51.   Isolated, heavy thunderstorms are possible across the Middle Atlantic seaboard.

52.   Isolated, potent thunderstorms are possible from southwest Kansas to northwest Texas.

53.   Isolated thunderstorms are also possible across the high deserts of southeast California.

54.   Isolated thunderstorms are due over eastern Wyoming and western Nebraska.

55.   Isolated thunderstorms are possible late Thursday over interior Washington and Oregon.

56.   It has been hot and humid across the southern Plains, but thunderstorms have been few.

57.   Isolated thunderstorms are also possible in extreme south Texas in response to a sea breeze.

58.   Isolated thunderstorms are possible in the interior Northwest ahead of an approaching cold front.

59.   It will be mostly sunny from the West Coast through the Deep South, except for Florida, where there will be a few thunderstorms.