Severe storms are possible mostly in parts of the Plains and Midwest through the weekend and Tropical Storm Hanna moves into south TX early Saturday.
The severe weather potential will build from the Dakotas and northern NE today southeastward into the central Plains and Upper Midwest into the weekend as a trough moves through these regions followed by a cold front. Chances begin this afternoon with development in southwest SD and northwest NE, develop northward into ND this evening, and move east through the overnight with a severe threat possibly making into northwest MN by early am on Saturday. Targeted areas of severe storm development build further southeast through the weekend, from the eastern Dakotas eastward to the UP of MI Saturday, and from eastern WI southwestward to southern NE/Northern KS on Sunday.
A couple of spotty storms capable of a strong wind gust is possible later today from the TN Valley to parts of the Mid-Atlantic in the vicinity of a trough, however, these storms are expected to be short-lived.
Finally, Tropical Storm Hanna continues east towards south TX today and is expected to make landfall sometime early Saturday around the Corpus Christi area. Hanna is expected not to become a hurricane, but become a strong tropical storm with winds getting to 65-70mph. Heavy rainfall and maybe a few isolated tornadoes are anticipated in south TX with Hanna.