Meteorology
Weather systems, hazards, forecasts, and atmospheric behaviour for pilots.
41 concepts6 recently updated
Most frequently examined
Advection fog forms when warm, moist air moves horizontally over a colder surface, cooling the air to its dew point and causing condensation....Altimeter setting procedures ensure that the aircraft's altimeter displays the correct reference—height above ground, altitude above mean sea...Altocumulus and altostratus are the primary middle-level cloud types found between 6,500 and 16,500 feet above ground level. Altocumulus...The Earth's atmosphere is divided into several layers, each with distinct temperature, composition, and weather characteristics. For pilots,...Atmospheric pressure variation describes how air pressure changes with altitude and across different regions of the atmosphere. Pressure...Clear air turbulence (CAT) refers to turbulence that occurs outside of visible cloud, most commonly at high altitudes near jet streams and...
Latest updated concepts
Wind shear is a sudden change in wind speed and/or direction over a short distance, either vertically or horizontally. In aviation, it poses...Visibility in meteorology refers to how far an observer can see and identify prominent objects in the atmosphere. It's a critical parameter...Turbulence in aviation refers to irregular, unpredictable movements of air that can affect aircraft attitude and passenger comfort. There are...Turbulence in cumulonimbus clouds is among the most severe and hazardous forms of atmospheric turbulence encountered in aviation. These...The tropopause is the boundary between the troposphere and the stratosphere, marking the altitude where the temperature stops decreasing with...A temperature inversion is a reversal of the usual atmospheric temperature profile, where temperature increases with altitude instead of...
Browse
41 conceptsAll concepts
Advection fog forms when warm, moist air moves horizontally over a colder surface, cooling the air to its dew point and causing condensation....Altimeter setting procedures ensure that the aircraft's altimeter displays the correct reference—height above ground, altitude above mean sea...Altocumulus and altostratus are the primary middle-level cloud types found between 6,500 and 16,500 feet above ground level. Altocumulus...Anti-icing and de-icing systems are essential aircraft ice protection methods that either prevent ice from forming or remove ice that has...The Earth's atmosphere is divided into several layers, each with distinct temperature, composition, and weather characteristics. For pilots,...Atmospheric pressure variation describes how air pressure changes with altitude and across different regions of the atmosphere. Pressure...Clear air turbulence (CAT) refers to turbulence that occurs outside of visible cloud, most commonly at high altitudes near jet streams and...Cloud base is the lowest altitude of the visible portion of a cloud above ground level, while cloud tops refer to the highest point of the...Cloud classification is the systematic way meteorology identifies and names clouds based on their appearance, altitude, and structure. For...Cumulonimbus clouds, often abbreviated as CB clouds, are towering, dense clouds recognized as the source of thunderstorms and severe weather....Cyclones and anticyclones are large-scale pressure systems that shape the weather patterns crucial to flight planning and operations....Understanding wind in flight planning is essential for accurate navigation, fuel calculation, and safe operations. Wind aloft affects...Fog formation is the process where air near the ground becomes saturated, causing tiny water droplets to suspend and reduce visibility below...Thunderstorm formation is a process driven by atmospheric instability, moisture, and a lifting mechanism, resulting in the development of...Freezing rain is a hazardous weather phenomenon where supercooled liquid raindrops fall through a sub-zero layer and freeze instantly upon...Frontal fog is a type of fog that develops ahead of warm or occluded fronts, often reducing visibility significantly for pilots. It forms...Weather fronts are boundaries separating air masses with different temperatures and humidity. These fronts—cold, warm, occluded, and...A gust front is a boundary formed by the outflow of cold air from a thunderstorm, spreading out ahead of the storm itself. This feature...Humidity and dew point are key meteorological concepts that describe the moisture content of the air and the temperature at which...Icing in clouds is a critical hazard for aircraft, occurring when supercooled water droplets freeze upon contact with the airframe. The risk...Icing types and their effects are critical for pilots to understand, as different forms of ice can form on aircraft surfaces and systems,...Jet stream turbulence refers to the clear air turbulence (CAT) encountered near the core of high-altitude jet streams. This turbulence is...Jet streams are fast-moving, narrow bands of wind found high in the atmosphere, typically near the tropopause. These powerful air currents...Lenticular clouds, also known as lenticularis, are smooth, lens-shaped clouds that typically form downwind of mountain ranges. Their...Lightning hazards in aviation refer to the risks posed by electrical discharges within or near thunderstorms that can impact aircraft in...Low level windshear alert systems (LLWAS) are ground-based networks designed to detect and warn of sudden changes in wind speed and direction...Microbursts in aviation are highly localized, intense downdrafts that rapidly descend from thunderstorms and spread out at ground level,...Mountain waves are powerful atmospheric oscillations that form when stable air flows over mountain ranges, creating standing wave patterns...Precipitation types refer to the various forms of water or ice that fall from clouds to the Earth's surface, including rain, snow, hail,...Pressure systems are large-scale regions of the atmosphere where the air pressure is higher or lower than surrounding areas. These...Radiation fog is a common fog type that forms over land during clear, calm nights when the ground loses heat by radiating it into space. As...Runway incursion weather hazards refer to meteorological conditions that increase the risk of unauthorized aircraft, vehicles, or people...Squall lines are organized bands of intense thunderstorms, often stretching for hundreds of kilometres. They are associated with severe...Stratus and stratocumulus are both low-level cloud types crucial for pilots to identify. Stratus forms as a uniform, grey layer that can...Supercooled water droplets are liquid water particles that remain unfrozen even at temperatures below 0°C. In aviation, these droplets are...A temperature inversion is a reversal of the usual atmospheric temperature profile, where temperature increases with altitude instead of...The tropopause is the boundary between the troposphere and the stratosphere, marking the altitude where the temperature stops decreasing with...Turbulence in cumulonimbus clouds is among the most severe and hazardous forms of atmospheric turbulence encountered in aviation. These...Turbulence in aviation refers to irregular, unpredictable movements of air that can affect aircraft attitude and passenger comfort. There are...Visibility in meteorology refers to how far an observer can see and identify prominent objects in the atmosphere. It's a critical parameter...Wind shear is a sudden change in wind speed and/or direction over a short distance, either vertically or horizontally. In aviation, it poses...
Related subjects
Rules, airspace, procedures, and the regulatory logic behind safe operations.Core Airframes, Systems, Electrics, Powerplants concepts explained with aviation context and exam relevance.Core Flightplanning concepts explained with aviation context and exam relevance.Take-off, climb, cruise, landing, mass, and environmental limits.Core Instrumentation concepts explained with aviation context and exam relevance.