and triggering the season’s first snow and biting AccuWeather RealFeel® Temperatures in the single digits across the North.

-Following a series of storms with drenching rain and strong winds from Northern California to Washington and British Columbia much of this week, a break of dry weather, with some sunshine included, returns this weekend.

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According to the National Weather Service office in Boston, a 'gustnado' struck the southeastern part of the state Monday night. A gustnado is a  short-lived, ground-level swirl of wind that can form along a thunderstorm’s leading edge.

Also, Two hikers are safe after being rescued in snowy, freezing conditions on Mount Mansfield, the tallest mountain in Vermont.

a major shift in the weather pattern will unfold this weekend and early next week across the central and eastern US bringing a surge of cold air and the potential for the first widespread snow of the season in some areas. AccuWeather meteorologists say one storm could produce a band of accumulating snow across parts of the Midwest, followed by lake-effect snow and even a touch of snow in portions of the Appalachians farther south.

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Strong winds of 40-60 mph, with an AccuWeather Local StormMax™ of 70 mph, will accompany a fast-moving storm sweeping from the Upper Midwest to the Northeast, bringing travel delays and sporadic power outages.

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AccuWeather forecasters say warm waters and a temporary lull in disruptive winds could support tropical development in the western Caribbean during the final month of the Atlantic hurricane season.

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Waves of rain will soak locations along the West Coast this week as numerous storms pulse across the region, AccuWeather forecasters warn, with no notable end in sight through mid-November.

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Food and assistance on the way to Jamaica, Cuba, and Haiti in response to Hurricane Melissa's destructive path. AccuWeather meteorologists are monitoring the area for the possibility of another tropical storm or hurricane developing in the next two weeks.

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Gathering data from planes inside hurricanes is a dangerous game and 52 lives have been lost since operations began in 1944.

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