Upper Darby, PA
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The 'severe clear' weather of September 11, 2001 explained as we remember the day that changed America forever
On September 11, 2001 in New York City, the sky was almost completely cloudless and a shade of deep blue — a phenomenon in aviation known as "severe clear" — indicating exceptional visibility before one of the worst tragedies in American history.
Over 33M Americans from Texas to New Jersey face renewed flood threat as 1,000-mile long severe storms rage on
A sprawling flash flood threat stretches along a 1,300-mile corridor from North Texas to southern New Jersey Thursday, with some of the heaviest rain expected across the central Appalachians and Ohio Valley — a region that has dealt with repeated flooding in recent weeks.
Severe weather shifts south, threatening the Carolinas and Georgia after week of nasty storms
Severe weather is ongoing for millions of people across parts of the Great Lakes, Ohio Valley and Mid-Atlantic, amid a multiday threat that will last into the holiday weekend.
Severe storms threaten millions across Midwest, Ohio Valley, Mid-Atlantic as 500K+ still without power
Severe weather is ongoing for millions of people across parts of the Great Lakes, Ohio Valley and Mid-Atlantic, amid a multiday threat that will last into the holiday weekend.