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  2. Low-pressure area - Wikipedia

    en.wikipedia.org/wiki/Low-pressure_area

    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 ...

  3. Pressure system - Wikipedia

    en.wikipedia.org/wiki/Pressure_system

    A low-pressure area is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the troposphere. [1] The formation process of a low-pressure area is known as cyclogenesis. [2]

  4. Trough (meteorology) - Wikipedia

    en.wikipedia.org/wiki/Trough_(meteorology)

    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 ...

  5. What is a low pressure area? - AOL

    www.aol.com/news/low-pressure-area-163021651.html

    When meteorologists use the term: low pressure area, what are they referring to?There are quite a number of scientific terms commonly used in weather forecasting and low pressure is one of the ...

  6. Central American gyre - Wikipedia

    en.wikipedia.org/wiki/Central_American_gyre

    The Central American gyre (CAG) is a broad and seasonal area of low pressure that occurs over the eastern Pacific Ocean and western Caribbean Sea. It primarily develops annually during the region's rainy season between May and November, and most commonly occurs during late spring (May–June) and early fall (October–November).

  7. Synoptic scale meteorology - Wikipedia

    en.wikipedia.org/wiki/Synoptic_scale_meteorology

    Most high-and low-pressure areas seen on weather maps (such as surface weather analyses) are synoptic-scale systems, driven by the location of Rossby waves in their respective hemisphere. Low-pressure areas and their related frontal zones occur on the leading edge of a trough within the Rossby wave pattern, while high-pressure areas form on the ...

  8. Low pressure system has 30 percent chance to form. What ... - AOL

    www.aol.com/low-pressure-system-30-percent...

    The Treasure Coast area is expected to receive marine impacts, such as higher wave heights, later in the week, a meteorologist said. Low pressure system has 30 percent chance to form. What will ...

  9. What is a low pressure area? - AOL

    www.aol.com/news/low-pressure-area-163021368.html

    When meteorologists use the term: low pressure area, what are they referring to?