Weather+Frontsics19CastCa

**The purpose of this module is to introduce air masses and weather fronts ..  You will be able to describe from where they originate and some basic properties about each air mass affecting the United States. ** Cold or hot. An air mass is a large body of air that has similar temperature and moisture properties throughout. ===Weather FrontsRead the information about Weather Fronts===
 * 1) What typically happens when two different types of fronts collide? an occluded front forms
 * 2) What are the three types of fonts? Cold Front,Warm Front, Occluded.
 * 3) Describe the temperature of the air behind a cold front. It is 55F.

Answer the questions below.

 * 1) What happens when different types of are air masses collide?
 * 2)  What are the boundaries of air mass called?
 * 3) Define an air mass?
 * 4) How large may an air mass be?as much as the space or shape it is in.
 * 5) What does the term moist mean. It means slightly wet, or damp.
 * 6) If an air mass is humid what does that mean? that it is cold and warm after raining.
 * 7)  Describe an air mass which forms over Canada in terms of its temperature and moisture.O ne that forms over the Indian ocean is called a maritime tropical air mass
 * 8) Describe an air mass that forms over a desert in terms of its temperature and moisture.It is ever hot and humid plus there is ever little water in the desert.
 * 9)  Describe an air mass that forms over water in Gulf of Mexico in terms of its temperature and moisture. Masses of air that travel south from the wide expanses of land in Canada, and north from the warm waters of the Gulf of Mexico.
 * 10) In the area of the Unites states, which way do cold air masses move? (North or South) north
 * 11) In the area of the Unites states which way do warm air masses move? south
 * 12) Why are Canadian air masses considered to be dry air masses? it is ever hot over other in Canada
 * 13) What happens when a warm humid air mass meat a cold dry air mass? It makes a Columbus cloud.
 * 14) Why can cold air masses from Canada make it all the way down to the Gulf of Mexico?it can't make it
 * 15) What is a front? ** Fronts **** = the boundaries between air masses **
 * 16) Looking at the diagram above, which state has a temperature of 38F?Iowa
 * 17) Looking at the diagram above, which state has a temperature of 55F?Arkansas
 * 18) Looking at the diagram above, what would you expect the temperature of Illinois to be in three days? EXPLAIN!
 * 19) How does the temperature of an area change as a cold front passes?
 * 20) What does precipitation mean?
 * 21) What type of precipitation occurs when a cold front passes?
 * 22) Describe the type of air behind a warm front?
 * 23)  In which direction do warm fronts typically move.
 * 24) What type of precipitation usually occurs when a warm front passes by
 * 25) Label the two fronts on the diagram below:
 * 1) How is cold front diagrammed?
 * 2) How is a warm front diagrammed?
 * 3) What is a stationary front?
 * 4) How is a stationary front diagrammed?
 * 5) When warm air contacts cold air, which air mass typically rises above the other?
 * 6) Which of the following is a diagram of cold front and which is the warm front?