41.   The boundary with tropical air over the Gulf of Mexico will be activated by a jet stream disturbance moving east from New Mexico.

42.   The boundary with tropical air will be active with clouds and showers from southern Georgia to the southern Appalachians.

43.   The boundary between tropical air along the Gulf Coast and a hot and slightly drier air mass over the central Plains will be the focus for thunderstorms Thursday afternoon.

44.   The front separated cool, moist air over North Korea from tropical air over the South.

45.   The leading edge of tropical air will reside from South Carolina to Texas.

46.   The heaviest storms will likely develop in southern Minnesota, southern Wisconsin and northern Illionois, where tropical air is forced to rise over a stationary front.

47.   The persistent flow of tropical Pacific air into the West Coast will ease Friday, allowing the heavy precipitation to taper to showers.

48.   The rain began late Tuesday as tropical air ahead of the hurricane surged into the Carolinas.

49.   The smell of oil flavors the syrupy tropical air.

50.   The tropical air will encounter a stubborn cool air mass across the northern third of the nation.