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Map of pressure systems across North America. A pressure system is a peak or lull in the sea level pressure distribution, a feature of synoptic-scale weather.The surface pressure at sea level varies minimally, with the lowest value measured 87 kilopascals (26 inHg) and the highest recorded 108.57 kilopascals (32.06 inHg).
In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. It is the opposite of a high-pressure area . Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), [ 1 ] while high-pressure areas are ...
Upper-level low-pressure system example. As the name implies, these lows are located in the upper portion of the atmosphere, generally about 15,000 feet and higher. You might hear a meteorologist ...
Type B storms form from a parent low-pressure system over the Ohio Valley, which then undergoes a center reformation over Gulf Stream off North Carolina or Virginia. These storms can bring a swath of wintry precipitation from the Great Plains and the Ohio River Valley to the Middle Atlantic and New England. [24] [25]
The National Hurricane Center is monitoring a low pressure system off the NC coast and four other tropical disturbances.
A low pressure system has emerged over the eastern Gulf of Mexico and is projected to move northeast, according to the National Hurricane Center.. The latest tropical weather outlook predicts the ...
A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area. Since low pressure implies a low height on a pressure surface, troughs and ridges refer to features in an identical sense as those on a topographic map. Troughs may be at the surface, or aloft, at ...
The Treasure Coast area is expected to receive marine impacts, such as higher wave heights, later in the week, a meteorologist said.