This afternoon and tonight will be very busy in the weather department. A large swath of the Mississippi Valley, Ohio Valley and Southeast US is under an enhanced risk (level 3/5) or moderate risk (level 4/5) of severe thunderstorms. Storm threat number 1 is damaging winds, with a strong low level jet running between 75-100 MPH out ahead of our big storm in the Plains. Storm threat number 2 is tornadoes, especially south of I-40 with the best chance of stronger tornadoes along and south of I-20. These tornadoes are likely along an intense squall line currently forming over Louisiana, Arkansas and Missouri. This spreads to the east tonight, moving into Georgia, the Carolinas and the Virginias by morning with heavy rain, strong winds and frequent lightning but less of a tornado threat.