CPAER Meteorology Exam 3 (2024) || Questions & Answers (100% Correct)
CPAER Meteorology Exam 3 (2024) || Questions & Answers (100% Correct)
As raindrops fall through an airmass, dose the relative humidity go up or down? - ANSWER - Up
What are the characteristics of altocumulus clouds? - ANSW...
CPAER Meteorology Exam 3 (2024) ||
Questions & Answers (100% Correct)
As raindrops fall through an airmass, dose the relative humidity go up or down? - ANSWER - Up
What are the characteristics of altocumulus clouds? - ANSWER - Patchy, middle level clouds with some vertical development. Icing is usually present in the cloud above the icing level and will be especially heavy at the top.
How does the Coriolanus affect the wind in the northern hemisphere? - ANSWER - It deflects the wind to the right
Characteristics of margarine arctic air masses? - ANSWER - Moist and cold, usually dominates the Canadian weather in the winter and can form in the summer.
When are you most likely to find ice pellets? - ANSWER - Warm front in the winter.
What is most likely to happen at a stationary front? - ANSWER - The weather may drop below VFR minima, often happening suddenly due to rain.
A trowel is a trough of warm air aloft forced up by? - ANSWER - An occluded front. widespread cloud and precipitation often develop in advance of a trowel and a line of thunderstorms may occur.
What is a microburst - ANSWER - Severe down drafts less than 2 nm in diameter. With extreme winds lasting less than a few zac minutes.
Squall lines are? - ANSWER - A line of thunderstorms at a cold front that may extend for several miles.
What is AWOS and what does it do. - ANSWER - when does PROB appear on a TAF - ANSWER - During a specified period. It is reserved for hazardous aviation weather that includes TS, freezing precip, low level wind shear, ceilings and visibility less than IFR minimus at the airport.
Virga is a hazard and is? - ANSWER - Associated with thunderstorms and is a sign of strong downdrafts and microbursts
Jet streams develop more readily when the structure of the atmosphere features? - ANSWER - Strong horizontal temperature gradients and abrupt change in tropopause height. What are the different types of fog? - ANSWER - • Radiation fog
• Advection fog
• Upslope fog • Steam fog
• I've fog
Radiation fog - ANSWER - Formed by radiation cooling on clear nights. Where their relative humidity is high and wind is light.
What is Advection fog - ANSWER - • formed by the horizontal movement of warm moist air over a cool surface. • common on the coast and in the spring. • It is thick and can last several days. • will tend to persist until wind direction changes or increases above 15kt. • It typically turns into low level stratus cloud.
What is upslope fog? - ANSWER - Moist air moves up rising terrain. • An easterly wind blowing across the prairies causes up slop fog.
What is frontal fog? - ANSWER - • Caused by precipitation ahead of a warm front falls into colder air below. • As the rain evaporates saturation occurs causing fog. • most typically this happens at a warm front or trowal
• Can be known as precip fog
What is steam fog or sea smoke? - ANSWER - • Extreme cold dry air passes over a body of water, as the excess water condenses fog will form.
What's the difference between fog and mist? - ANSWER - If the visibility is less than 5/8
Sm it is considered Fg
What kind of weather can you expect when approaching a trowal? - ANSWER - Widespread cloud and precipitation with possibility of a line of thunderstorms.
What do the letters CCA on a metar signify? - ANSWER - When the metar has been corrected.
What are the difference altitudes for pressure charts? - ANSWER - 850mb-5000' ASL
700 mb - 10 000' 500 mb - 18 000'
250 mb - 34 000' ASL
When reading upper winds what does the code 7700 represent - ANSWER - -50 + 100 this gives you 270 @ 100kt
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