OUPV Weather Interpretation and Forecasting 2

Question 1

What type of cloud formation indicates potential thunderstorm development?

Accepted Answer

Towering cumulonimbus clouds with an anvil top

Answer

Cumulonimbus clouds with vertical development and an anvil-shaped top indicate a mature thunderstorm.

Question 2

What does a steady barometer reading typically indicate?

Accepted Answer

Continuation of current weather conditions

Answer

A steady barometric pressure generally indicates that current weather conditions will persist.

Question 3

What is a NOAA Weather Radio and why is it important for OUPV operations?

Accepted Answer

A continuous broadcast of weather information, forecasts, and warnings for marine areas

Answer

NOAA Weather Radio provides continuous broadcasts of marine weather observations, forecasts, and hazard warnings.

Question 4

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

Accepted Answer

High cirrus or cirrostratus clouds, often indicating an approaching warm front and rain within 24-48 hours

Answer

A halo is caused by ice crystals in high cirrus or cirrostratus clouds, which often precede an approaching warm front.

Question 5

What is the significance of wind backing and lowering clouds?

Accepted Answer

Deteriorating weather with a low-pressure system approaching

Answer

A backing wind combined with lowering cloud ceilings indicates a low-pressure system is approaching with deteriorating weather.

OUPV - Operator Uninspected Passenger Vessel Practice Test