31.   The greatest chance for heavy rain will be near a low pressure zone in Alabama, Georgia and the Florida panhandle.

32.   The most organized area of storms will occur in the lower Mississippi Valley, as a low pressure zone ripples east along the front.

33.   The sinking air in the high pressure zone suppresses clouds, promoting desert climates from Arizona to Africa to Asia.

34.   The tranquil high pressure zones of autumn can bring about severe pollution.

35.   The winds that circulated practically unnoticed around the continental-scale low pressure zone contained enough energy to carry the spinning cork northward.

36.   Thunderstorms will surround a weak low pressure zone in the western Gulf states, and afternoon storms are expected near the Southeast coast.

37.   This year the high pressure zone has been stronger and farther north than usual.

38.   Thunderstorms will then develop along a stationary front separating the sultry air from an elongated high pressure zone to the north.

39.   Very warm air aloft near the center of the high pressure zone will discourage thundershowers over much of the Eastern states.

40.   Weather officials blamed the heat wave on a strong high pressure zone locked in over the Southwest, with a shallow marine layer unable to withstand rising temperatures.