WX 201 Final Exam with correct Answers
Which of the following air masses is not typically seen in the U.S. in winter?
Maritime polar
Continental tropical
Maritime tropical
Continental polar
Continental tropical
The continental arctic (cA) air mass is usually produced at high latitudes b...
WX 201 Final Exam with correct Answers
Which of the following air masses is not typically seen in the U.S. in winter?
Maritime polar
Continental tropical
Maritime tropical
Continental polar
Continental tropical
The continental arctic (cA) air mass is usually produced at high latitudes by persistent:
Radiational cooling
It's January and you're in Portland, Oregon. The wind is blowing from the west at 10 knots and it's
drizzling. What type of air mass are you likely experiencing?
Maritime polar
A front is technically defined as:
A transition zone between air masses of different densities
You're in class on campus on some December day in some year. When you entered class, the
temperature was 65 F with partly cloudy skies and winds out of the south at 15 knots. When you
leave class, you find that the temperature is 52 F with light rain and winds out of the NW at 20 knots.
What type of front likely passed through Daytona while you were in class?
Cold front
(T/F) A dryline is defined as an air temperature boundary.
False
A cold occluded front features _____ air just behind the front than just ahead of it
Colder
The passage of a warm occluded front in the winter would most likely occur in which of the following
locations?
Seattle, Washington
Portland, Maine
Kansas City
Raleigh, NC
Seattle, Washington
An occluded front is typically marked using a ______
Purple line
A _______ front features warm air advancing into a region of cooler air.
Warm
Does cA (continental arctic) exist in the Summer?
No
, Does cP (continental polar) exist in Summer?
Yes
mP most common places
Pacific NW, Northern California
New England/Mid-Atlantic coasts
Characteristics of mT air mass in North America
high dewpoints, heavy precipitation
In summer mT
east of the Rockies, west side of Bermuda high
very unstable
When are tornadoes most likely to occur in FL?
January
How does meridional flow assist in occluded fronts?
Allow the air to go up and down allowing them to mix
What is the biggest collision point?
Midwest: Texas, Oklahoma, Kansas, Nebraska maybe North Dakota
Does cold air move faster on the surface or aloft?
Surface
Why shouldn't pilots go through stationary fronts?
icing concern
Where is it colder in a cold front? ahead or behind the line?
behind
Where is the lowest pressure in a front?
Right at the front
maritime
A humid air mass that forms over oceans
continental
A dry air mass that forms over land
What does a cold front do to air that was warm before it?
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