Your Synoptic Report
It’s approaching 1800Z and you need to report a synoptic observation from the Kearsarge. You have turned back southward and are currently underway in the Davis Strait to the west of Greenland. You have completed all your observations and are ready to file your 1800Z synoptic report.
Encode your observations using the appropriate Synoptic Code Message Format described on the previous page and in Section III, Chapters 2-3 of the U.S. Navy Manual for Ship’s Surface Weather Observations, COMNVMETOCCOMINST 3144.1E.
Here are your observations from 1753Z onboard the Kearsarge:
Air temperature: 10.9 °C
Dewpoint temp: 1.1 °C
Wet bulb: 7.14 °C
Sea level pressure: 29.328 in Hg, falling
Winds: 10 knots, WNW
Seas: Wind waves, 0.5 feet, 2 sec, WNW
Predominant swell: 5 feet, 12 sec, SW
Secondary swell: 2 feet, 6 sec S
Sky Condition, Visibility, Present Weather: ⅞ sky cover stratocumulus with ceilings about 600 feet; 1/8 sky cover altostratus 11,000 ft; overcast conditions with occasional light rain showers at the ship.
Previous obs: occasional rain showers observed within last 6 hours, sky cover broken to overcast, visibilities restricted due to low clouds (2/8 nm).