Some high pressure areas persist long enough that they acquire names. The land-based Siberian High often remains quasi-stationary for more than a month during the most frigid time of the year, making it unique in that regard.
High or High Pressure Area- an area of high pressure that is usually characterized by clear skies and fair weather carried by sinking air; winds rotate clockwise around and outward from the center of the high.
A mesoscale high pressure area, usually associated with MCSs or their remnants.
Mesolow
(or Sub-synoptic Low) A mesoscale low-pressure centre. Severe weather potential often increases in the area near and just ahead of a mesolow.
anticyclone: high pressure area with counterclockwise winds in the Southern Hemisphere and clockwise winds in the Northern Hemisphere.
Anticyclone A high pressure area where winds blow clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere. See cyclone, wind.
AOS See Acquisition of Signal.
Blocking highA high pressure area (anticyclone), often aloft, that remains nearly stationary or moves slowly compared to west-to-east motion. It blocks the movement eastward movement of low pressure areas (cyclones) at its latitude.
SIBERIAN HIGH The semi-permanent high pressure area that forms over Siberia during the winter. The average central pressure exceeds 1030 millibars from late November to early March. It is one the main contributors to a monsoon in southern Asia.
QPFERDNCEP Excessive Rainfall DiscussionQPFHSDNCEP Heavy Snow DiscussionQPFPFDNCEP Precipitation Forecast DiscussionQSTNRYQuasi-stationary - describes a low or high pressure area or a front that is nearly stationary.
Pressure CoupletIt is an area where you have a high pressure area located adjacent to a low pressure area.Pressure Falling RapidlyA decrease in station pressure at a rate of 0.06 inch of mercury or more per hour which totals 0.02 inch or more.
In some cases a high pressure area can produce strong winds and cause damage. This is technically a high pressure area or anticyclone, where a storm is a cyclone or smaller scale anomaly such as a thunderstorm.
Giannetta said by noon yesterday, temperatures reached 39, the high for the day, thanks to a high pressure area that slipped southeast from Canada.
A meso-high pressure area is usually present behind the accelerating thunderstorms. A meso-low pressure area is usually present at the crest of the wave.
Quasi-stationary - describes a low or high pressure area or a front that is nearly stationary.
NOAA National Weather Service - Cite This Source - This Definition ...
(abbrev. QSTNRY)- Describes a low or high pressure area or a front that is nearly stationary.
Quasi-stationary Front
A front which is nearly stationary or moves very little since the last synoptic position. Also known as a stationary front.
Anticyclone - large high pressure area.
Atmospheric Layers
Troposphere - the bottom few miles of the air's depth. Temperature decrease with height at an average rate of almost 6°C per km.
(Dro)
Hmmm …
So cold air falls in a high pressure area and warm air rises in a low pressure area and ... isobars show those areas… I think I got it …Hmmm ... But what warms up the air?
Semipermanent anticyclone (high) High pressure area largely predominate during a major portion of the year where an anticyclone appears on the mean monthly pressure charts.
Subsidence- The descent of a body of air, usually in a high pressure area, that warms the lower levels of air.
Supercooled Water- Water cooled to a temperature of less than 32 degrees Fahrenheit without freezing.
It is associated with the high pressure area that lies over the northwest Sahara in winter and the adjoining part of the Atlantic in other seasons.
EQUATORIAL TROUGH The quasi-continuous area of low pressure between the subtropical high pressure areas in both the Northern and Southern Hemisphere. Related terms: Intertropical Convergence Zone (ITCZ) and doldrums ...
trade winds: wind system in the tropics that blows from the subtropical high pressure areas to the equatorial low pressure area. They are northeast winds in the Northern Hemisphere and southeast winds in the Southern Hemisphere.
A region of high pressure. Air flows outward and (on the northern hemisphere) clockwise around high pressure areas. A high is usually associated with fair weather. Also called "anticyclone".
Hindcast ...
Subsidence: 1) The slow sinking of air usually associated with high pressure areas. It is usually over a broad area. 2) Sinking down of part of the earth's crust due to underground excavation, such as the removal of groundwater ...
EQUATORIAL TROUGH
The quasi-continuous area of low pressure between the subtropical high pressure areas in both the Northern and Southern Hemisphere.
Westerlies The dominant westerly winds that blow in the middle latitudes on the poleward side of the subtropical high pressure areas.
Wet-bulb temperature The lowest temperature that can be obtained by evaporating water into the air.
Normally the depth of intensity of the low pressure areas exceeds the intensity of the high pressure areas, so that the region is one of low pressure on the average.
Subsidence InversionA temperature inversion that develops aloft as a result of air gradually sinking over a wide area and being warmed by adiabatic compression, usually associated with subtropical high pressure areas.
 See also: Pressure, High pressure, High, Surface, Front
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