AB Meteorology and Weather Observation Flashcards
6 cards from real AB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 AB Meteorology and Weather Observation flashcards as text
In the Northern Hemisphere, winds circulate around a high-pressure system in which direction?
Answer: Clockwise
In the Northern Hemisphere, winds circulate clockwise around high-pressure (anticyclonic) systems due to the Coriolis effect.
What is the most dangerous hazard associated with a landfalling tropical cyclone?
Answer: Storm surge
Storm surge—the dome of ocean water pushed ashore by hurricane-force winds—is the deadliest hazard of a landfalling tropical cyclone.
What does 100% relative humidity indicate?
Answer: Air is saturated; fog or precipitation is likely
At 100% relative humidity, the air is fully saturated, meaning the dew point equals the air temperature and condensation is imminent.
Which cloud type is associated with thunderstorms and severe weather?
Answer: Cumulonimbus
Cumulonimbus clouds are towering convective clouds associated with thunderstorms, lightning, heavy rain, and sometimes hail.
What do 'isobars' represent on a weather chart?
Answer: Lines connecting points of equal atmospheric pressure
Isobars are lines drawn on a weather chart connecting points of equal atmospheric pressure, revealing pressure gradients and circulation patterns.
What does a 'line squall' typically indicate?
Answer: A sudden violent storm along an advancing cold front
A line squall is a narrow band of sudden, violent weather—strong winds, heavy rain, and wind shifts—that accompanies an advancing cold front.