Your vessel is participating in the Voluntary Observing Ship Program, at 1200 ZT on 31 August, your position is LAT 43°14'S, LONG 175°44'E. You are preparing WS Form B-80 as seen in illustration D041NG below. How should you encode the first three groups after the call sign if you estimate the wind?

Question

Accepted Answer

Option A: 31003, 99432, 31757. WMO ship weather codes require date-time-wind group 31003 for the 31st at 0000 UTC with estimated winds, quadrant/latitude group 99432 for 43°14'S, and longitude group 31757 for 175°44'E, perfectly aligning with standard VOS weather reporting formats.