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Pilot Knowledge > Aviation Weather Services > Flashcards

Aviation Weather Services Flashcards

You may prefer our related Brainscape-certified flashcards:
Charter Pilot (Part 135) - Oral flashcards
1
Q

What does this Wind Barb indicate?

A

270@65kts

Pennant = 50
Long line = 10
Short line = 5
Circle = 0

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2
Q

What is the primary source for preflight weather information? How can they be reached?

A

Flight Service Station

1-800-WXBRIEF
or
www.1800wxbrief.com

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3
Q

Only available in Alaska, this weather information source is a recorded broadcast over selected L/MF and VOR facilities

A

Transcribed Weather Broadcast (TWEB)

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4
Q

FIS-B

A _______ __________ _____ _____ service provided through the ______ service network. Some information available on it is…

A

Flight Information Services-Broadcast

ground information data link
ADS-B

-METAR, TAF, NEXRAD
-AIRMETs, SIGMETs, convective SIGMETs
-TFRs, Special use airspace updates -NOTAMs
-PIREPs

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5
Q

ATIS

A continuous broadcast of…

Updated _______, normally ___ minutes past the hour.

Special updates issued _______ the regular hourly cycle when needed.

ATIS is published over the radio and, in locations with _______, via data link (______).

A

Automatic Terminal Information Service

local weather and NOTAMs

hourly
55

outside

D-ATIS
ACARS

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6
Q

AWOS

Automated weather reporting system that broadcasts weather data and is updated _______.

A

Automated Weather Observing System

hourly

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7
Q

ASOS

More sophisticated than AWOS, a weather reporting system that broadcasts surface observations updated by the _______.

A

Automated Surface Observing System

minute

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8
Q

What are the different types of weather briefings?

A

Standard

Abbreviated

Outlook

Inflight

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9
Q

What is a Standard weather briefing?

A

A full briefing

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10
Q

What is an Abbreviated weather briefing?

A

A shortened version of the standard briefing

Update to a standard briefing

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11
Q

What is an Outlook weather briefing?

A

For departures 6 or more hours away

Used for flight planning

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12
Q

Who would you contact for an Inflight weather briefing?

A

Flight Service Station

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13
Q

What is an AIRMET?

A
  • An advisory of significant weather less intense than what’s required to issue a SIGMET. May affect all aircraft but especially small aircraft
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14
Q

How long is an AIRMET valid for?

A

6 hours

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15
Q

What are the different types of AIRMETS?

A

Sierra - IFR, mountain obscuration

Tango - moderate turb, surface winds 30 or greater,
non-convective LLWS

Zulu - moderate icing, freezing levels

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16
Q

What is a SIGMET?

A

An unscheduled advisory of non-convective weather potentially hazardous to all aircraft

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17
Q

AIRMETs advise of weather potentially…

A

hazardous to light aircraft and aircraft with limited operational capabilities.

18
Q

How long is a SIGMET valid for?

What about a SIGMET for a hurricane?

A

4 hours

6 hours

19
Q

A SIGMET is issued when the following is expected to occur:

A
  • Severe icing not associated with t-storms
  • Severe or extreme turbulence or Clear Air Turbulence not associated with t-storms
  • Dust storms or sandstorms that lower inflight or ground visibility below 3 miles
  • Volcanic ash
20
Q

What is a Convective SIGMET?

A

An inflight advisory of convective weather significant to the safety of all aircraft.

21
Q

Convective SIGMETs are issued _______ at ____ minutes past the hour for the western (W), eastern (E) and central (C) U.S.

A

hourly
55

22
Q

How long are Convective SIGMETs valid for?

A

2 hours

23
Q

On a METAR, what does AO2 mean?

A

Automated station with precipitation discriminator

24
Q

What does “SLP201” mean on a METAR?

A

Sea-level pressure

1020.1 millibars

25
Q

What does “SLP954” mean on a METAR?

A

Sea-level pressure

995.4 millibars

26
Q

A Convective SIGMET contains either an ___________ and a __________ or only a __________.

A

observation and a forecast

forecast

27
Q

What does the COR modifier on a METAR mean?

A

A corrected report has been issued to replace an earlier report that had an error

28
Q

What does the COR modifier on a METAR mean?

A

A corrected report has been issued to replace an earlier report that had an error

29
Q

What does R35LVR4500FT mean on a METAR?

A

Runway 35L visual range is 4,500 feet

30
Q

What does VC mean on a METAR?

A

Vicinity

Within 5 to 10 miles of the point of observation

31
Q

What does VV008 on a METAR mean?

A

Vertical Visibility is 800 feet

32
Q

RAB05 on a METAR?

SNE20?

A

Rain began at 5 minutes after the hour

Snow ended at 20 minutes past the hour

33
Q

RAB05 on a METAR?

SNE20?

A

Rain began at 5 minutes after the hour

Snow ended at 20 minutes past the hour

34
Q

The Terminal Aerodrome Forecast (TAF) is a forecast for weather conditions within a _____ radius from the center of a selected airports runway complex. Is issued _____ times a day at 00, 06, 12, and 18 Zulu for a ____ or ____ hour time period.

A

5 sm
four
24 or 30

35
Q

What does WS020/35035KT mean on a METAR/TAF?

A

Wind shear at 2,000 feet, wind from 350 at 35 knots

36
Q

Is VV008 considered a ceiling?

A

Yes

37
Q

Forecast Change Indentifiers

FM = ______. A rapid, significant change is expected occurring in less than ____ hour

BECMG = ________. Gradual change expected occurring for less than _____ hours

TEMPO = _________. Temporary fluctuations expected to last for less than ____ hour during less than _____ of the time period

A

From
one

Becoming
two

Temporary
one
half

38
Q

Winds at BIH at 9,000 feet?

BLH at 30,000 feet?

FAT at 6,000 feet?

A

BIH = 130 at 12kts, -2*C

BLH = 230 at 66kts, -42*C

FAT = 130 at 8kts, 8*C

** Minus sign is omitted above 24,000 feet**

39
Q

What are winds and temp at JAX at 34,000 feet?

A
40
Q

What are the winds and temp at BIH at 6,000 feet?

A
41
Q

What does this mean in the remarks section of a METAR?

56012

52022

54045

A

First Number:
5 = atmospheric pressure

Second Number:
123 = increasing pressure in last 3 hrs
4 = pressure stayed the same
5678 = pressure decreased in last 3 hrs

Last two numbers are the amount. 12 = .12

Pilot Knowledge (18 decks)

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