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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. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), [ 1 ] while high-pressure areas are associated with lighter winds and clear skies. [ 2 ]

  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. 'Volatile conditions' prompt red flag warnings across ...

    www.aol.com/volatile-conditions-prompt-red-flag...

    "And with relatively low humidity." Santa Ana winds typically happen when air from a region of high pressure over dry desert flows westward toward low-pressure areas off the California coast.

  5. Santa Ana winds: facts and fiction - AOL

    www.aol.com/weather/santa-ana-winds-facts...

    Santa Ana winds and, their Bay Area cousin, the Diablo winds occur when air from a region of high pressure over the dry Great Basin region of the U.S. flows westward toward lower pressure located ...

  6. San Francisco fog - Wikipedia

    en.wikipedia.org/wiki/San_Francisco_fog

    The most common causes of such turbulence are strong upper-level low pressure areas, or the monsoon, a seasonal shift in wind patterns, which occasionally extends northwestward from the desert areas of the U.S. This shift in wind can disrupt stable atmospheric conditions, causing changes in the marine layer.

  7. 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 ...

  8. 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 ...

  9. 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 ...