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pointsixtyfive.com Basics Study Guide supplemental questions > Forecasts and Advisories > Flashcards

Forecasts and Advisories Flashcards

1
Q

TAF?

A

Terminal Aerodrome Forecast

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2
Q

Terminal Aerodrome Forecast? (3 points)

A
  1. Expected meteorological conditions
  2. specified time period
  3. Within 5 SM of an airport
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3
Q

SIGMET?

A

Significant Meteorological Information

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4
Q

Significant Meteorological Information (2 points)

A
  1. Weather advisory

2. Concerning weather significant to the safety of all aircraft.

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5
Q

Convective SIGMET?

A
  1. Weather advisory

2. Concerning convective weather significant to the safety of all aircraft.

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6
Q

convective weather?

A
  1. Circular weather motion
  2. When warmer air or liquid rises
  3. While cooler air drops down
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7
Q

AIRMET?

A

Airman’s Meteorological Information

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8
Q

Airman’s Meteorological Information? (3 points)

A
  1. About weather
  2. Operational interest to aircraft
  3. Potentially hazardous to aircraft with limited capabilities
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9
Q

CWA?

A

Center Weather Advisory

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10
Q

Center Weather Advisory? (5 points)

A
  1. Unscheduled
  2. for ATC use
  3. to alert pilots
  4. of existing or anticipated adverse weather
  5. in the next two hours
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11
Q

MIS?

A

Meteorological Impact Statement

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12
Q

Meteorological Impact Statement? (5 points)

A
  1. Summarizes weather
  2. potential impact on
  3. air traffic flow control
  4. and flight operations
  5. center’s area of responsibility
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13
Q

FB? (not an acronym)

A

Wind and Temperature Aloft Forecast

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14
Q

Wind and Temperature Aloft Forecast?

A
  1. computer generated forecast
  2. wind direction, speed, and temperature
  3. selected times, altitudes, and locations
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15
Q

What other weather advisory is a TAF formatted similarly to?

A

A METAR

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16
Q

How many times per day is a TAF issued?

A

4 times per day

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17
Q

At what times are TAFs issued?

A
  1. 0000 (midnight)
  2. 0600
  3. 1200
  4. 1800
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18
Q

If needed, will Amendments be issued for TAFs?

A

yes

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19
Q

For how long is a TAF valid at most airports?

A

24 hours

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20
Q

For how long is a TAF valid at airports with significant international traffic?

A

30 hours

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21
Q

What 6 things does a TAF include (in order)?

A
  1. Time period
  2. Wind
  3. Visibility
  4. Significant weather
  5. Cloud and vertical obscurations
  6. Non-convective low-level wind shear
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22
Q

FM?

A

From

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23
Q

“From (FM)” on a TAF meaning?

A

rapid change to new conditions

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24
Q

TEMPO on TAF?

A

Temporary Conditions

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25
Q

“Temporary Conditions (TEMPO)” on a TAF meaning?

A
  1. temporary change to prevailing conditions

2. lists elements forecast to change

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26
Q

PROB30?

A
  1. 30% chance (low probability) of
  2. a thunderstorm
  3. or precipitation
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27
Q

PROB40?

A
  1. 40% chance (low probability) of
  2. a thunderstorm
  3. or precipitation
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28
Q

What does a PROB30/40 entry contain?

A
  1. PROB30 (or 40)
  2. Valid time
  3. Conditions
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29
Q

Decode PROB30 1022/1103 1SM TS

A
  1. 30% chance
  2. of a thunderstorm
  3. within 1 statute mile of the airport
  4. day 10, 2200 hours - day 11, 0300 hours
30
Q

What are In-flight advisories used for?

A

alerting pilots/controllers of hazardous weather

31
Q

What height measurements do in-flight advisories use?

A

MSL

32
Q

Are SIGMETs scheduled?

A

No

33
Q

For how long are SIGMETs normally valid?

A

4 hours

34
Q

For how long are SIGMETs concerning volcanic ash and tropical cyclones valid?

A

6 hours

35
Q

How often are SIGMETs reissued?

A

As long as conditions continue

36
Q

How large an area are SIGMETs issued for?

A
  1. 3000 square miles or

2. Area of significant operational impact

37
Q

What 5 types of conditions are SIGMETs issued for?

A
  1. Thunderstorms
  2. Severe turbulence
  3. Severe icing
  4. Widespread dust/sand storms
  5. Volcanic Ash
38
Q

How often are convective SIGMETs issued?

A

Hourly

39
Q

For how long are convective SIGMETs valid?

A

2 hours

40
Q

What types of weather or Convective SIGMETs issued for? (4 points)

A
  1. Severe Thunderstorms
  2. Wind 50KT or greater
  3. Hail 3/4in in diameter or greater
  4. Tornadoes
41
Q

How long a “line” are Convective SIGMETs issued for? And what percentage of thunderstorms must it contain?

A
  1. 60NM long

2. 40% containing thunderstorms

42
Q

How wide an area is a Convective SIGMET issued for?

A

3,000 square miles

43
Q

In order to issue a Convective SIGMET, severe/Embedded thunderstorms expected for ___ min or more.

A

30

44
Q

Are AIRMET advisories scheduled?

A

Yes

45
Q

AIRMETs are issued for ____ severe weather than SIGMETs

A

Less

46
Q

How long are AIRMETs valid for?

A

Up to 6 hours

47
Q

What are the 3 designators of an AIRMET?

A
  1. Sierra
  2. Tango
  3. Zulu
48
Q

What are AIRMET Sierras issued for?

A
  1. IFR weather and

2. extensive mountain obscuration

49
Q

What are AIRMET Tangos issued for?

A
  1. Moderate turbulence,
  2. surface wind less than 30 knots
  3. LLWS potential
50
Q

LLWS?

A

Low-level wind shear

51
Q

What are AIRMET Zulus issued for?

A
  1. moderate icing

2. moderate freezing levels

52
Q

In what circumstances is a CWA issued for a thunderstorm(s)? (4 points)

A

If the thunderstorm is

  1. Severe
  2. Embedded
  3. A line of storms
  4. An area of storms
53
Q

What are embedded thunderstorms?

A

huge, synoptic-scale precipitation area includes a few scattered thunderstorms

54
Q

synoptic-scale precipitation?

A

Precipitation with major storm systems that extends across areas as large as several Midwestern states.

55
Q

In what circumstances is a CWA issued for icing?

A
  1. If the icing is:
  2. Moderate
  3. Severe
56
Q

What 2 types of precipitation might generate a CWA?

A
  1. Heavy

2. Freezing

57
Q

What IFR ceiling and visibility conditions might generate a CWA?

A

Ceiling less than 500’ AGL and/or

Visibility less than 1 SM

58
Q

What surface wind speed might generate a CWA?

A

30 KT

59
Q

Can LLWS generate a CWA?

A

Yes

60
Q

Can a dust/sand storm generate a CWA?

A

Yes

61
Q

Can volcanic ash generate a CWA?

A

yes

62
Q

TMU?

A

Traffic Management Unit

63
Q

What two organizations use MISs

A
  1. ARTCC

2. TMU

64
Q

Are MISs scheduled?

A

no

65
Q

What time period can MISs be issued for?

A

Up to 2 days

66
Q

Do pilots use MISs?

A

No

67
Q

Are CWAs scheduled?

A

No

68
Q

How long are CWAs valid?

A

Up to 2 hours

69
Q

At what times are FBs issued?

A
  1. 0000
  2. 0600
  3. 1200
  4. 1800
70
Q

What are the 3 possible times that FBs can be valid until?

A
  1. 7
  2. 9
  3. 12

pointsixtyfive.com Basics Study Guide supplemental questions (30 decks)

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