🔍 Key Concepts

• Worldwide marine weather information sources used by professional mariners • Difference between local vs global weather products • Official hydrographic/nautical publications that list radio and weather services

💭 Think About

• Which option sounds like a formal, globally-used reference publication for mariners rather than a local or daily product? • Think about what an oceangoing vessel far from land would rely on to find which radio stations and frequencies to use for weather broadcasts. • Which choices are primarily for the general public, and which are designed specifically for international maritime navigation?

✅ Before You Answer

• Identify which choice is an official maritime reference used on ships, not a public media source. • Ask whether the source would cover all oceans and seas, not just one country or region. • Eliminate any option that is not regularly carried on commercial vessels for voyage planning and communications.