Weather Review

• high-pressure systems are associated with dry weather, mostly clear skies, and sunshine during the day.

GOOD WEATHER

• Fronts are boundaries between air masses.

• When different air masses collide, a boundary forms

  between them called a front.

• Stormy weather is associated with these fronts.

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​What is a Front?

​A warm front forms where a warm air mass moves up and over a cold air mass. Less dense warm air rises and cools followed by clouds that can bring precipitation. Air pressure and temperature increase after the front passes.

​​Warm Front

​Forms where a cold air mass meets a warm air mass. The warm air mass is pushed upward, causing the moisture to condense into precipitation rapidly. Storm clouds form and thunderstorms may be scattered along cold fronts. Skies clear and temperature decreases after the front passes.

Cold Front