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General Study Flashcards

1
Q

Definition of METAR

A

Aviation routine weather report

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2
Q

Types of METAR

A

Routine - Scheduled report

SPECI - unscheduled report

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3
Q

Validity of METAR

A

1 hour, issued every 55 mins past the hour

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4
Q

When temp and dew point close,

A

Low vis & fog

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5
Q

AO2

A

Automated observation WITH precipitation discriminator

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6
Q

AO1

A

Automated observation WITHOUT precipitation discriminator

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7
Q

LTG

A

Lightning

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8
Q

$

A

Maintenance indicator

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9
Q

RAB05E30

A 
RA - Rain
B - Begins
05 - 5 mins past the hour
E - Ends
30 - 30 mins past the hour
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10
Q

TAF (Terminal Aerodrome Forecast)

A

Provide wx expected to occur btw 5NM around AD.

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11
Q

Validity of TAF

A

24hours, issued 4 times a day

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12
Q

FM

A

FROM

Rapid change in wx in a short period of time

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13
Q

BCMG

A

BECOMING

Gradual change in wx over short period

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14
Q

TEMPO

A

TEMPORARY

Temp wx condition during given period

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15
Q

PROB

A

PROBABILITY

Change indicated in %

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16
Q

FA (Area Forecast)

A

Covers general wx conditions over the wide region

Provides forecast for thunderstorms, precipitation, cloud heights & tops. Amount of clouds & surface winds 20kts or more

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17
Q

Validity of FA

A

18 hours, issued 3 times a day

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18
Q

Types of sections of FA

A

Header
Precautionary statement
Synopsis
VFR wx & clouds

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19
Q

FA - Header

A

Gives location, identities, date, time, validity, area of coverage

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20
Q

FA - Precautionary statement

A

Gives IFR conditions and mountains obscurations and thunderstorms

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21
Q

FA - Synopsis

A

Identifying of location, movement of fronts

22
Q

FA - VFR wx & clouds

A

Gives you sky condition, vis & weather

23
Q

Types of sky conditions

A

VFR
Cloud ceiling - >3000ft
Vis. - >5SM

Marginal VFR
Cloud ceiling - 1000 - 3000ft
Vis. - 3 - 5SM

IFR
Cloud ceiling - <1000ft
Vis. - <3SM

24
Q

Surface Analysis Chart

A

Shows location of High and Low pressures and Fronts and Isobaric lines

25
Validity of Surface Analysis Chart
3 hours
26
Radar Summary Charts
Represents areas of precipitation shows area of rain storm cells lines of thunderstorm
27
Cell of storms
Innermost - Extreme precipitation Near to core - Heavy precipitation Outside - Light to Moderate Precipitation
28
Validity of Radar Summary Charts
1 hour, issued 35mins past every hour
29
••
Light rain
30
•••
Moderate Rain
31
••••
Heavy Rain
32
Winds & Temperature aloft
Provides info of wind direction, speed & temp 9 levels available, from 3000ft to 39000ft
33
Validity of Winds & Temp aloft
Given on chart, issues 4 times a day
34
9900 means?
Light and variable wind
35
12000ft 251811
Wind direction 250 Wind speed 18kts Temp +11
36
39000ft 7501-62
Wind direction 75 - 50 = 250 Wind speed 01+100 = 101kts Temp -62
37
Significant weather prognostic chart
Used by a pilot to avoid Freezing levels Turbulence IFR conditions Marginal VFR
38
Validity of Significant weather prognostic chart
Given on chart, issued 4 times a day
39
Type of levels of Significant weather prognostic chart
High, Mid, Low
40
_/\_
Moderate turbulence
41
2 _/\_
Severe turbulence
42
3 _/\_
Extreme Turbulence
43
Convective outlook chart
For thunderstorm activities
44
Validity of Convective Outlook Chart
Given on chart, issued 5 times a day
45
AIRMET
Airman's Met Info Advises Significant weather, describe at LOWER INTENSITIES than SIGMET
46
Validity of AIRMET
Given on chart, issued every 6 hours
47
Types of AIRMET
S - for IFR conditions and mountain obscurations T - Turbulence and LLWS Z - Icing conditions & Freezing level altitudes
48
SIGMET
Advisories on NON CONVECTIVE weather Hazardous to all a/c ``` Associated with Hurricanes Severe icing conditions NOT associated with TS Dust Storms Volcanic Ash ```
49
Validity of SIGMET
4 hours If associated with Hurricanes, 6 hour
50
Convective SIGMET
Associated with TS, has surface wind >_50kts Hail >_3/4inch Dangerous to all a/c Includes: Tornadoes Squall Lines TS
51
Validity of Convective SIGMET
2 hours, issued every 55mins past the hour
52
Validity of various weather reports
METAR - 1 hour, issued 55mins past hr TAF - 24 hours, 4 times a day FA - 18 hours, 3 times a day Surface Analysis Chart - 3 hours Radar Summary Chart - 1 hour, issued 35mins past Winds & Temp Aloft - Given, issued 4 times a day Sig weather prog chart - Given, issued 4 times/day Convective Outlook Chart - Given, issued 5 times/d AIRMET - Given, issued every 6 hours SIGMET - 4 - 6 hours (Hurricanes) C-SIGMET - 2 hours, issued 55 mins past hr

CPL (1 decks)

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