For decades, the thousands of blooming cherry blossom trees in the nation’s capital have served as both a magnet to visitors and the unofficial start of the tourist season for Washington, D.C. This year,

Peak bloom prediction dates for D.C.'s cherry blossoms will be announced on Thursday. Nearly 1 in 5 people who experience a suspected mini stroke will have a full-blown stroke within 90 days. Here are the symptoms to keep an eye on.

Peak bloom is declared by the agency when 70 percent of the blossoms around the Tidal Basin — the reservoir on the National Mall — have opened.