Frontal Mechanics Flashcards
(16 cards)
What properties are used to locate and classify fronts?
Temperature, dew point, pressure, wind
What parameters of an air mass are generally uniform when measured across a horizontal plane?
Temperature and moisture
How will the winds shift during a cold front passage?
SW to NW
Squall lines generally develop where?
50 - 300 miles ahead of the cold front
How far ahead of a warm front can the associated cloud system reach?
500 to 700 miles
When encountering a stationary front, you can expect a ______° wind shift since surface winds tend to blow parallel on both sides of the front.
180
When flying through an occluded front, you can expect weather associated with ______ fronts.
Both cold and warm
The most severe weather with respect to an occluded front is generally located ______ NM south to ______ NM north of the frontal intersection.
100; 300
A(n) ______ front usually has no clouds or precipitation.
Inactive
The area that encompasses the weather located on either side of a front is called the ______.
Frontal zone
Every front is located in a _______.
Low-pressure trough
What kind of frontal system is depicted by the purple symbols in a graphic?
Occluded front
Which frontal system has a steeper slope?
A cold front
A line of violent thunderstorms that forms ahead of a cold front are known as ______.
Squall line
How does the wind normally shift with the passage of a warm front?
SE to SW
What type of weather is usually associated with a stationary front?
Weather similar to a warm front, but usually less intense
