6/20/2023 0 Comments Cold front![]() Pressure is the force exerted on the Earth from the air above. We can tell where these are located by analyzing a map of sea level pressure. Low Pressureĭo you know what can cause a long stretch of dry, sunny weather? How about what brings rain and storms to eastern Iowa? It all comes down to large-scale circulations of wind, or better known as high and low pressure. NOAA SciJinks Lesson on How to Read Weather Maps High vs. This is represented by alternating half-circles and triangles in purple.Normally, precipitation is associated with this type of front and will be connected to an area of low pressure.Warm air rises as these air masses come together. Cool air from the cold front will meet the cooler air in front of the warm front.Occluded: A cold from can sometimes follow behind a warm front. This front is represented with alternating red half-circle and blue triangles pointing in the opposite direction.On either side of the stationary front, the weather can be drastically different.This can stay in the same place for days until the front can start moving again, normally from a change in wind direction or the front could just dissipate. Two masses of air are pushing against each other, but neither has enough power to overtake the other one.Stationary: This type of front is formed when a cold or warm front stops moving. The half-circles again point in the direction in which the front is moving. ![]()
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