Remote Pilot – Small Unmanned Aircraft Systems › III. Weather › Task A. Sources of Weather

UA.III.A.K2

Knowledge

Aviation routine weather reports (METAR).

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Pilot's Handbook of Aeronautical Knowledge p. 13-5
Chapter 13: Aviation Weather Services › Aviation Weather Reports › Aviation Routine Weather Report (METAR)
significant weather changes have occurred. A special METAR (SPECI) can be issued at any time between routine METAR reports. Example: METAR KGGG 161753Z AUTO 14021G26KT 3/4SM +TSRA BR BKN008 OVC012CB 18/17 A2970 RMK PRESFR A typical METAR report contains ... sequential order: 1. Type of report—there are two types of METAR reports. The first is the routine METAR report that is transmitted on a regular time interval. The second is the aviation selected SPECI. This is a special report…
Remote Pilot - Small Unmanned Aircraft Systems Study Guide p. 15
Chapter 3a: Aviation Weather Sources › Aviation Weather Reports › Aviation Routine Weather Report (METAR)
Some typical reports are METARs and PIREPs. To view a weather report, go to http://www.aviationweather.gov/. Aviation Routine Weather Report (METAR) A METAR is an observation of current surface weather reported in a standard international format. METARs are issued…
Aeronautical Information Manual p. 7-1-64
Chapter 7. Safety of Flight › Section 1. Meteorology › 7-1-28. Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR)
addition, turning maneuvers increase stress on the aircraft. 7-1-28. Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR) FIG 7-1-22 Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR) (Front) FM091930 30015G25KT…
Aviation Weather Handbook p. 24-5
24 Observations › 24.2 Surface Observations › 24.4.1 Aviation Routine Weather Report (METAR)
Aviation Routine Weather Report (METAR) A METAR includes the airport identifier, time of observation, wind, visibility, Runway Visual Range (RVR), present weather phenomena, sky conditions, temperature, dewpoint, and altimeter setting. Excluding the airport identifier and the time of observation, this ... routinely produced near the top of the hour. 24.4.2 Aviation Selected Special Weather Report (SPECI) A SPECI is an unscheduled report taken when any of the criteria given in Table 24-2 are observed during the period between hourly reports…