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What 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 lessThe suffix "nimbus," used in naming clouds, means
a rain cloud. This is a rote memory item. Nimbus means rain.
a rain cloud.
This is a rote memory item. Nimbus means rain.
See lessWhat types of fog depend upon wind in order to exist?
Advection fog and upslope fog. Advection fog requires wind since the moist warm air mass needs to be pushed in land. Upslope fog also requires wind since the air mass must be pushed upslope to be cooled off.
Advection fog and upslope fog.
Advection fog requires wind since the moist warm air mass needs to be pushed in land. Upslope fog also requires wind since the air mass must be pushed upslope to be cooled off.
See lessLow-level turbulence can occur and icing can become hazardous in which type of fog?
Steam fog. One of the characteristics of steam fog is the possibility of icing and low-level turbulence.
Steam fog.
One of the characteristics of steam fog is the possibility of icing and low-level turbulence.
See lessWhat situation is most conducive to the formation of radiation fog?
Warm, moist air over low, flatland areas on clear, calm nights. Radiation fog occurs when the ground cools rapidly and the surrounding air reaches the dew point. This happens with little to no winds.
Warm, moist air over low, flatland areas on clear, calm nights.
Radiation fog occurs when the ground cools rapidly and the surrounding air reaches the dew point. This happens with little to no winds.
See lessAn air mass moving inland from the coast in winter.
An air mass moving inland from the coast in winter. Advection fog occurs when a layer of warm, moist air moves over a cold surface. This is typical in coastal areas with sea breeze, especially in the winter when the land is colder than the sea. Think about the famous San Francisco fog.
An air mass moving inland from the coast in winter.
Advection fog occurs when a layer of warm, moist air moves over a cold surface. This is typical in coastal areas with sea breeze, especially in the winter when the land is colder than the sea. Think about the famous San Francisco fog.
See lessWhat clouds have the greatest turbulence?
Cumulonimbus. Cumulonimbus are always the worst clouds to get near or into.
Cumulonimbus.
Cumulonimbus are always the worst clouds to get near or into.
See less