How often is a METAR typically updated?

A METAR report is typically updated every hour. This consistent hourly update provides pilots and meteorologists with the most current weather information that is necessary for flight operations and safety. The hourly frequency allows for me to reflect changes in weather conditions promptly, ensuring that any crucial shifts, such as visibility alterations or sudden changes in wind patterns, are communicated effectively to those in the aviation community.

The other options suggest more frequent updates, like every 30 or 15 minutes, which are not standard for METAR reports. While special reports called SPECI can be issued for significant changes at any time, the regular METAR updates are established on an hourly basis. Additionally, a two-hour frequency would not meet the needs for up-to-date weather conditions critical for flight safety. Hence, the hourly update interval is specifically established to balance timely information delivery with practical reporting capabilities.