6.5-6.8 Flashcards

1
Q

This is a weather report for the 5 mile radius around an airport. Far less frequent issued than METARS. Valid for 24 or 30 hours. Is updated four times a day. At 000Z, 0600Z, 12 00Z, 1800Z. Use the aviation weather website find this.

A

Terminal aerodrome forecast

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2
Q

What are the two types of TAF report?

A

TAF or TAF AMD, which means amended

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3
Q

The only cloud type forecast on TAF reports is

A

Cumulonimbus

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4
Q

In the TAF for KMEM, what does “SHRA” stand for?

A

Rain showers

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5
Q

During the time period from 0600Z to 0800Z what does ability is forecast for KOKC?

A

Greater than six statute miles

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6
Q

(Figure 15, Lesson 6.5) In the TAF from KOKC, the clear sky becomes

A

Overcast at 2000 feet during the forecast period Between 2200Z and 2400Z.

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7
Q

What is the valid time period for the TAF for KMEM, which is 1218/1324?

A

1800Z on the 12th to 2400Z on the 13th

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8
Q

A weather advisory that contains information about significant weather, events, like thunderstorms in severe turbulence.

A

Significant meteorological information (SIGMET)

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9
Q

This is a weather advisory of significant weather, but one that reports weather of lower intensity’s that are potentially unsafe to pilots. Things like moderate turbulence, sustain surface winds of 30 minutes or more, or widespread, restricted visibility.

A

Airmans meteorological information (AIRMET)

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10
Q

Where can SIGMETS and AIRMETS be found?

A

Aviation weather, center website

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11
Q

What can flying in the cold affect most?

A

Your thumbs and your aircraft batteries

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12
Q

Thunderstorms are produced by ________________________ and they form when there is …

A

Cumulonimbus clouds

High humidity - sufficient water vapor or moisture
unstable conditions - the rate of change of the temperature as the air increases an altitude
lifting force - initial upward boost to start the process of heat

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13
Q

This is a non-fragile, narrow band of thunderstorms, usually ahead of a cold front. Destructive winds, tornadoes, heavy hail. 

A

Squall line thunderstorm

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14
Q

Pilots should be alert for__________ any time the temperature approaches freezing, and there are visible moisture in the air.

A

icing

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15
Q

Possible __________ should be anticipated with any thunderstorm, especially beneath the anvil of a large cumulonimbus cloud. it can be encountered in clear air several miles from thunderstorm clouds. Even small bits of this can damage your unmanned aircraft.

A

Hail

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16
Q

SIGMETs are issued as a warning i weather conditions hazardous to which aircraft?

A

All aircraft

17
Q

AIRMETs are advisories of significant weather phenomena, but of lower intensity’s than SIGMETs and are intended for dissemination to who?

A

All pilots

18
Q

There’s a thunderstorm activity in the vicinity of your flight area. Which hazardous atmospheric phenomenon should you watch out for?

A

Wind shear turbulence

19
Q

Which thunderstorm lifecycle stage is mostly characterized by downdrafts?

A

Dissipating

20
Q

A thunderstorm will reach its greatest intensity during which stage?

A

Mature stage

21
Q

What features typically associated with the cumulus stage of a thunderstorm?

A

Continuous updraft

22
Q

The mature stage of a thunderstorm begins with

A

The start of precipitation

23
Q

Which weather phenomenon is always associated with a thunderstorm?

A

Lightning

24
Q

When you’re flying your sUAS, icing can form if there’s

A

Visible moisture

25
Q

In which environment is ice most likely to have the highest accumulation rate on your aircraft?

A

Freezing rain

26
Q

2 key things to remember about clouds:

A

If you see lenticular clouds, expect turbulence. Wind can be blowing quite strong through lenticular clouds.

To pilots the most dangerous type of cloud is a cumulonimbus or thunderstorm cloud. they are turbulent impose significant flight hazard.

27
Q

Lowest layer of clouds reported as broken or overcast, or the vertical invisibility into an obscuration like fog or haze

A

Ceiling

28
Q

____________________ refers to the greatest horizontal distance at which prominent object can be viewed with the naked eye. Current ______________ is also reported in META R, and other aviation weather reports as well as by automated weather systems.

A

Visibility

29
Q

What should you expect if you see lenticular clouds over a mountain?

A

Strong turbulence

30
Q

What should you expect if you see Nimbus clouds?

A

Precipitation. Nimbus means rain.

31
Q

Ceiling conditions (cloud base) can be calculated from

A

The temperature and the dewpoint. It is reported by the aviation routine weather report (METAR) and automated weather stations of various types.

32
Q

The weather report this the cloud ceiling at 800 feet. What’s the highest you can operate your unmanned aircraft?

A

300 feet

33
Q

This brings and cool, dry air and forms over a polar region.

A

Continental polar air mass

34
Q

This brings warm, moist air and forms over warm, tropical waters.

A

Maritime tropical air mass

35
Q

Unstable air tends to display the following characteristics.

A

Cumuliform clouds, turbulent air, good visibility, showery precipitation

36
Q

Stable air tends to display the following characteristics

A

Stratiform clouds, smooth air, fair to poor visibility in haze and smoke, continuous precipitation

37
Q

An air mass moving inland from the coast in winter is likely to result in

A

Fog