If your mercurial barometer reads 30.50 inches (1033 millibars) and the temperature is 56°F (13°C), what is the correct reading at 55°N, 150°W?

Correct Answer: Option B — 30.45 inches (1031 millibars)

Barometric pressure corrections for latitude and temperature are applied using standard meteorological tables found in Bowditch to standardize readings to sea level conditions.