QUASI-STATIONARY FRONT
A front which is nearly stationary or moves very little since the last synoptic position. Also known as a stationary front.
R ...
Quasi-stationary front
A front that shows little or no horizontal movement. By convention, the term applies to a front this is moving at 5 knots or less.
Quasi-stationary: Describes a low or high pressure area or a front that is nearly stationary.
Quasi-stationary - permalink - collapse
All > Science > Weather
(abbrev. QSTNRY)- Describes a low or high pressure area or a front that is nearly stationary.
NOAA National Weather Service - Cite This Source - This Definition ...
quasi-stationary front (commonly called stationary front)—A front which is stationary or nearly so; conventionally, a front which is moving at a speed of less than 5 knots is generally considered to be quasi-stationary.
R ...
Quasi-Stationary Front: Front whose position remains almost unchanged during a certain period of time.
Observation WellIn hydrologic terms, a non-pumping well used for observing the elevation of the water table or piezometric surfaceOccluded FrontA composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front.
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.
occluded frontA composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front.
letter throughout its 'life' within the area of primary interest (roughly between 50W and 30E, and 70N and 35N), although when a new centre develops and deepens rapidly and absorbs the parent depression the letter of the apparently quasi-stationary ...
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.
A composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front. Two types of occlusions can form depending on the relative coldness of the air behind the cold front to the air ahead of the warm or stationary front.
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.
stationary front - Same as quasi-stationary front.
statistic - Generally, a number describing some characteristic of a population or samples therefrom. Specifically, an estimate of a statistical parameter computed from a sample.
Normally, they occur when the 500 mb cyclonic circulation is quasi-stationary or moves slowly to the east or northeast (about 2° per 12 hours). The average surface temperature is 68°F with northeasterly winds.
QUASI- Nearly (i.e. quasi-geostrophic, quasi-stationary)
RA- Rain
RADIATIONAL COOLING- The earth's surface cooling by emitting longwave radiation. The best radiational cooling occurs on clear nights.
QUANTITATIVE PRECIPITIATION FORECAST (QPF) A forecast of rainfall, snowfall or liquid equivalent of snowfall. QUASI-STATIONARY FRONT A front which is nearly stationary or moves very little since the last synoptic position.
overrunning"A condition existing when an air mass aloft is in motion relative to another air mass of greater density at the surface. This term is usually applied in the case of warm air ascending the surface of a warm front or quasi-stationary ...
Therefore, rather than racing ahead of the updraft to eventually choke it off, the gust front remains quasi-stationary relative to the moving storm and aids in continued lifting of warm air into the updraft.
 See also: Front, Precipitation, Pressure, Stationary front, Surface
  
|
RSS
