Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Weather Module 5 > International Data > Flashcards

International Data Flashcards

1
Q

List the different types of international alphanumeric current and forecast data:

A
  • Metar
  • TAF
  • Sigmet
  • Airmet
  • Pirep
  • Area Forecast
  • Upper Winds
  • Convective outlook
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What 2 items aren’t contained in american metars?

A

Wind shear and Recent codes

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

In an American METAR, a routine obs can be between ______ and _____

A

H+45 and H

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

An M preceding the visibility value means?

A

Less than

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

Automated stations without a precipitation descriptor are identified as _____

A

A01

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

Automated stations with a precipitation descriptor are identified as _____

A

A02

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

What does the peak wind in the metar signify?

A

the maximum instantaneous wind speed since the last METAR that exceeded 25kts

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

What will lightning be shown as on the metar based on its distance?

A

A. wtn 5 NM of ALP will be TS
B. btn 5-10 NM VCTS
C more than 10 but <30 NM will be reported as LTNG DSNT in remarks with direction.

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

What is the definition of ALP?

A

Airport Location point

The permanent reference point defined by the latitude and longitude published in the Airport facility directory

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

What are the 4 different types of lightning strikes reported?

A

CG
IC
CC
CA

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

What is the value for frequent lightning?

A

FRQ: 1-6 flashes a minute

OCNL, CONS

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

With the beginning and ending of precip, are the coded remarks required in SPECI?

A

no

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

At locations where SPECIs are not taken what is the remark?

A

NO SPECI

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

For snow increasing rapidly, what is the remark used and what is the measurement?

A

SNINCR and its formatted in inches fallen/inches on the ground

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

The hourly precipitation amount is coded in

A

Hundreds of an inch. 0000 = trace

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

What does CAVOK need?

A
  • no cloud below 5000ft, or MSA whichever is higher and no CB
  • Vis 6 or more
  • No precip, TS, shallow fog or drifting snow
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What additional data is included in certain military base forecasts?

A
  • lowest altimeter for a certain period
  • Icing layer
  • turbulence layer
  • Max and min forecast temperature
  • nature of observation (human or automated)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The US area forecast must be used in conjunction with:

A

Airmet Sierra bulletin (IFR)

19
Q

FAs are issued ___ times a day for each of the ___ areas of the contiguous US plus _______

A

-3
-6
Gulf of Mexico and Caribbean

20
Q

the FA consists of:

A
  • A 12 hour forecast plus a 6 hour outlook
  • Synopsis section
  • VFR clouds and weather section
21
Q

The alaskan FAs are issued ____ times daily

A

4

22
Q

The description of forecast weather in American FAs differs from canadian FAs in the following ways:

A
  • Areas of cloud and weather are described for each state without reference to a synoptic system
  • Cloud bases are given as in METARs
  • Cloud tops are only given for BKN or OVC layers and only the highest layer
  • Vis below 3 are only given in associated airmet sierra
23
Q

For the contiguous 48 states, the location of weather phenomena will be stated with respect to:

A

2 letter state identifiers and delineated by VORs

24
Q

Convective sigmet bulletins are issued at:

A

hour +55

25
Q

How long are convective sigmets valid for?

A

2 hours, followed by a 2-6 hour outlook

26
Q

What are the 4 criteria for issuing a convective sigmet?

A
  • Severe thunderstorm
  • embedded thunderstorms
  • Line of thunderstorms
  • Intense thunderstorms
27
Q

Non convective sigmets are valid for:

A

a maximum of 4 hours

28
Q

What are the 4 criteria for a non convective sigmet?

A
  • Severe icing
  • Severe or extreme turbulence
  • duststorm or sandstorm reducing vis below 3
  • Volcanic ash
29
Q

remind the pilot that another briefing may be advisable , especially if any of the following applies:

A
  • Time of departure is more than 4 hours away
  • Complete briefing was not provided
  • the time between the briefing and the ETA is more than 4 hours
30
Q

What is the function of an american airmet?

A

It advises of weather, other than convective, that may be hazardous to single engine and other light aircraft conducting VFR flight.

31
Q

what are the 3 american airmets?

A 
Airmet Sierra (IFR conditions)
Airmet Tango (Turbulence)
Airmet Zulu (Icing)
32
Q

how many times are american airmets issued daily and how long are they valid for?

A

issued 4 times, valid for 6 hours plus a 6 hour outlook.

33
Q

Airmet Sierra is issued for:

A
  • Ceilings less than 1000ft and/or vis less than 3 miles affecting over 50% of an area
  • Extensive mountain obscuration
34
Q

Airmet Tango is issued for:

A
  • Moderate turbulence

- Sustained surface winds of 30kts or more

35
Q

Airmet Zulu is issued for

A
  • Moderate Icing

- Freezing levels

36
Q

If the criteria is not met, will an airmet still be issued?

A

yes!

37
Q

What are the differences between canadian and international pireps

A
  • Indicators are coded for WX
  • Flight visibility will be the first entry in the WX field
  • Different abbreviations may be used
38
Q

International FBs represent forecast winds over the world for every _____ degree of latitude and longitude

A

5

39
Q

What is the difference between the FB and FD bulletins?

A

FB has 3 digits for the wind speed, and negative temps are indicated by the letter M rather than a -

40
Q

The US convective outlook is a ______ day outlook

A

3

41
Q

Note the following with regards to american pirep codes

A
  • useful cloud and weather information is under /sk /wx
  • miscoding is common
  • Not all fields may be reported
  • it can be helpful to have a list of identifiers nearby
42
Q

The 5 risk categories in the convective outlook are:

A
  • No significant thunderstorms
  • General thunderstorms
  • Slight Risk
  • Moderate Risk
  • High risk
43
Q

Users can assess from the data from the convective outlook:

A
  • Geographic areas where severe weather is expected to occur
  • perceived levels of threat
  • Areas where extreme severe weather is expected.

Weather Module 5 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions