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MET Key Facts > Met Infomation > Flashcards

Met Infomation Flashcards

1
Q

Significant weather charts shows us

A

Jet streams/CAT/Sig Cloud/Icing/Turbulence/Tropopause level/Volcanic Activity

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2
Q

Low Level Significant Weather Chart is valid for/height

A

9 hours - SFC to FL100

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3
Q

Upper Wind Charts - Height

A

FL240 upwards

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4
Q

Volcanic Ash Advisory Centres

A

9 Regions
Advise on volcanic ash/pre eruptions activity
Info used by MWO for SIGMET

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5
Q

World Area Forecast Centres

A

Produce Significant weather charts
London/Washington

Put areas into blocks NWP for forecasting

6/9 hours

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6
Q

Metrological Offices

A

Produce Aerodrome forecasts and briefing

TAFS
GAMET
NOTAMS
METARs

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7
Q

Metrological Watch Offices
MWOs

A

Provide weather information for FIR

SIGMET
AIRMET
ASHTAM

Any relevant changing information

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8
Q

Meteorological Services

A

Observe local weather and report on it

METAR
SPECI
Trend/Landing forecast in next 2 hours
SNOWTAM

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9
Q

Tropical cyclone warning centres

A

Monitor the development of tropical cyclones and advise oNLY

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10
Q

En route reporting would be:

A

ATIS
D-ATIS
VOLMET - METARS/SPECI/TRENDS on VHF + TAFS/SIGMETS on HF

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11
Q

METARS - reporting time/what it provides

A

30 minutes usually can be 60 minutes

Trends/landing conditions in next 2 hours

QNH rounded down/temp rounded up

Up to date every minute/10 minutes averaged on METAR

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12
Q

BL

A

Blowing

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13
Q

PR

A

Banks of fog

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14
Q

ML

A

Shallow Fog

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15
Q

NSC

A

No significant cloud

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16
Q

CAVOK

A

10km or more visibility
No cloud below 5000ft
No CB or sig weather

17
Q

Runway State (8 figure code)

A

TED B

RW designator

Type of deposit
Extent
Depth of deposit
Braking action

18
Q

SPECI

A

Issued between METAR when significant change

19
Q

GAMET

A

General aviation in the region weather

Low level/Issue when required
Written in plain English

20
Q

AIREP

A

Routine air report
Metrological report from AC via datalink

Wind direction/speed/turbulence/cloud etc

21
Q

PIREP

A

Special Air Report

Pilots reporting of severe hazards

Mod serve turbulence
Mod serve icing
Severe mountain waves
Thunderstorms
Heavy dust storms/sandstorm
Volcanic ash/volcanic activity

22
Q

SIGMET Reports

A

Pilot to ATS to WMO

Severe turbulence and icing/TS/Squall Lines/tropical cyclones/MTW/sandstorms

4 hours usually
6 hours when volcanic ash/TRS

23
Q

AIRMET reports MWO

A

Warnings below FL100 (FL150 in mountains)

Valid for 4 hours
Moderate turbulence and icing
CB or TCU
Cloud ceiling
Moderate mountain waves
Surface visibility below 5000m

Basically anything not as severe as SIGMET

24
Q

Aerodrome Warnings

A

Info relating to vehicles/facilities on ground

Valid for 6 hours

Can include:
Gales
Strong wind warnings
Thunderstorms/hail
Snow
Frost warning
Fog
Freezing rain
Dust storms
Tsunami
Volcanic ash

25
Q

Numerical Weather Prediction model shows what

A

FL050 to FL630

Air temp
Humidity
Wind direction and speed
Temperature of the tropopause
Wind speed/wind direction/flight level
Geo potential altitude of the flight levels
CB/turbulence/icing

26
Q

Significant weather chart Mid level FLs

A

FL100 to FL450

27
Q

Low level SWC FLs

A

SFC to FL100

28
Q

Trend signify

A

Landing forecast added to the actual weather report

29
Q

A special air report comprises of the following to begin with

A

Aircraft identification
Position or latitude/longitude
Time
Level or range of levels

30
Q

ATIS surface wind average time

A

2 minutes

Compared to METAR which is 10 minutes

31
Q

Upper wind and temperature chart have a constant what

A

Pressure is constant all over the chart

Charts issues for different pressure altitudes

32
Q

Low drifting sand

A

When sand has been raised by wind but does not obscure visibility at eye level and it less than 6ft

33
Q

Shallow Fog (ML) vertical extent

A

Does not obstruct horizontally more than 6ft

MET Key Facts (25 decks)

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