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 78°F and the wet bulb thermometer reads 75°F. How would you encode the air temperature groups in the report?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 10256, 2023/
World Meteorological Organization VOS program guidelines require converting Fahrenheit to Celsius, multiplying by ten, and encoding positive temperatures with a leading indicator of '1'. Dry bulb 78°F (25.6°C) and wet bulb 75°F (23.9°C) translate into groups 10256 and 2023/.
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