Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Sheppard Air ATM Memory Items (Version 48) > Weather Knowledge > Flashcards

Weather Knowledge Flashcards

1
Q

Weather Knowledge: Adiabatic Warming

Adiabatic warming is also described as:

_______________ heating.

A

Weather Knowledge: Adiabatic Warming

Adiabatic warming is also described as:

compresssional heating.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Weather Knowledge: Tropical Cyclones

Gusts in tropical cyclones can exceed the average one-minute wind speed by as much as:

______%

A

Weather Knowledge: Tropical Cyclones

Gusts in tropical cyclones can exceed the average one-minute wind speed by as much as:

50%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Weather Knowledge: (CAT)

Clear air turbulence (CAT) associated with a mountain wave may extend as far as

_______ feet above the tropopause.

A

Weather Knowledge: (CAT)

Clear air turbulence (CAT) associated with a mountain wave may extend as far as

5000 feet above the tropopause.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Weather Knowledge:

Which area or areas of the Northern Hemisphere experience a generally east to west movement of weather systems?

______ and _____.

A

Weather Knowledge:

Which area or areas of the Northern Hemisphere experience a generally east to west movement of weather systems?

Arctic and subtropical.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Weather Knowledge:

Supercooled water droplets have been observed at temperatures as low as:

_____ °C

A

Weather Knowledge:

Supercooled water droplets have been observed at temperatures as low as:

-40 °C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Weather Knowledge:

Chart symbols over So Cal on 12-Hour Signficant Weather (Fig. 151)

Expected ____\_of moderate turbulent layer to be _____\_ feet MSL

A

Weather Knowledge:

Chart symbols over So Cal on 12-Hour Signficant Weather (Fig. 151)

Expected TOP of moderate turbulent layer to be 12,000 feet MSL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Weather Knowledge:

RMK SLP 993 6//// =

A

Weather Knowledge:

RMK SLP 993 6//// =

Sea Level Pressure 999.3 hectopascals and last 3 hrs rain indeterminate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Weather Knowledge:

Squall - sudden increase of at least

____ knots in avg wind speed to a sustained speed of ____ knots

or more for ___ min

A

Weather Knowledge:

Squall - sudden increase of at least

15 knots in avg wind speed to a sustained speed of 20 knots

or more for 1 min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Weather Knowledge:

IFR around Lake Superior etc =

A

Weather Knowledge:

IFR around Lake Superior etc =

Obscured skies and fog

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Weather Knowledge:

Continuous Solid Line Enclosing a Shaded Area =

A

Weather Knowledge:

Continuous Solid Line Enclosing a Shaded Area =

All stations are reporting IFR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Weather Knowledge:

Flt from OK to TN =

A

Weather Knowledge:

Flt from OK to TN =

Continuous/sh precip over half the area, mod. turb, frz temp above 10,000 ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Weather Knowledge:

Arrow A on Radar Summary Chart (RSC)

A

Weather Knowledge:

Arrow A on Radar Summary Chart (RSC)

Heavy to very heavy precip; echo tops to 30,000 ft; thndrstms and rain showers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Weather Knowledge:

Arrow B on Radar Summary Chart (RSC)

A

Weather Knowledge:

Arrow B on Radar Summary Chart (RSC)

Weak to moderate echoes, rain showers increasing in intensity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Weather Knowledge:

Arrow C on Radar Summary Chart (RSC)

A

Weather Knowledge:

Arrow C on Radar Summary Chart (RSC)

Moving NE to 20 kts and heavy to very heavy echoes up to 28,000 ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Weather Knowledge:

500 mb = _______

300 mb = _______

200 mb = _______

A

Weather Knowledge:

500 mb = FL180

300 mb = FL300

200 mb = FL390

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for which weather conditions?

________ thunderstorms, ______ ___ thunderstorms, and thunderstorms

with ____ inch hail or ___________.

A

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for which weather conditions?

Embedded thunderstorms, lines of thunderstorms,

and thunderstorms with 3/4 inch hail or tornadoes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for line of thunderstorms:

____ miles long with thunderstorms affecting ____ percent of its length.

A

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for line of thunderstorms:

60 miles long with thunderstorms affecting 40 percent of its length.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for severe thunderstorms:

occurring for more than ____ minutes of the _____ period.

A

Weather Knowledge:

SIGMETs

Convective SIGMETs are issued for severe thunderstorms:

occurring for more than 30 minutes of the valid period.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Weather Knowledge:

SIGMETs

A SIGMET is issued when weather affects

_____ square miles or more.

A

Weather Knowledge:

SIGMETs

A SIGMET is issued when weather affects

3,000 square miles or more.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Weather Knowledge:

SIGMETs

SIGMETs may be issued for the contiguous U.S.:

as a _________ SIGMET when obscured ____________ are forecast.

A

Weather Knowledge:

SIGMETs

SIGMETs may be issued for the contiguous U.S.:

as a convective SIGMET when obscured thunderstorms are forecast.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Weather Knowledge:

SIGMETs

SIGMETs (other than domestic convective SIGMETs) may be valid for not more than _____ hours of continuing phenomena.

A

Weather Knowledge:

SIGMETs

SIGMETs (other than domestic convective SIGMETs) may be valid for not more than 4 hours of continuing phenomena.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Weather Knowledge:

Microburst

An aircraft that encounters a headwind of 40 knots, within a microbust, may expect a total shear across the microburst of:

______ knots.

A

Weather Knowledge:

Microburst

An aircraft that encounters a headwind of 40 knots, within a microbust, may expect a total shear across the microburst of:

80 knots.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Weather Knowledge:

Microburst

What is the expected duration of an individual microburst?

Seldom longer than ____ minutes from the time the burst strikes the ground until dissipation.

A

Weather Knowledge:

Microburst

What is the expected duration of an individual microburst?

Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Weather Knowledge:

Microburst

Maximum downdrafts in a microbust encounter may be as strong as:

_____ ft/min.

A

Weather Knowledge:

Microburst

Maximum downdrafts in a microbust encounter may be as strong as:

6000 ft/min.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Weather Knowledge: Jet Stream Which action is recommended if jetstream turbulence in encountered with a direct headwind or tailwind? Change ________ or ________ to avoid a possible _________ turbulent area.
Weather Knowledge: Jet Stream Which action is recommended if jetstream turbulence in encountered with a direct headwind or tailwind? Change **_altitude_** or **_course_** to avoid a possible **_elongated_** turbulent area.
26
Weather Knowledge: Jet Stream Where is the normal location of the jet stream relative to surface lows and fronts? The jet stream is located _______ of the _______ \_\_\_\_\_\_\_\_.
Weather Knowledge: Jet Stream Where is the normal location of the jet stream relative to surface lows and fronts? The jet stream is located **_North_** of the **_surface_** **_system_**.
27
Weather Knowledge: Jet Stream An upper level wind cannot be considered a jet stream unless the wind speed is: at least ____ knots.
Weather Knowledge: Jet Stream An upper level wind cannot be considered a jet stream unless the wind speed is: at least **_50_** knots.
28
Weather Knowledge: Jet Stream Which type of jetstream can be expected to cause the greater turbulence? A _______ jetstream associated with a _____ \_\_\_\_\_ pressure trough.
Weather Knowledge: Jet Stream Which type of jetstream can be expected to cause the greater turbulence? A **_curving_** jetstream associated with a **_deep_** **_low_** pressure trough.
29
Weather Knowledge: Jet Stream Jet streams are found: \_\_\_\_ the \_\_\_\_\_\_.
Weather Knowledge: Jet Stream Jet streams are found: **_near_** the **_tropopause_**.
30
Weather Knowledge: Jet Stream The decrease in wind speed from the core of the jet stream is greatest on the: \_\_\_\_\_\_\_\_ side of the jet stream.
Weather Knowledge: Jet Stream The decrease in wind speed from the core of the jet stream is greatest on the: **_polar_** side of the jet stream.
31
Weather Knowledge: Wind Shear A strong wind shear can be expected: on the ____ \_\_\_\_\_\_\_\_ side of a \_\_\_\_-knot jetstream core.
Weather Knowledge: Wind Shear A strong wind shear can be expected: on the **_low_** **_pressure_** side of a **_100_**-knot jetstream core.
32
Weather Knowledge: Wind Shear Which is a definition of 'severe wind shear'? Any rapid change in _____ \_\_\_\_\_\_\_ or _______ which causes airspeed changes greater than _____ knots.
Weather Knowledge: Wind Shear Which is a definition of 'severe wind shear'? Any rapid change in **_wind_** **_direction_** or **_velocity_** which causes airspeed changes greater than **_15_** knots.
33
Weather Knowledge: Wind Shear Doppler wind measurements indicate that the windspeed change change a pilot may expect when flying through the peak intensity of a microburst is approximately \_\_\_\_\_ knots.
Weather Knowledge: Wind Shear Doppler wind measurements indicate that the windspeed change change a pilot may expect when flying through the peak intensity of a microburst is approximately **_45_** knots.
34
Weather Knowledge: Wind Shear Strong shear: May be encountered up to _____ miles from a \_\_\_\_\_\_\_\_\_\_\_\_\_.
Weather Knowledge: Wind Shear Strong shear: May be encountered up to **_20_** miles from a **_thunderstorm_**.
35
Weather Knowledge: Wind Shear The vertical wind shear that is critical for probability of turbulence is: \_\_\_ knots or more per _____ feet.
Weather Knowledge: Wind Shear The vertical wind shear that is critical for probability of turbulence is: **_6_** knots or more per **_1000_** feet.
36
Weather Knowledge: What is the difference between an **air mass** thundersorm and a **steady state** thunderstorm? **Air mass** thunderstorm downdrafts and precipitation _______ and ______ the updrafts.
Weather Knowledge: What is the difference between an **air mass** thundersorm and a **steady state** thunderstorm? **Air mass** thunderstorm downdrafts and precipitation **_retard_** and **_reverse_** the updrafts.
37
Weather Knowledge: Steady State Thunderstorms are usually associated with: \_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_.
Weather Knowledge: Steady State Thunderstorms are usually associated with: **_weather_** **_systems_**.
38
Weather Knowledge: Surface heating can produce: \_\_\_\_\_\_ _______ thunderstorms.
Weather Knowledge: Surface heating can produce: **_air_** **_mass_** thunderstorms.
39
Weather Knowledge: Severe Thunderstorm \_\_\_\_\_ mph wind and/or ___ in size hail
Weather Knowledge: Severe Thunderstorm = **_58 mph wind and/or 1 in size hail_**
40
Weather Knowledge: Thunderstorm updrafts: Updrafts in the mature stage of a thunderstorms can be expected to exceed: \_\_\_\_\_\_ feet per minute.
Weather Knowledge: Thunderstorm updrafts: Updrafts in the mature stage of a thunderstorms can be expected to exceed: **_6000_** feet per minute.
41
Weather Knowledge: Thunderstorm downdrafts: Downdrafts in thunderstorms may exceed: \_\_\_\_ knots.
Weather Knowledge: Thunderstorm downdrafts: Downdrafts in thunderstorms may exceed: **_24_** knots.
42
Weather Knowledge: Thunderstorm downdrafts: Downdrafts in thunderstorms can be expected to exceed: \_\_\_\_\_\_ feet per minute.
Weather Knowledge: Thunderstorm downdrafts: Downdrafts in thunderstorms can be expected to exceed: **_2500_** feet per minute.
43
Weather Knowledge: Summer thunderstorms in the arctic region will generally move: \_\_\_\_\_\_\_\_ to ________ in polar \_\_\_\_\_\_\_\_\_\_.
Weather Knowledge: Summer thunderstorms in the arctic region will generally move: **_northeast_** to **_southeast_** in polar **_easterlies_**.
44
Weather Knowledge: A 'cyclone' is similar to a tropical storm in: the _______ \_\_\_\_\_\_\_\_ with winds of _____ knots or more.
Weather Knowledge: A 'cyclone' is similar to a tropical storm in: the **_Indian**_ _**Ocean_** with winds of **_65_** knots or more.
45
Weather Knowledge: Tropical storms form when: a system has sustained winds of _____ to ______ knots.
Weather Knowledge: Tropical storms form when: a system has sustained winds of **_35_** to **_64_** knots.
46
Weather Knowledge: Test data indicate that ice, snow or frost having a thickness and roughness similar to medium or coarse sand paper on the leading edge and upper surface of a wing can: \_\_\_\_\_\_ lift by as much as ______ percent and \_\_\_\_\_\_\_\_\_\_ drag by ______ percent.
Weather Knowledge: Test data indicate that ice, snow or frost having a thickness and roughness similar to medium or coarse sand paper on the leading edge and upper surface of a wing can: **_Decrease_** lift by as much as **_30_** percent and **_Increase_** drag by **_40_** percent.
47
Weather Knowledge: You need the most accurate information on current and forecast icing conditions. The best sources are: \_\_\_\_\_\_\_\_, _______ \_\_\_\_\_\_\_\_\_ and \_\_\_\_\_\_\_\_\_.
Weather Knowledge: You need the most accurate information on current and forecast icing conditions. The best sources are: **_PIREPs_**, **_AIRMET_** **_Zulus_** and **_SIGMETs_**.
48
Weather Knowledge: Ice fog forms in conditions favorable to: \_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_.
Weather Knowledge: Ice fog forms in conditions favorable to: **_radiation_** **_fog_**.
49
Weather Knowledge: Freezing Rain You encounter freezing rain at altitude. You know that: you will find an area of ______ \_\_\_\_ above you.
Weather Knowledge: Freezing Rain You encounter freezing rain at altitude. You know that: you will find an area of **_warmer_** **_air_** above you.
50
Weather Knowledge: Freezing drizzle often forms by the: \_\_\_\_\_\_\_-\_\_\_\_\_\_\_\_ process.
Weather Knowledge: Freezing drizzle often forms by the: **_collision_**-**_coalesence_** process.
51
Weather Knowledge: Stratus Clouds Stratus clouds are known for: \_\_\_\_\_ or ____ turbulence with _______ \_\_\_\_\_\_\_ at temperatures _____ or _______ \_\_\_\_\_\_\_\_.
Weather Knowledge: Stratus Clouds Stratus clouds are known for: **_little_** or **_no_** turbulence with **_hazardous_** **_icing_** at temperatures **_near_** or **_below_** **_freezing_**.
52
Weather Knowledge: When flying in high level cirriform clouds, you know clear air turbulence is: \_\_\_\_\_\_\_ in the clouds.
Weather Knowledge: When flying in high level cirriform clouds, you know clear air turbulence is: **_likely_** in the clouds.
53
Weather Knowledge: With high altitude moisture present, cirriform clouds will form on the _________ side of the jet stream.
Weather Knowledge: With high altitude moisture present, cirriform clouds will form on the **_equatorial_** side of the jet stream.
54
Weather Knowledge: Low clouds are considered to be clouds from near surface to \_\_\_\_\_\_ feet.
Weather Knowledge: Low clouds are considered to be clouds from near surface to **_6,500_** feet.
55
Weather Knowledge: Middle Clouds Middle clouds are considered to be the clouds between: \_\_\_\_\_\_ - ______ feet
Weather Knowledge: Middle Clouds Middle clouds are considered to be the clouds between: **_6,500_** - **_23,000_** feet
56
Weather Knowledge: High clouds are considered to be clouds between: \_\_\_\_\_\_\_ - _______ feet.
Weather Knowledge: High clouds are considered to be clouds between: **_16,500_** - **_45,000_** feet.
57
Weather Knowledge: U.S. High-Level Significant Weather (SIGWX) For international oceanic flights, a U.S. High-Level Significant Weather (SIGWX) Chart is prepared for use: between FL ____ and FL \_\_\_\_.
Weather Knowledge: U.S. High-Level Significant Weather (SIGWX) For international oceanic flights, a U.S. High-Level Significant Weather (SIGWX) Chart is prepared for use: between FL **_250_** and FL **_630_**.
58
Weather Knowledge: Tropopause What weather feature occurs at altitude levels near the tropopause? \_\_\_\_\_\_\_\_ winds and ______ wind shear zones.
Weather Knowledge: Tropopause What weather feature occurs at altitude levels near the tropopause? **_Maximum_** winds and **_narrow_** wind shear zones.
59
Weather Knowledge: Tropopause The tropopause varies from: \_\_\_\_\_\_ feet at or below the poles to _______ feet at the equator.
Weather Knowledge: Tropopause The tropopause varies from: **_20,000_** feet at or below the poles to **_65,000_** feet at the equator.
60
Weather Knowledge: Turbulence The horizontal wind shear, critical for turbulence (moderate or greater) per 150 miles is: \_\_\_\_\_\_\_ than _____ knots.
Weather Knowledge: Turbulence The horizontal wind shear, critical for turbulence (moderate or greater) per 150 miles is: **_greater_** than **_18_** knots.
61
Weather Knowledge: Turbulence (GTG-2 Charts) Maximum turbulence potential charts (GTG-2) are issued: \_\_\_\_\_\_\_\_\_\_\_.
Weather Knowledge: Turbulence (GTG-2 Charts) Maximum turbulence potential charts (GTG-2) are issued: **_hourly_**.
62
Weather Knowledge: Turbulence For turbulence avoidance, you would do well to avoid areas: where _________ wind shear exceeds ____ knots per ____ miles.
Weather Knowledge: Turbulence For turbulence avoidance, you would do well to avoid areas: where **_horizontal_** wind shear exceeds **_40_** knots per **_150_** miles.
63
Weather Knowledge: CAT Clear air turbulence (CAT) can be found: in areas of _________ and _________ wind shear within the ____ \_\_\_\_\_\_\_.
Weather Knowledge: CAT Clear air turbulence (CAT) can be found: in areas of **_horizontal_** and **_vertical_** wind shear within the **_jet_** **_stream_**.
64
Weather Knowledge: CAT Moderate CAT is considered to be: when the vertical windsheer is ____ knots per ______ feet or greater, and/or the horizontal windshear is _____ knots per _____ miles or greater.
Weather Knowledge: CAT Moderate CAT is considered to be: when the vertical windsheer is **_5_** knots per **_1,000_** feet or greater, and/or the horizontal windshear is **_40_** knots per **_150_** miles or greater.
65
Weather Knowledge: CAT Under what conditions would clear air turbulence (CAT) most likely be encountered? When constant pressure charts show \_\_\_\_-knot isotachs less than _____ NM apart.
Weather Knowledge: CAT Under what conditions would clear air turbulence (CAT) most likely be encountered? When constant pressure charts show **_20_**-knot isotachs less than **_150_** NM apart.
66
Weather Knowledge: Storm Gusts Storm gust fronts often move as much as: \_\_\_\_ miles ahead of the associated precipitation.
Weather Knowledge: Storm Gusts Storm gust fronts often move as much as: **_15_** miles ahead of the associated precipitation.
67
Weather Knowledge: Water Vapor What is the result when water vapor changes to the liquid state while being lifted in a thunderstorm? \_\_\_\_\_\_\_ ______ is _______ to the atmosphere.
Weather Knowledge: Water Vapor What is the result when water vapor changes to the liquid state while being lifted in a thunderstorm? **_Latent_** **_heat**_ is _**released_** to the atmosphere.
68
Weather Knowledge: Unsaturated Air Cooling Rate What is the approximate rate unsaturated air will cool flowing upslope? \_\_\_ °C per 1000 ft.
Weather Knowledge: Unsaturated Air Cooling Rate What is the approximate rate unsaturated air will cool flowing upslope? **_3_** °C per 1000 ft.
69
Weather Knowledge: Saturated Air Vaporization When saturated air moves downhill, its temperatures increase at a ________ rate than dry air because _________ uses heat.
Weather Knowledge: Saturated Air Vaporization When saturated air moves downhill, its temperatures increase at **_slower_** rate than dry air because **_vaporization_** uses heat.
70
Weather Knowledge: Which weather condition is an example of a nonfrontal instability band? \_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_
Weather Knowledge: Which weather condition is an example of a nonfrontal instability band? **_Squall_** **_Line_**
71
Weather Knowledge: Cold Front What weather is expected after the passage of a fast-moving cold front? \_\_\_\_\_\_ _______ skies, ________ winds and _______ temperatures.
Weather Knowledge: Cold Front What weather is expected after the passage of a fast-moving cold front? **_Rapidly_** **_clearing_** skies, **_turbulent_** winds and **_colder_** temperatures.
72
Weather Knowledge: Frontal Waves In which meteorological conditions can frontal waves and low pressure areas form? \_\_\_\_\_-\_\_\_\_\_ fronts or _________ fronts.
Weather Knowledge: Frontal Waves In which meteorological conditions can frontal waves and low pressure areas form? **_Slow_**-**_moving_** fronts or **_stationary_** fronts.
73
Weather Knowledge: Constant Pressure Analysis Charts contain contours, isotherms, and some contain isotachs. The contours depict: \_\_\_\_\_\_\_, lows, troughs, and _______ aloft.
Weather Knowledge: Constant Pressure Analysis Charts contain contours, isotherms, and some contain isotachs. The contours depict: **_ridges_**, lows, troughs, and **_highs_** aloft.
74
Weather Knowledge: Dew point fronts result from: \_\_\_ ______ differences due to _______ \_\_\_\_\_\_\_.
Weather Knowledge: Dew point fronts result from: **_air**_ _**density_** differences due to **_humidity_** **_levels_**.
75
Weather Knowledge: Shallow Frontal Surfaces Shallow frontal surfaces tend to give: \_\_\_\_\_\_\_\_ _________ and large ______ \_\_\_ \_\_\_\_\_\_\_\_\_\_.
Weather Knowledge: Shallow Frontal Surfaces Shallow frontal surfaces tend to give: **_extensive_** **_cloudiness_** and large **_areas**_ _**of**_ _**precipitation_**.

Sheppard Air ATM Memory Items (Version 48) (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions