Weather Forecasts Flashcards

1
Q

Destination Aerodrome Forecast’s (TAF/TTF) are mandatory for IFR flights and must be valid….

A

30 mins before and 60 mins after planned ETA.

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

If forecasts cannot be obtained then an IFR flight may depart without provided he is satisfied the departure the weather will permit a safe return within 1 hour of departure, PROVIDED

A

Updated forecast information must be accessed within 1 hour of departure.

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

Area Forecasts (ARFOR) for operations below

A

FL 200

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

The ARFOR cloud datum and validity required for a flight?

A

Cloud datum is MSL
AND
Must be valid for entire flight

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

Terminal Aerodrome Forecast (TAF)

A

• Valid for airspace within 5nm of center of aerodrome runway complex

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

TAF

A
  • Used to determine alternate requirements

* Cloud datum is aerodrome elevation

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

TAF

A
  • Must be valid for 30 minutes before and 60 minutes after planed ETA
  • 30 minute buffers apply to INTER/TEMPO or FM periods
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Trend Type Forecast (TTF)

A

• Valid for airspace within 5nm of center of aerodrome runway complex

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

TTF

A

• Valid for 3 hours from time of observation
AND
• Replaces TAF for period of validity

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

TTF

A

Replaces TAF for its period of validity

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

Meteorological Reports and Advisories

A
METAR
SPECI
AIREP
SIGMET
AIRMET
Hazard Alerts
Approved observer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

INTER

A

Used to indicate changes in prevailing conditions of less than 30 minutes

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

INTER

A

If changes below alternate minima 30 minutes holding or alternate is required

For TAF, 30 minute buffers apply either side of validity

If ETA is in buffer after the period only sufficient fuel to exit the buffer required

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

TEMPO

A

Used to indicate changes in prevailing conditions of less than 60 minutes

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

TEMPO

A
  • If changes below alternate minima 60 minutes holding or alternate is required
  • For TAF, 30 minute buffers apply either side of validity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

TEMPO

A

If ETA is in buffer after the period only sufficient fuel to exit the buffer required

17
Q

FM

A

Indicates a significant change in forecast conditions from this time (Jep 7.6)

18
Q

FM

A

If change reduces conditions a buffer is applied 30 minutes before time of change

19
Q

FM

A

• If change improves conditions a buffer is applied 30 minutes after time of change

20
Q

FM

A

• If arrival time is during the FM or buffer periods and the change reduces below alternate minima an alternate required

21
Q

Thunderstorms

A
  • If thunderstorms forecast fuel for alternate required; or
  • If endorsed with INTER or TEMPO sufficient holding fuel (30 or 60 minutes)
  • Same buffer rules apply as per INTER & TEMPO