An extensive, long-duration sequence of severe weather is set to unleash storms across parts of the central and eastern United States over the next week. Storms begin Wednesday over Nebraska and the Dakotas and will shift to the Midwest and Ohio Valley on Thursday.

Oklahoma could be in for a wet and wild week of severe weather, with the main tornado threat to the Oklahoma City area on Monday evening.

A more active severe weather pattern is getting underway in the Midwest and Plains that could produce large hail, wind damage and a tornado threat into early next week.