I have two weather quetions?
How do cold fronts produce stormy weather?
A.Warm moist air ahead of the front is uplifted as the front passes, causing the moisture to condense and precipitate.
B.Cold air behind the front causes the water vapor to evaporate, producing the storm.
C.The warm air mixes with the cold air along the front, creating low pressure and storms.
D.The cold air holds more water vapor than the warm air, thus it must precipitate out as rain or snow.
What is a wave cyclone?
A.It is a type of cold frontal uplift that occurs in waves along a squall line.
B.It is the rise in sea level of the water underneath a hurricane.
C.It is a spiraling storm system at the boundary between the polar air and the warm mid-latitude air.
D.It is the process of storm development over the mountains as air is uplifted by the mountain slopes.
Tagged with: cold air • cold fronts • cyclone • hurricane c • mid latitude • mountain slopes • mountains • polar air • precipitate • rain • sea level • squall line • storm development • storm system • storms • stormy weather • uplift • warm moist air • water vapor • Waves
Filed under: Weather
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For you first question…The answers are A. With a cold front, the warm moist air is lifted above the cold denser air and condensation will occur. This will result in precipitation. See the following link
http://ww2010.atmos.uiuc.edu/(Gh)/wwhlpr/cold_front_precip.rxml?hret=/guides/mtr/cld/cldtyp/home.rxml&prv=1
B. Evaporation of moisture would not produce a storm.
C. The warm and cold does not mix, instead the warm is is lifted upwards and it is this lifting that produces the surface low pressure. Also, you will need more than just instability to produce precipitation. You will also need air to rise and moisture to condense.
D. Cold air does not hold more water vapor than warm air. As a matter of fact, air can not hold moisture period. See this link for details.
http://www.ems.psu.edu/~fraser/Bad/BadClouds.html
So the answer from TJ of "C" for the first question is not correct.
Question 2, the answer is C. A wave cyclone forms between the polar air and the warm mid-latitude air. Se following link for details.
http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cyc/home.rxml
A. This is not a wave cyclone. A wave cyclone does is not always associated with a squall line.
B. A storm surge is the rise in the sea level under a hurricane, not a wave cyclone.
D. Mountain lifting of air to cause rain is called orographic precipitation and may not be related to a cold front.
Edit….update: I see that TJ has now changed his answer to your first question to "A". Now his answers are correct.
1-A
2-C Wave cyclones are a group of cyclones defined as synoptic scale low pressure weather systems that occur in the middle latitudes of the Earth (outside the tropics) having neither tropical nor polar characteristics, and are connected with fronts and horizontal gradients in temperature and dew point otherwise known as "baroclinic zones".[