weather fronts and systems
TRANSCRIPT
Weather fronts and systems
http://www.wundermaps.com/maps/
Fronts
Where two air masses meet
• Warm – warm air meets cooler air
• Cold – cooler air meets warmer air
• Stationary – warm and cold fronts of equal strength meet
• Occluded – 3 air masses meet
Warm Front
Warm Front
Along the front there is rain, followed by slow steady rain
To the left (west) of a warm front, there is usually a
• Low pressure (WARM air)
Warm Front
• Stratus clouds
• Followed by warmer air, more evaporation
• Often rainy weather
Cold Front
Cold Front
• Usually stormy weather along the front, followed by a high pressure system (fair weather)
Cold Front
• Cumulonimbus clouds
• Storms followed by clear, fair, cooler weather
Stationary Front
Stationary front
• Stays over an area for a long period of time
• Usually brings rain
Occluded Front
• Where 3 pressure systems meet
• May spawn tornadoes, tropical cyclones, hurricanes
• May be very destructive