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During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Dissipating. There are three phases to a thunderstorm, Cumulus stage (where the storm builds up), the Mature stage (greatest intensity, lots of updraft, rain hitting the ground), and the Dissipating stage (predominantly downdraft and the storm dies down).
Dissipating.
There are three phases to a thunderstorm, Cumulus stage (where the storm builds up), the Mature stage (greatest intensity, lots of updraft, rain hitting the ground), and the Dissipating stage (predominantly downdraft and the storm dies down).
See lessWhat conditions are necessary for the formation of thunderstorms?
High humidity, lifting force, and unstable conditions. Rote memory item: Thunderstorms need high humidity, lifting force, and unstable conditions.
High humidity, lifting force, and unstable conditions.
Rote memory item: Thunderstorms need high humidity, lifting force, and unstable conditions.
See lessWhat are the characteristics of stable air?
Poor visibility and steady precipitation. Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
Poor visibility and steady precipitation.
Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
See lessWhat are characteristics of a moist, unstable air mass?
Turbulence and showery precipitation. Unstable air is characterized by cumuliform clouds and fog, showery precipitation, rough air, and good visibility. Use the attached cheat sheet for reference.
Turbulence and showery precipitation.
Unstable air is characterized by cumuliform clouds and fog, showery precipitation, rough air, and good visibility. Use the attached cheat sheet for reference.
See lessA stable air mass is most likely to have which characteristic?
Poor surface visibility. Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
Poor surface visibility.
Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
See lessWhat are characteristics of unstable air?
Turbulence and good surface visibility. Unstable air is characterized by cumuliform clouds and fog, showery precipitation, rough air, and good visibility. Use the attached cheat sheet for reference.
Turbulence and good surface visibility.
Unstable air is characterized by cumuliform clouds and fog, showery precipitation, rough air, and good visibility. Use the attached cheat sheet for reference.
See lessWhat is a characteristic of stable air?
Stratiform clouds. Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
Stratiform clouds.
Stable air is characterized by stratiform clouds and fog, continuous precipitation, smooth air, and fair to poor visibility. Use the attached cheat sheet for reference.
See lessWhich conditions result in the formation of frost?
The temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dew point is below freezing. Frost occurs when two conditions are met: visible moisture and collecting surface is below freezing.
The temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dew point is below freezing.
Frost occurs when two conditions are met: visible moisture and collecting surface is below freezing.
See lessWhile operating around buildings, the Remote Pilot in Command should be aware of the creation of wind gusts that
change rapidly in direction and speed causing turbulence. Wind gusts between obstacles (such as buildings) can create turbulence and affect your flight.
change rapidly in direction and speed causing turbulence.
Wind gusts between obstacles (such as buildings) can create turbulence and affect your flight.
See lessWhat cloud types would indicate convective turbulence?
Towering cumulus clouds. Either Cumulonimbus or towering cumulus will be indicative of turbulence due to their extensive vertical development (and therefore updraft).
Towering cumulus clouds.
Either Cumulonimbus or towering cumulus will be indicative of turbulence due to their extensive vertical development (and therefore updraft).
See less