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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)

    The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked as a dashed line or bold line. In the UK, Hong Kong [1] and Fiji, [2] it is represented by a bold line extended from a low pressure center [3] or between two low pressure centers; [4] in Macau [5] and Australia, [6] it is a ...

  5. Low pressure could form off the NC coast this week. Here's ...

    www.aol.com/low-pressure-could-form-off...

    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 ...

  6. A low pressure system has formed off the NC coast. Here's ...

    www.aol.com/low-pressure-system-formed-off...

    The National Hurricane Center is monitoring a low pressure system off the NC coast and four other tropical disturbances.

  7. Surface weather analysis - Wikipedia

    en.wikipedia.org/wiki/Surface_weather_analysis

    Low-pressure systems, also known as cyclones, are located in minima in the pressure field. Rotation is inward at the surface and counterclockwise in the northern hemisphere as opposed to inward and clockwise in the southern hemisphere due to the Coriolis force. Weather is normally unsettled in the vicinity of a cyclone, with increased ...

  8. Synoptic scale meteorology - Wikipedia

    en.wikipedia.org/wiki/Synoptic_scale_meteorology

    Surface weather analyses have special symbols which show frontal systems, cloud cover, precipitation, or other important information. For example, an H represents high pressure, implying good and fair weather. An L represents low pressure, which frequently accompanies precipitation. Various symbols are used not just for frontal zones and other ...

  9. Much-needed rain eyes Southern California this weekend: What ...

    www.aol.com/much-needed-rain-eyes-southern...

    A significant change in the weather pattern is coming as an area of low pressure moves south across the region. According to the FOX Forecast Center, it's still too early to tell just how much ...