USCG Meteorology and Weather

Question 1

What does a rapidly falling barometer (more than 0.06 inches per hour) typically indicate?

Accepted Answer

An approaching storm or severe weather

Answer

Improving weather conditions

Answer

Fog formation

Answer

High pressure system arrival

Question 2

A wind rotating counterclockwise in the Northern Hemisphere is associated with which type of pressure system?

Accepted Answer

Low pressure (cyclone)

Answer

High pressure (anticyclone)

Answer

A stationary front

Answer

A sea breeze

Question 3

What type of fog forms when warm moist air moves over colder water?

Accepted Answer

Advection fog

Answer

Radiation fog

Answer

Steam fog

Answer

Upslope fog

Question 4

The Beaufort Scale is used to measure what?

Accepted Answer

Wind force and speed

Answer

Barometric pressure

Answer

Sea wave height

Answer

Visibility distance

Question 5

What is a 'small craft advisory' issued for?

Accepted Answer

Winds 15–33 knots or seas 5–7 feet

Answer

Winds 34–47 knots or seas 8–12 feet

Answer

Winds above 64 knots

Answer

Winds below 10 knots

Question 6

What weather phenomenon is indicated by a halo around the sun or moon?

Accepted Answer

Precipitation likely within 24–48 hours

Answer

Fog approaching within 12 hours

Answer

A high pressure system building

Answer

Clear skies for 48 hours