2007-05-13 10:42:17 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Weather
when two air massas colide (not overtake) it is called a convergance a great example of a convergance is the pacific northwest specificly the puget sound area.
in the midwest when a cold front colides with a warm front you wil get instability combined with moisture and lift caused by daytime heating you have the the makings of severe thunderstorms.
http://www.srh.noaa.gov/srh/jetstream/mesoscale/ingredient.htm
2007-05-13 12:04:50 · answer #1 · answered by NWS Storm Spotter 6 · 0⤊ 0⤋
When they collide it depends on which air mass is advancing on the other. When warm air is advancing on cold air it is called a warm front. Cold air on warm air is a cold front. If neither one is advancing it is a stationary front.
2007-05-13 11:00:23 · answer #2 · answered by DaveSFV 7 · 0⤊ 1⤋
a community of low stress will in all risk form. warmth air will upward push and start up the creation of thunderstorms. Hurricanes do now not ensue in changing airmasses. If the greater effective factor winds are stable sufficient, the air indoors the thunderstorm will start to rotate: interior the commencing up up horizontally, then if stable sufficient rotation, vertically starting to be tornadoes. choose this helps.
2016-12-11 08:28:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A storm front, a squall line, major thunderstorm action
2007-05-13 10:48:27 · answer #4 · answered by Moon Maiden 3 · 0⤊ 1⤋
when a cold front overtakes a warm front it is called an occluded front
2007-05-13 11:26:23 · answer #5 · answered by rosie recipe 7 · 0⤊ 1⤋
If you are sure you asked the question you wanted, the answer would be an Occlusion.
2007-05-13 11:22:37 · answer #6 · answered by sunny d 2 · 0⤊ 1⤋