Where is the primary means of obtaining a weather briefing?

The primary means of obtaining a weather briefing is from a briefer at the AFSS (Automated Flight Service Station) or FSS (Flight Service Station). This option is correct because these facilities are staffed by trained professionals who specialize in providing pilots with tailored weather briefings. They can deliver comprehensive and up-to-date information about weather conditions that specifically pertain to the planned route and any pertinent airspace considerations.

The briefers have access to the latest meteorological data, including radar imagery, METARs, TAFs, and other critical weather resources. They can also account for factors like pilot requests, specific flight plans, and unique local conditions, which often result in a more complete and relevant briefing than what other sources might provide.

While online weather websites, weather apps, and air traffic control can offer useful information, they may not always deliver the comprehensive level of detail required for safe flight operations. Websites and apps can provide general conditions, but they lack the personalized guidance and immediate feedback that a briefer at an AFSS/FSS can offer. Air traffic control primarily focuses on operational safety and traffic management rather than providing detailed weather briefings tailored to a pilot's specific flight needs.