21.   At the leading edge of the advancing cool air, isolated severe thunderstorms will erupt from southern Idaho to eastern Montana.

22.   Before dawn on Sunday, strong thunderstorms erupted in Minnesota.

23.   A few potent thunderstorms will erupt in the lingering warmth and humidity from New York to North Carolina in the afternoon and evening.

24.   A few powerful thunderstorms will erupt across west Texas, eastern New Mexico and southeast Colorado as a slow-moving disturbance approaches from the west.

25.   A few thunderstorms may erupt in east Texas and southwest Arkansas.

26.   A few thunderstorms will erupt in the Sierra and over the central Rockies.

27.   A cool rain will fall in northern New England while afternoon thunderstorms erupt on the warm side of the front from the northern Ohio Valley to the interior Northeast.

28.   A cool front moving through Ontario will cause scattered thunderstorms to erupt in Michigan on Friday afternoon.

29.   A few afternoon thunderstorms will erupt in the sultry air from northern Texas to northern Missouri.

30.   A jet stream disturbance will cause scattered strong thunderstorms to erupt from northern Florida to the eastern Carolinas.