High pressure systems
The air associated with a high pressure system sinks down from above and warms as it does so and is very stable.
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 system: area of maximum air pressure and anticyclonic air movement.
humidity: the measure of how much water there is in the air.
High pressure systems are associated with clear, cool weather . Around high-pressure systems, winds flow anticyclonically- that is, clockwise in the northern hemisphere, counterclockwise in the southern hemisphere.
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.
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.
ANTICYCLONE- High pressure system
AP- Anomalous Propagation. This is a false echo on radar data
APCH- Approach(ing) ...
This usually results from a stagnant high pressure system with weak winds being unable to bring in fresh air. Air ToxinToxic air pollutant.
Split Low or High:Low or High pressure systems which are cutoff from the main west to east flow. Spring Equinox: Occurs on or about March 21.
An analysis of atmospheric conditions for the summer of 1993 showed a stationary high pressure system, also known as the Bermuda High, centered much closer to the United States than normally observed for that time of year.
NAONorth Atlantic Oscillation - 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 and is ...
NAO Index - This index measures the anomalies in sea level pressure between the Icelandic low pressure system and the Azores high pressure system.
CORIOLIS FORCE - Tendency for low pressure systems, as well as high pressure systems, to exibit circulations in the same sense as the rotation of the earth.
An intense or strong high pressure system that occasionally forms much further south than usual and remains almost stationary for days, weeks or even months.
South winds on the back (west) side of an eastward-moving surface high pressure system. Return flow over the central and eastern United States typically results in a return of moist air from the Gulf of Mexico (or the Atlantic Ocean).
Ridge ...
Return Flow - South winds on the back (west) side of an eastward-moving surface high pressure system.
Bermuda High - The semipermanent atmospheric subtropical anticyclone (high pressure system) over the North Atlantic Ocean, so named especially when it is located in the western part of the ocean, near Bermuda (near 30° N).
This law is based on the known wind fields which circulate around low pressure and high pressure systems in the northern hemisphere. It is exactly reversed in the southern hemisphere.
high—An area of high barometric pressure, with its attendant system of winds; an anticyclone. Also high pressure system.
hoar frost—See frost.
In North America, cold fronts form on the eastern edges of high pressure systems. A warm front occurs when a warm air mass moves into an area occupied by a colder air mass. The warm air is lighter, so it flows up the slope of the cold air below it.
America, particularly around the Great Lakes region, New England and the Canadian Maritime Provinces. The thaw is associated with a strong flow of warm air northward from the Gulf of Mexico on southerly winds on the back of a high pressure system.
It is most active during the late fall to late spring. During the summer, it is weaker, retreating towards the North Pole and becoming almost nonexistent. During this time, the North Pacific High pressure system dominates.
In addition, on the ASXX, the past 12 hour track of the major low and high pressure systems are shown by short-dash lines with the time/pressure value of the past location annotated alongside its former position.
 See also: Pressure, High pressure, Air, High, Weather
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