General Navigation USCG Question #2150 (Set 66)

Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The dry bulb thermometer reads 54°F and the wet bulb thermometer reads 50°F. How would you encode the air temperature groups in the report?

USCG Exam Illustration D041NG
USCG Examination Diagram: Illustration D041NG
Official USCG Answer & Rule Citation

Correct Answer: Option B — 10122, 2008/

Converting 54°F (12.2°C) dry bulb and 50°F (10.0°C) wet bulb into Celsius and applying WMO VOS reporting increments generates groups 10122 and 2008/ following standard WS Form B-80 meteorological formatting protocols.

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