31.   Scattered strong thunderstorms will also erupt Tuesday afternoon from southern Michigan to Indiana as an approaching cold front lifts sultry air covering the region.

32.   Severe thunderstorms are possible in west Texas as moist Gulf air is further lifted by a jet stream disturbance pinwheeling east around the stalled Nevada low.

33.   Severe thunderstorms will erupt across the Midwest Tuesday as a deepening low-pressure system over the Plains vigorously lifts humid air.

34.   Showers and thunderstorms will affect much of Florida on Monday as a cold front crossing the peninsula lifts humid air.

35.   Showers are also possible near the Tennessee and upper Ohio Valleys as the front undercuts and lifts humid air over the area.

36.   Showers and a few thunderstorms will press east from central Texas as a jet stream disturbance lifts moist air from the Gulf of Mexico.

37.   Showers will be most likely just inland from the coast where developing sea breezes undercut and lift sultry air.

38.   Showers and a few thunderstorms are expected for the eastern Great Lakes on Sunday as a cool front moving east undercuts and lifts humid air from the south.

39.   Showers and thunderstorms will erupt across the lower Mississippi Valley on Tuesday as a sluggish but moderately potent jet stream disturbance lifts humid air from the Gulf of Mexico.

40.   Snow will fall in areas of Washington and northern Oregon as a disturbance lifts chilly air over the region.