warm air mass - See airmass classification.
warning - Issued when a hazardous weather or hydrologic event is occurring, is imminent, or has a very high probability of occurring.
Warm Air Advection Transport of warm air into an area by horizontal winds. Low-level warm advection sometimes is referred to (erroneously) as overrunning.
Warm air advection The flow of air from a relatively warm locality to a relatively cool locality.
Warm clouds Clouds composed of liquid water droplets which have a temperatures above 0·C (32·F).
Warm Air Advection - the advection (movement) of warm air into a region.
Wake
The region of turbulence immediately to the rear of a solid body caused by the flow of air over or around the body.
Warm Air Advection - the advection (movement) of warm air into a region.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Advection fog, CAA, Cold Advection, Moisture Convergence, Sea Fog, Warm Advection ...
Warm Air Occlusion Symbol:
Warm Core Weather Systems: Weather systems with the air at their center warmer than the surrounding air.
Warm Front: When warm air replaces cold air.
Warm Front Symbol: ...
As warm air rises it may cool and reach the saturation point where condensation occurs. This process releases energy to the atmosphere (at the rate of 585 calories per gram of water).
Since warm air is less dense than cool air, the air over land contracts in response to radiational cooling from the ground below.
WAA: Warm Air Advection
WARM FRONT: A boundary between a warm airmass that is replacing a cooler airmass.
WARNING: Forecast issued when a particular hazard is "imminent" or already occurring (e.g., tornado warning, flash flood warning).
WAA: Warm Air Advection
Walker cell- A zonal circulation of the atmosphere confined to equatorial regions and driven principally by the oceanic temperature gradient.
WAA - Warm Air Advection
WALL CLOUD -An isolated lowering of a cloud that is attached to the rain-free base of a thunderstorm, generally to the rear of the visible precipitation area.
A layer of warm air that originates over Spain and moves north towards the British Isles.
Squall Line
A line of heavy showers or thunderstorms often accompanied by strong and gusty winds.
Transport of warm air into an area by horizontal winds.
Low-level warm advection sometimes is referred to (incorrectly) as overrunning. Although the two terms are not properly interchangeable, both imply the presence of lifting in low levels.
A through of warm air aloft. The stage in an occlusion process where the warm air lifts completely off the surface. The significant weather stays with the trowal as it pulls away from the parent low pressure centre.
Tsig ...
An area where warm air is pushed upwards as a cold front overtakes a warm front and pushes underneath it
Orbit
The path of the Earth around the sun, or of satellites around the Earth ...
VTA- Ventura
WAA- Warm Air Advection. Horizontal movement of warmer air into the forecast area.
WAD- Wind Advisory ...
(Animation 67K) Warm air rising around the eye of the cyclone produces cloud and rain. Air sinking inside the eye prevents cloud and rain from forming.
When the Pacific warm air mass weakens in autumn, the front comes back from the north and it rains for several weeks in Japan. The autumnal rain is called "akisame" (秋雨).
[edit] Dispute ...
A front where the warm air descends the frontal surface (except in the low layers of the atmosphere).
Keetch-Byrum Drought Index
An index used to gage the severity of drought in deep duff and organic soils.
A front where the warm air descends the frontal surface, except in the low layers of the atmosphere.
KELVIN TEMPERATURE SCALE ...
Trowal - Trough of Warm Air Aloft. An occluded front where cold air is on both sides and the warm air has been completely lifted.
Polar front - divies air polar air masses from tropical air masses.
KatafrontA front (usually a cold front) at which the warm air descents the frontal surface.Killing frostFrost severe enough to end the growing season. This usually occurs at temperatures below 28 degrees Fahrenheit.
StableAn atmospheric state with warm air above cold air which inhibits the vertical movement of air.
WARM FRONT The leading edge of an advancing warm air mass that is replacing a retreating relatively colder air mass.
Cold air is always located to the left of the thermal wind (as you face downstream) and the warm air is located on the right.
thermalA small, rising parcel of warm air produced when the earth's surface is heated unevenly.
Cap or Cap Strength: It measures the ability of stable air aloft (a layer of relatively warm air) to inhibit low-level parcel ascent.
They are fed by the energy released from moist warm air from the summer-heated tropical seas, producing equatorial rain bands and low pressure. The Atlantic season lasts from June to November.
These systems are low pressure regions that form where there is a horizontal difference in wind and / or temperature, such as between a cold air mass over Canada and a warm air mass over the southern US.
Cap (or Capping Inversion) - A layer of relatively warm air aloft (usually several thousand feet above the ground) which suppresses or delays the development of thunderstorms.
A cold front is named as such because the cold air is advancing on the warm air.On satellite imagery, cold fronts are generally clearly marked cloud bands up to several hundred kilometres wide.
The leading edge of an advancing warm air mass that is replacing a retreating relatively colder air mass.
Clouds can form along warm and cold fronts, where air flows up the side of the mountain and cools as it rises higher into the atmosphere, and when warm air blows over a colder surface, such as a cool body of water.
Overrunning A weather pattern in which a relatively warm air mass is in motion above another air mass of greater density at the surface.
Cap (or lid) - A layer of warm air, several thousand feet above the surface, which suppresses or delays the development of thunderstorms.
For a tropical cyclone to continue to develop, there must be inflow of warm air at lower levels, and upper level outflow: the convection provides the 'pathway' for the necessary rising air.
Warm Front - the advancing edge of a warm air mass
Warning - a product issued by the local National Weather Service office when a particular weather hazard is either imminent or has been reported.
where g is gravitational acceleration, H is the initial depth of the cold pool, Δθ is the potential temperature contrast between the cold and surrounding warm air, θ0 is the absolute potential temperature of the warm air, ...
temperature inversion- an atmospheric condition in which a layer of warm air, usually from a high pressure system, moves over a colder layer, preventing it from rising or dispersing.
There are four common causes of a temperature inversion: radiational cooling, advection of warm air over cold air as in frontal situations, advection of warm air over a cold surface such as snow or ice, and subsidence, ...
Warm front A front that moves in such a way that warm air replaces cold air.
Warm occlusion See Occluded front.
Warm sector The region of warm air within a wave cyclone that lies between a retreating warm front and an advancing cold front.
Overrunning- The flow of warm air over cold air in advance of a warm front.
Ozone- An unstable oxygen compound that is a pollutant at ground level, but that absorbs deadly ultraviolet rays in the stratosphere.
OVERRUNNING This occurs when a relatively warm air mass is forced above a cooler air mass of greater density. Weather generally associated with this event includes cloudiness, cool temperatures, and steady precipitation.
WARM FRONT - An advancing mass of warm air.
WEATHERVANING - The tendency for an airplane to turn into the wind naturally due to a greater surface area behind the center of gravity as compared to that in front.
Convection: 1. vertical air circulation in which warm air rises and cool air sinks, resulting in vertical transport and mixing of atmospheric properties. 2. flow of heat by this circulation.
convection:the process in which cool air delves down, while warmer air rises to the top. The warm air usually cools in the cooler, higher sections of the atmosphere and again begins to return back down.
Heatwave
Marked warming of the air, or the invasion of very warm air, over a large area; it usually last from a few days to a few weeks.
Heavy Rain
Rain with a rate of accumulation exceeding a specific value, e.g., 7.6 mm/h.
A fog that forms when warm air flows over a cold surface and cools from below until saturation is reached.
ADVIS ...
relative humidity = (the actual water vapor content of the air) divided by (the maximum water capacity for that temperature)
Warm air has the capacity to hold more water vapor than cool air so relative humidity changes with changing temperature ...
Fog forms at sea when warm air associated with a warm current drifts over a cold current and condensation takes place. Sometimes such fogs are drawn inland by low pressure, as often occurs on the Pacific coast of North America.
Warm Advection - Transport of warm air into an area by winds.
Warm Front - A front that moves in such a way that the warmer air replaces the colder air.
WARM FRONT: A leading boundary of a warm airmass that is often moving into an area influenced by a cooler airmass.
warm sector—The area covered by warm air at the surface and bounded by the warm front and cold front of a wave cyclone.
water equivalent—The depth of water that would result from the melting of snow or ice.
Warm front - The transition zone where a warm air mass overtakes and replaces a colder air mass.
Stationary Front- the boundary between cool and warm air in which neither air mass is advancing.
Arcus (Arc Cloud): A dense, arched-shaped, menacing-looking accessory cloud to a cumulonimbus that can occur along the leading edge of a thunderstorm's gust front as the consequence of uplift of stable warm air. Same as a shelf cloud.
They may look like tornadoes, but dust devils are not formed by thunderstorms and do not drop from the sky. Dust devils are caused by swirling winds that rise with the warm air found over the ground.
 See also: Air, Surface, Cloud, Temperature, Weather
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