Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. You are hove to in a hurricane on a heading of 328°T. The wind is from 030° true at 119 knots. How should this be encoded on the weather report form?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 80399
WMO FM 13 SHIP code format requires specific indicator groups for weather reports. Wind speeds exceeding 99 knots utilize the standard 99 indicator group combined with the true wind direction and speed units offset per WMO meteorological reporting standards.
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