Which air masses have the greatest effect on weather conditions in much of the United States quizlet?
Continental polar (cP) and maritime tropical (mT) air masses have the greatest influence on the weather in North America. You just studied 22 terms!
Which air masses influence much of the weather in North America?
Much of the weather in North America, especially weather east of the Rocky Mountains, is influenced by continental polar (cP) and maritime tropical (mT) air masses.
Which of the air masses that affect the United States brings dry weather?
A continental polar air mass can form over the land during the winter months. In the Northern Hemisphere, it originates in northern Canada or Alaska. As it moves southward, it brings dry weather conditions to the United States. … Continental arctic air is much colder and drier than continental polar air.
What four types of air masses affect the United States?
The 4 types of air masses that impact North America most commonly are maritime tropical (mT), continental tropical (cT), maritime polar (mP), and continental polar (cP).
Which type of air mass has the greatest effect on weather in Montana?
Option (A) cP and Mt
Continental Polar and Maritime Tropical air masses have the greatest effect on weather conditions in much of the United States.
Which two air masses have the greatest impact on the West Coast of the US?
Maritime polar air masses, abbreviated mP on weather maps, tend to dominate the Pacific coast region. These air masses form over a cold ocean current in the northern Pacific Ocean. Although mP air masses originate at northerly latitudes, they do not feature as cold of air as continental polar air masses.
Which air mass affects North Carolina?
North Carolina is susceptible to large variations in temperature during the winter due to its location and geographical features. When the jet stream dives south in the winter, it can bring bitterly cold, Arctic air all the way into North Carolina.
What air masses affect North America in winter?
Continental polar air mass is cold (K), dry and stable (s), and originates over the snow-covered central Canada to the north of 50°-60°N latitude, and Alaska while continental arctic air masses originate over arctic basin and Greenland ice cap.