Frontal Weather

Question 1

The primary cause of frontal weather is

Answer 1

the lifting of warm air by colder air

Question 2

The frontal inversion of any front always slopes over the (warm/cold) air and the precipitation associated with it normally occurs in the (warm/cold) air.

Answer 2

cold

cold

Question 3

The type of air masses most often associated with fronts in the USA are the

Answer 3

Polar and Tropical

Question 4

All front have inversions.

Answer 4

True

Question 5

What four discontinuities must be present for the meteorologist to draw a frontal symbol on the weather chart?

Answer 5

temperature
dewpoint
pressure
wind shift

Question 6

Define cold front

Answer 6

the leading edge of the cold air mass normally moving SE

Question 7

The coldest air will always be (ahead/behind) a cold front

Answer 7

behind

Question 8

The average speed of a cold front is about ___ knots and the average slope is (steep/shallow)

Answer 8

25-35 knots

steep

Question 9

Cold fronts are usually associated with (cumuliform/ stratiform) clouds which tend to produce a (narrow band/ wide-spread area) of clouds and precipitation.

Answer 9

cumuliform

narrow band

Question 10

The general direction of movement of a cold front is TO the

Answer 10

SE

Question 11

The surface wind behind the cold front is generally ___(FROM) and the surface wind ahead of the cold front is typically ___ (direction)

Answer 11

FROM NW

direction SW

Question 12

A severe line of thunderstorms, _______, may form ahead of (slow/fast) moving cold fronts

Answer 12

squall line

fast

Question 13

What flight procedure in the vicinity of a cold front?

Answer 13

Do not go. Wait it out.

Question 14

Define Warm Front

Answer 14

trail edge of cold air mass moving NE overridden by warmer air.

Question 15

The average slope of the warm front has a ratio of _____ and always slopes over the (cold/warm) air mass.

Answer 15

1:200

cold

Question 16

Warm fronts normally move TO the

Answer 16

NE

Question 17

The surface wind behind a warm front generally blows FROM____ and the surface wind ahead of the warm front usually FROM the____

Answer 17

SW

SE

Question 18

What type of weather is usually associated with a stable warm front?

Answer 18

A large area of ST, NS, AS clouds with rain and possible fog

Question 19

Where would the weather associated with a stable warm front occur?

Answer 19

ahead of the warm front

Question 20

What other hazards should a pilot be aware of if the warm air being lifted by a warm front is unstable?

Answer 20

Thunderstorms embedded

Question 21

What are the two important elements of preflight planning in vicinity of warm front?

Answer 21

Ensure fuel for long flight

possible diversion to ALT

Question 22

The weather associated with a stationary front will normally be similar to that of a (cold/warm) front, but usually less intense

Answer 22

warm

Question 23

What is the average speed of a stationary front?

Answer 23

less than 5 kts

Question 24

Winds associated with a stationary front usually flow (parallel/perpendicular) to the frontal symbol.

Answer 24

parallel

Question 25

Stationary fronts may develop into ______ ______ (type of front).

Answer 25

frontal waves

Question 26

What type of front develops when the faster moving cold front of an open wave catches up with the slower moving warm front of the wave?

Answer 26

occluded front

Question 27

Which front is considered to have the most violent weather? Why?

Answer 27

occulsions because combines both warm and cold front weather

Question 28

IF an occluded front symbo on a weather map is an extension of the cold front symbol, it is a _____ type occulsion. If an occluded front symbol is an extension of a warm front symbol, it is a ____ type occulsion.

Answer 28

cold | warm

Question 29

What is the procedure for flying in the vicinity of an occluded front?

Answer 29

Circumnavigate or avoid