Flashcards in Aviation Wx Reports and Observations Deck (3)
What is a METAR and what are the two types?
A METAR is an hourly surface observation of conditions observed at an airport. There are two types of METAR reports. A routine METAR report that is transmitted every hour and an aviation selected wx report (SPECI). This is a special report that can be given at any time to update the METAR for rapidly changing wx conditions.
Describe several types of wx observing programs available.
- Manual Observations: reports from airports location FAA personnel who manually observe, perform calculations, and enter thier observations into the communication system.
- AWOS: Automated Weather Observing System. consists of various sensors, a processor, and computer generated voice sub-system and a transmitter to broadcast local, minute-by-minute wx data directly to the pilot.
- ASOS: Automated Surface Observing System is the primary US surface wx observing systems. AWOS provides continuous minute-by-minute observations that generate METAR's and other aviation wx information.