51.   Intermittent light snow will occur over the central Rockies.

52.   Isolated afternoon thunderstorms will also occur over the mountains of the interior West.

53.   Isolated showers will also occur over interior New England as a jet stream disturbance passes overhead.

54.   It is extremely difficult to prove or disprove changes that occurred over evolutionary time.

55.   It asked companies whether they produced houseboats that vented generator exhaust to the rear, where a spate of deaths and injuries have occurred over the past decade.

56.   Johnson noted that while the rail industry should always strive for better conditions, significant progress has occurred over the course of the century.

57.   Layoffs will occur over the next few months and will be completed during the fourth quarter, she said.

58.   Local accumulations of a few inches of snow will occur over the Texas and Oklahoma panhandles.

59.   Local flooding may occur over the eastern Ohio Valley, where steady high-level winds from the west direct thunderstorms repeatedly over the same places.

60.   Locally heavy snow will occur over the mountains of southern Colorado and northern New Mexico where moisture-laden winds ascend the sloping terrain.