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 30°F (-1°C) and the wet bulb thermometer reads 28°F (-2°C). How would you encode the air temperature groups in the report?

Question

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 30&deg;F (-1&deg;C) and the wet bulb thermometer reads 28&deg;F (-2&deg;C). How would you encode the air temperature groups in the report?

Accepted Answer

Option C: 11011, 2104/. Voluntary Observing Ship (VOS) meteorological coding procedures convert Fahrenheit temperatures to Celsius and encode tenths. Dry bulb 30°F (-1.1°C) and wet bulb 28°F (-2.2°C) format into groups 11011 and 2104/ per WMO weather reporting standards.