 By morning, these will just be showers, maybe a rumble of thunder, but it's not heavy storms and it's not heavy rain. But the rain will continue building to the east. Now, we are expecting a round or two of intense thunderstorms out in the western Dakotas tomorrow afternoon, tomorrow evening. This could likely produce some severe weather out west. Strong winds and hail look likely with the strongest cells. Depending on how they develop, a tornado or two would be possible in western and central North Dakota.