81.   The circulation around this fair weather system will draw milder air toward the Northeast.

82.   The clockwise circulation around the fair weather system will cause offshore winds which will direct warm, dry air into southern California.

83.   The current weather system is said to be moving slowly, which would produce greater coverage and heavier amounts of rain.

84.   The drought is being traced to La Nina, a weather system that operates the opposite of its better-known counterpart, El Nino.

85.   The easy explanation is El Nino, a perverse weather system that has flooded some regions but left others bone dry.

86.   The El Nino weather system -- expected to cause the most severe climate changes this century -- has already resulted in droughts, fires, flooding and hurricanes.

87.   The fire packed so much power it could move against the wind and kicked up such a high plume it created its own miniature weather system.

88.   The fronts will be accompanied by some clouds and a few showers, but the rapid motion of weather systems will prevent substantial precipitation.

89.   The jet stream, a ribbon of winds in the upper atmosphere that drives weather systems across the country, draws energy from the large thermal contrasts.

90.   The normal speed and spacing of weather systems bring a disturbance about once every few days.