the line that divides between two air masses with similar thermal characteristics
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Stationary front Definition from Science & Technology Dictionaries & Glossaries
A front which is nearly stationary or moves very little since the last synoptic position. May be known as a quasi-stationary front.
Stationary front Definition from Encyclopedia Dictionaries & Glossaries
A stationary front is a boundary between two different air masses, neither of which is strong enough to replace the other. On a weather map, this is shown by an inter-playing series of blue spikes pointing one direction and red domes pointing the other. They tend to remain essentially in the same area for extended periods of time, and waves sometimes propagate along the frontal boundary. A wide variety of weather can be found along a stationary front, but usually clouds, prolonged precipitation, and storm trains are found there. Stationary fronts will either dissipate after several days or devolve into shear lines, but can change into a cold or warm front if conditions aloft change.
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