High Pressure Centers also known as anticyclones
A high pressure center is where the pressure has been measured to be the highest relative to its surroundings.
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.
Ridge (of high pressure) In meteorology, an elongated area of relatively high atmospheric pressure, almost always associated with and most clearly identified as an area of maximum anticyclonic curvature of wind flow.
High pressure
Atmospheric circulations that rotate anti-clockwise in the Southern Hemisphere. Anticyclones are areas of higher pressure and are generally associated with lighter winds and fine and settled conditions.
Humidity ...
High Pressure
A mass of air that presses down strongly on the surface of the Earth because it is being cooled and is therefore more dense
Humidity ...
HIGH PRESSURE SYSTEM
An area of relative pressure maximum that has diverging winds and a rotation opposite to the earth's rotation. This is clockwise the in Northern Hemisphere and counterclockwise in the Southern Hemisphere.
High Pressure - An area of a relative pressure maximum that has diverging winds and rotates in the opposite direction as the earth.
high pressure system: area of maximum air pressure and anticyclonic air movement.
humidity: the measure of how much water there is in the air.
High Pressure - In the Northern Hemisphere, an area of high atmospheric pressure with a closed, clockwise movement of air (circulation). Also known as an anticylone.
area of high pressure"See high.
area of influence"The area within the cone of depression of a discharging well or the cone of impression of a recharging well.
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.
high pressure system- an area of high barometric pressure that rotates clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere.
HIGH PRESSURE SYSTEM - An area of high atmospheric pressure which generally means good visibility for flying.
HORIZONTAL COMPONENT OF LIFT - Another term for centripetal force. The center-seeking force which causes an airplane to turn.
High Pressure System - A whirling mass of cool, dry air that generally brings fair weather and light winds. When viewed from above, winds spiral out of a high-pressure center in a clockwise rotation in the Northern Hemisphere. These bring sunny skies.
HIGH PRESSURE - A region of high air pressure in the atmosphere. Commonly associated with fair weather. Strong high-pressure regions may cause strong outflow winds.
Area of high pressure that is shallow in vertical extent and produced primarily by cold surface temperatures.
Thermal Low
Area of low pressure that is shallow in vertical extent and produced primarily by warm surface temperatures.
Normally high pressure is located in the eastern Pacific off the shores of Ecuador and Peru, likewise, low pressure is situated over the western Pacific in the area of Indonesia and Australia.
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.
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 ...
A high pressure system that has its coldest temperatures at or near the center of circulation, and horizontally, is thermally barotropic. It is shallow in nature, as circulation decreases with height.
DIRTY HIGH- High pressure usually brings clear weather. A high pressure is termed "dirty" if it has a canopy of clouds associated with it.
anticyclone: high pressure area with counterclockwise winds in the Southern Hemisphere and clockwise winds in the Northern Hemisphere.
HIGH: An area of high pressure around which the wind blows clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere.
HUMIDITY: Generally the measure of the water vapor content of the air.
High - An area of high pressure, usually accompanied by anticyclonic and outward wind flow. Also known as an anticyclone.
High Risk (of severe thunderstorms) - Severe weather is expected to affect more than 10 percent of the area.
A mesoscale area of high pressure, typically associated with cooler air from the rainy downdraft area of a thunderstorm or a complex of thunderstorms. A gust front or outflow boundary separates a bubble high from the surrounding air.
Ridge
(Ridge of High Pressure) Region of the atmosphere in which the pressure is high relative to the surrounding region at the same level.
Arctic highA very cold high pressure that originates over the Arctic Ocean.
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.
Trade WindsPersistent tropical winds that blow from the subtropical high pressure centers towards the equatorial low.
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.
HIHigh- In meteorology, a region of high pressure; also known as anticyclone. HICHydrologist In ChargeHigh(abbrev. HI)- In meteorology, a region of high pressure; also known as anticyclone.
AnticyclogenesisThe formation or intensification of an anticyclone or high pressure center.
North Atlantic Oscillation(Abbrev. NAO) - the NAO is a large-scale fluctuation in atmospheric pressure between the subtropical high pressure system located near the Azores in the Atlantic Ocean and the sub-polar low pressure system near Iceland ...
Southern Oscillation Index An indicator based on the pressure gradient between the quasi-stationary low pressure region and the center of a subtropical high pressure cell.
This requires a pressure pattern which allows stagnation of the air - and this usually means a slow-moving anticyclone such as is found in the great sub-tropical high pressure belts, ...
Ridge used by itself refers to an area of high pressure, characterized by low dewpoints, sunny skies, and light winds. However, when combined with the word hostile it has a somewhat different meaning.
Bermuda High A semi-permanent, subtropical area of high pressure in the North Atlantic Ocean off the East Coast of North America that migrates east and west with varying central pressure. Depending on the season, it has different names.
AZORES HIGH A semi-permanent, subtropical area of high pressure in the North Atlantic Ocean that migrates east and west with varying central pressure. Depending on the season, it has different names.
NAO Index - This index measures the anomalies in sea level pressure between the Icelandic low pressure system and the Azores high pressure system.
Cold Air Damming- Cold air damming occurs when a cold dome of high pressure settles over northeastern New England. The clockwise circulation around the high pressure center brings northeasterly winds to the mid Atlantic region.
Alternate term for Bermuda High - a semi-permanent, subtropical area of high pressure in the North Atlantic Ocean off the East Coast of North America that migrates east and west with varying central pressure.
The term is usually applied to low pressure rather than to high pressure, although technically it is acceptable in either sense.
Anticyclone: An area of high pressure, also called a High, around which the winds circulate in a clockwise direction in the Northern Hemisphere (and counter-clockwise in the Southern Hemisphere). It is usually responsible for fair, dry weather.
Downslope/Upslope Flow: Air that descends down a mountain chain or over sloping terrain (pressurized air moving from high pressure to low pressure), resulting in subsequent drying, and in some cases, ...
The formation of an anticyclone or area of high pressure.
Anticyclone
A region of relatively high pressure where air is descending through the atmosphere normally brings dry and settled weather.
RIDGE: An elongated area of high pressure in the atmosphere.
SANTA ANA WINDS: Relatively warm, dry winds that blow into Southern California coastal areas from an anticyclone located over the high deserts of California or Nevada.
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.
Anticyclone - An area of high pressure. Winds blow in a clockwise direction in the Northern Hemisphere and in a counter clockwise direction in the Southern Hemisphere. Fair weather is associated with an anticyclone.
Ridge- An elongated area of high pressure that normally runs north and south.
Rime- Tiny balls of ice that form when tiny drops of water freeze on contact with the surface.
Ridge: on a weather chart, a narrow elongated area of relatively high pressure.
Rime ice: an opaque coating of tiny, white, granular ice particles caused by the rapid freezing of supercooled water droplets on impact with an object. See also clear ice.
Return Flow - South winds on the back (west) side of an eastward-moving surface high pressure system.
Ridge - An area of high pressure. An area of anticyclonically curving winds.
Buys Ballot's Law - With your back to the wind in the Northern Hemisphere, low pressure will be to your left and high pressure to your right. The reverse is true in the Southern Hemisphere.
trade winds—Prevailing, almost continuous winds blowing with an easterly component from the subtropical high pressure belts toward the intertropical convergence zone; northeast in the Northern Hemisphere, ...
Pressure gradient force A force operating in the atmosphere that accelerates air parcels away from regions of high pressure toward regions of low pressure in response to an air pressure gradient.
At the top of the storm, a dome of high pressure over the eye presses the air outwards, forming the outgoing spirals of cirrus cloud seen in satellite photographs.
of the atmospheric pressure in which there is a central pressure higher than the adjacent pressures. It is characterized in a synoptic chart as a system of closed isobars, involving a high central pressure. It is normally called high pressure center.
ridgeA narrow elongated area of relatively high pressure on a weather chart.Rossby wavesA series of troughs and ridges on quasi-horizontal surfaces in the major belt of upper tropospheric westerlies.
Ridge An elongated area of relatively high pressure. Usually associated with and most clearly identified as an area of maximum anticyclonic curvature of the wind flow. The opposite of a trough.
 See also: Pressure, High, Air, Surface, Weather
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