How does a frontal cyclone draw its energy?

How does a frontal cyclone draw its energy?

• A. Cold air mass
• B. Humid air
• C. Warm air mass
• D. Dry air

Answer: (C)

Frontal cyclones draw energy from the warm, moist air that rises along a front. The warm air is buoyant and climbs over cooler air, and as it rises it cools and its water vapor condenses. That condensation releases latent heat, which fuels the storm and strengthens the circulation. So the energy source is the warm air mass (the moisture it carries facilitates the latent-heat release that powers the system). Humid air alone doesn’t provide heat, dry air lacks moisture for latent-heat release, and a cold air mass isn’t the energy source driving the cyclone.

Frontal cyclones draw energy from the warm, moist air that rises along a front. The warm air is buoyant and climbs over cooler air, and as it rises it cools and its water vapor condenses. That condensation releases latent heat, which fuels the storm and strengthens the circulation. So the energy source is the warm air mass (the moisture it carries facilitates the latent-heat release that powers the system). Humid air alone doesn’t provide heat, dry air lacks moisture for latent-heat release, and a cold air mass isn’t the energy source driving the cyclone.