Posted June 27, 2018 9:29 p.m. EDT
Rain is expected to soak northern New England on Thursday, while thunderstorms occur across southern New England and much of the Mid-Atlantic. A storm will push across southern Canada and pull moisture north into the Northeast.
Drenching storms will riddle the Southeast, especially from parts of the central Plains to the middle Mississippi Valley. Steamy air will fuel the storms in the South, while the meeting of a hot air mass and a dry air mass will produce the storms over the central states. Sunshine is expected from the Great Lakes to parts of the central Appalachians.
Significant heat will prevail in the central and southern Plains. Temperatures are projected to reach or exceed 100 degrees from parts of Kansas to West Texas. Severe thunderstorms will extend from parts of Montana and Wyoming to the Dakotas and northern Minnesota. A storm is expected to push east into the hot and humid air.
Much of the rest of the West can expect dry weather and sunshine, with a hot afternoon. Along the California coast, morning low clouds will be followed by an afternoon sea breeze. Showers may reach western Washington later in the day.
Focus: Severe Weather Risk on Thursday
Severe weather will threaten the northern Plains on Thursday afternoon and evening, while a separate storm system targets the middle Mississippi Valley. The strongest thunderstorms may produce damaging winds, large hail, flooding downpours and isolated tornadoes.