Scattered severe thunderstorms and locally heavy rain possible acrossthe Northeast, Mid-Atlantic, and parts of the Central Plains through thisevening......Severe weather and flash flood risks shift to the Northern Plains andUpper Midwest this weekend......Above average summer heat continues across much of the Southern Tierbefore expanding into the Midwest by Sunday...A summer weather pattern ripe for mid-June is expected through thisweekend across CONUS, with scattered areas at risk for stron...