synoptic scale"Used with respect to weather systems ranging in size from several hundred kilometers to several thousand kilometers, the scale of migratory high and low pressure systems (frontal cyclones) of the lower troposphere.
Synoptic scale
Synoptic scale meteorology is generally large area dynamics referred to in horizontal coordinates and with respect to time.
Synoptic Scale (or Large Scale) - Size scale referring generally to weather systems with horizontal dimensions of several hundred miles or more. Most high and low pressure areas seen on weather maps are synoptic-scale systems.
Synoptic Scale - the scale of the migratory high and low pressure systems of the lower troposphere; generally considered 1000 to 2500 km in length ...
Synoptic scale - A large scale event that is usually measured in hundreds to thousands of kilometers and days to weeks; e.g. fronts, cyclones, and anticyclones.
Synoptic scale - the size of features which take a day or more to pass. They are usually a thousand miles or so across.
Thunder - the sound of a thunderstorm. Caused by rapid air expansion following a lightning bolt.
Synoptic scale - Used to classify large-scale weather systems more than 200 miles across.
Synoptic scale The typical weather map scale that shows features such as high- and low-pressure areas and fronts over a distance spanning a continent.
Synoptic scale
A scale of distance used by meteorologists to describe large weather disturbances. Weather systems which span thousands to millions of square miles and which exist for several days are on the "synoptic scale".
T ...
(Synoptic Scale) Size scale referring generally to weather systems with horizontal dimensions of several hundred miles or more. Most high and low pressure areas seen on weather maps are synoptic-scale systems.
A synoptic scale cloud pattern with a characteristic comma-like shape, often seen on satellite photographs associated with large and intense low-pressure systems.
Comma Echo ...
A prevailing synoptic scale flow which governs the movement of smaller features embedded within it.
Stevenson Screen ...
COLD FRONT- A synoptic scale boundary between cold and warm air. The cold air is displacing the warm air. ...
Steering CurrentsSame as Steering Winds; a prevailing synoptic scale flow which governs the movement of smaller features embedded within it.
Great Lakes Storm Summary (Product Header CLEGLSCLE): These summaries will be issued by NWFO Cleveland, Ohio as soon as sustained winds of 50 knots or more are produced by any synoptic scale storm when such winds are expected to continue on any ...
Large scale - See synoptic scale.
Left mover - A thunderstorm which moves to the left relative to the steering winds, and to other nearby thunderstorms; often the northern part of a splitting storm. See also right mover.
Tropical Cyclone
A warm-core, nonfrontal low pressure system of synoptic scale that develops over tropical or subtropical waters and has a definite organized surface circulation.
Dry Slot A zone of dry (and relatively cloud-free) air which wraps east or northeast into the southern and eastern parts of a synoptic scale or mesoscale low pressure system. A dry slot generally is seen best on satellite photographs.
DRY SLOT An area of dry, and usually cloud-free, air that wraps into the southern and eastern sections of a synoptic scale or mesoscale low pressure system. Best seen on a satellite picture, such as a water vapor image.
QUASI-GEOSTROPHIC APPROXIMATION: An approximation to the complete equations describing atmospheric motion in which only the terms most important for the growth and decay of synoptic scale extratropical weather systems (i.e.
The storm is warm core, especially in the lower troposphere, with little overall (synoptic scale) 500-1000 hPa thickness gradient, and therefore hurricanes have no 'Norwegian model' fronts associated with them.
Lest Violent Weather. 78 Wind: 1. Planetary: Northeast Trade Winds. 79 Wind: 2. Synoptic Scale. Hurricanes, Cyclones 80 Wind: 3. Mesoscale: Thunderstorms 81 Wind: 4. Microscale: Tornado, Water Spouts ...
Steering winds (steering currents)A prevailing synoptic scale flow which governs the movement of smaller features embedded within it. StormIn marine usage, winds 48 knots (55 miles per hour) or greater.
 See also: Synoptic, Pressure, Wind, Weather, Low
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