The service transmits daily marine weather summaries and forecasts, including satellite cloud cover images, wave heights, wind velocities and much more.ĭuring my around-the-world solo sail I received weather charts using the setup shown in Figure 2 on this page - a shortwave receiver, a fax demodulator box, a laptop, and a printer to render the charts. This service, variously called "weatherfax" or "HF radiofax", has worldwide coverage (other countries have similar services) and is ideal for ships at sea or anyone in a remote location. National Weather Service provides weather charts by way of shortwave radio. ![]() Figure 2: Printing a weather chart while underwayĭuring my solo circumnavigation, 1988-1991įor the benefit of those who need marine weather information but are unable to access the Internet, the U.S.
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