Weather

Question 1

What are the 3 types of weather information?

Answer 1

Observation
forecast
analysis

Question 2

What sigments can last 6 hours

Answer 2

While sigments tipically last 4 hours

hurricanes
tropical cyclones
volcanic ash

can last 6hrs

Question 3

what is a Sierra

Answer 3

mountain obscurations or IFR conditions

Question 4

A airmet, sigment, and convective sigment is a forecast, observation, or analysis?

Answer 4

Forecast (weather advisory) they are expected to occur

Question 5

What is an FA

Answer 5

Area Forecast

Question 6

what is orographic lifting?

Question 7

Virga

Answer 7

Precipitation that evaporates before hitting the ground

Question 8

What are the characteristics of a micro-bust

Answer 8

an extreme downdraft up to 6,000 ft and can last 15 min with a horizontal diameter of 2.5 miles and depth of 1,000 feet

Question 9

what could happen in a temperature inversion

Answer 9

at the inversion there could be strong wind shears but stable air above. there can also be poor visibility due to the dust particles stabilizing

Question 10

What are 3 primary forces that effect the flow of wind

Answer 10

surface friction

pressure gradient force

Coriolis force

Question 11

high pressure

Answer 11

good performance
better weather
poor visibility

Question 12

Low pressure

Answer 12

Bad performance
worse weather
Better visibility

Question 13

stratiform Clouds

Answer 13

stable air
constant precipitation
poor visibility

Question 14

What are the 3 types of icing

Answer 14

Instrument icing

structural icing
Forms (rime, mix, clear)

Induction Icing
(engine)

Question 15

What are the types of fog

Answer 15

Steam
upslope
Ground
Advection
Radiation
Precipitation
Ice

Question 16

How can you tell if we have a stable or unstable rate

Answer 16

laps rate

Question 17

what can we expect with a cold front?

Answer 17

(clouds)

cumulus clouds

visibility good

showering precipitations

Question 18

What can we expect with a warm front?

Answer 18

(clouds)

stratiform clouds

poor visibility

constant precipitations

Question 19

What is the difference between the bolded and unbolded millibars in the prog chart?

Answer 19

bolded - forecasted pressure values for significant weather systems

unbolded - represent area of less significant pressure variations ( less intense weather changes)

Question 20

occluded front

Answer 20

embedded thunderstorm and Squall lines

Question 21

what is a cold and warm occluded front

Question 22

What are general weather characteristics of a cold and warm front