What happens when air masses meet?. What is an air mass?. Large volume of air with uniform temperature and humidity readings Gets its characteristics from where it forms Continental : forms over land (dry) Maritime : forms over water (moist) Tropical : forms near equator (warm)
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
What happens when air masses meet?
Continental Air Masses
Maritime Air Masses
What happens when different air masses meet?
Boundary between two different air masses is a:
(about 50 miles ahead and 25 miles behind)
(about 30 mph)
Warm air moving into cold
Warm air moving in
HINT: sudden burst of intense rain over a small area
HINT: this is a squall line
Clouds on Monday
Clouds on Tuesday
Another squall line: COLD FRONT
Robin Brueckner 2004
HINT: low gray clouds, long period of light snow
Sharp break between air masses
Formation of an Occluded Front
Winds spiral clockwise out of the High and counterclockwise into the LowFronts are low pressure – lousy weatherAfter the front passes – happy weather