Posted June 22, 2018 10:05 p.m. EDT
A slow-moving storm is expected to produce clouds Saturday, with heavy showers and strong thunderstorms from the Great Lakes and the southwestern parts of New England to the southern Appalachians and Tennessee Valley. Flash and urban flooding is possible, with the greatest risk in areas that have received heavy rain in recent days. Some communities in the Ohio Valley, southern Appalachians and mid-Atlantic may be hit by storms with damaging winds.
Severe storms will target the southern Plains, and a weak disturbance will pass over the region.
A storm is expected to spread heavy showers and thunderstorms from northern Idaho to Wyoming, Montana and the Dakotas. Some storms may become severe over the High Plains later in the day.
Aside from the usual heavy afternoon and evening thunderstorms over the Florida Peninsula, much of the Deep South, Southwest and Pacific Coast states can expect sunny conditions Saturday. The Southeast will remain hot and humid, while the Southwest will be hot and dry. Morning low clouds are expected to give way to sun along the West Coast.
FOCUS: Plains to Face More Severe Storms
Severe thunderstorms may affect the southern Plains on Saturday afternoon. Tornadoes are possible in eastern Colorado, Kansas and Nebraska late Sunday and into Sunday night.