Weather services Flashcards

1
Q

What are Surface Aviation Weather Observations

A

Compilations of elements of the current weather at individual ground station across the United States

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2
Q

What is a Upper Air observation

A

Radiosonde observation, PIREPS, AMDAR,MDCRS.

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3
Q

What are the 4 different types of Radar observation?

A
  1. WSR-88D nexrad(DOPPLER RADAR)
  2. TDWR (Terminal Doppler Weather Radar)
  3. FAA Airport surveillance
  4. Airborne Radar
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4
Q

What is a WSR-88D NEXRAD DOPPLER

A

Provides in- depth observation that informs surrounding communities of impending weather.

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5
Q

What do upper air observations report

A

Air temp, Moisture, pressure, wind, direction

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6
Q

What is a Terminal Doppler Weather Radar?

A

Informs of severe weather, EX: Wind shear, gust front.

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7
Q

What does FAA Airport Surveillance Radar do?

A

Detects aircrafts and location and intensity of precipitation

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8
Q

What is a Airborne Radar?

A

Radar carried by aircrafts to determine precipitation

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9
Q

What is a satelite

A

an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication

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10
Q

What is the Flight Service Station (FSS)

A

Primary source of pre-flight weather information

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11
Q

What is Telephone Information Briefing Station (TIBS)

A

Automated telephone recording of meteorological and aeronautical infromation

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12
Q

What are the 3 different types of weather briefings

A
  1. Standard
  2. Abbreviated
  3. Occluded
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13
Q

What can a standard briefing provide

A

Provides the most complete information and a more complete weather picture. Should be done prior to flight

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14
Q

What is a Abbreviated Briefing

A

Shortened version of the standard brief usually requested when delayed or need weather update

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15
Q

What is an occluded brifeing

A

Occluded Briefing are requested when departure is 6 hours or greater.
provides initial forecast

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16
Q

What are the 2 types of Aviation Weather Reports

A

Meteorological Terminal Air Report (METAR)

Pilot Weather Reports (PIREPS)

17
Q

what is a METAR

A

Observation of current weather reported in standard international format

18
Q

What is a PIREP’S

A

Provide weather reports which can not be gather from another source.

19
Q

What is a Terminal Aerodrome forecast (TAF)

A

Report established for the the 5 mile radios of the airport

20
Q

How long is each TAF valid for and issued

A

Valid:24 hours/ 30 hours
issued: every 6 hours 4 times a day 00,0600,1200,1800

21
Q

What is a inflight Weather advisories and what are them

A

Forecast that detail potentially hazardous weather
Airmet
sigmet
convective sigmet

22
Q

AIRMET VALIDITY AND ISSUE

A

ISSUED: EVERY 6 HOURS
VALID: 6 HOURS

23
Q

SIGMET VALIDITY AND ISSUE

A

ISSUED: AS NEEDED
VALID: 4HRS FOR VOLCANIC ASH, 6HRS FOR TROPICAL STORMS

24
Q

CONVECTIVE SIGMET VALIDITY AND ISSUE

A

ISSUED: HOURLY + 55 MIN
VALID: UP TO 2 HRS

25
what is the Center Weather Advisory (CWA)
Aviation weather warning for conditions meeting or approaching national in flight advisory (AIRMET,SIGMET, CONV SIGMET
26
What are Winds and Temps aloft forecast
computer-prepared forecast of wind direction, wind speed, and temperature at specified times
27
What is a Surface analysis chart
shows current surface weather.
28
What is a weather depiction chart
details surface conditions as derived from the metar.
29
What is a Significant weather prognosis chart
Low level significant weather charts from FL250-FL630 for VFR pilots.