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Ridge line extending to the left of the high pressure center (H). In meteorology a ridge or barometric ridge is an elongated area of relatively high atmospheric pressure compared to the surrounding environment, without being a closed circulation. [1] It is associated with an area of maximum anticyclonic curvature of wind flow.
A high-pressure area, high, or anticyclone, is an area near the surface of a planet where the atmospheric pressure is greater than the pressure in the surrounding regions. Highs are middle-scale meteorological features that result from interplays between the relatively larger-scale dynamics of an entire planet's atmospheric circulation .
The Ridiculously Resilient Ridge was characterized by a broad region of anomalously positive geopotential height on monthly to annual timescales. This persistent high pressure system acted to "block" the prevailing mid-latitude westerlies, shifting the storm track northward and suppressing extratropical cyclone (winter storm) activity along the West Coast of the United States.
This creates a ridge of high pressure near the 30th parallel in both hemispheres. At the surface level, the sinking air diverges again with some returning to the equator, creating the Hadley cell [ 6 ] which during summer is reinforced by other climatological mechanisms such as the Rodwell–Hoskins mechanism .
[14] [15] High-pressure systems are alternatively referred to as anticyclones. On weather maps, high-pressure centers are associated with the letter H in English, [16] or A in Spanish, [17] because alta is the Spanish word for high, within the isobar with the highest pressure value. On constant pressure upper level charts, it is located within ...
Winter Storm Live Tracker: Snowfall Maps, Current Alerts, Power Outage Forecasts ... The FOX Forecast Center said north of the storm, a strong ridge of high pressure will be supplying cold air ...
Voeykov axis (or Voeikov axis) is the axial portion (ridge) of a high atmospheric pressure band stretching across Eurasia roughly along the 50th parallel. It was named in honor of Alexander Voeikov , a climatologist , who studied this phenomenon.
A powerful high-pressure ridge will bring unusually hot temperatures to the Golden State by the middle of this week, before spreading into the Pacific Northwest.