Windy Community
    • Unread
    • Categories
    • Groups
    • Go to windy.com
    • Register
    • Login

    High pressure over the north Atlantic

    Articles
    omega blocking article pressure weather forecast
    2
    1
    2.0k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • idefix37I
      idefix37 Sailor Moderator
      last edited by idefix37

      For the end of the week, the European model predicts a strong Atlantic ridge in the North Atlantic where we see more frequently low pressure fields.

      At 500hPa level, high geopotential of warm air should form a hot bubble with a typical omega ( Ω ) blocking between 2 cut-off-lows. Block (meteorology)

      The eastern side of the ridge should bring cold air from the polar region over northwestern Europe.

      photo: Windy; desc: Pressure; licence: cc

      Geopotential isolines and temperature at 500hPa - Customized colors

      This type of meridian air movements (warm air on the western side of the ridge and cold air on the eastern side) should continue next week. It is a normal process of exchanging air masses between tropical and polar regions.

      The weather is completely different from what we have experienced during the mild last winter in Europe, with a strong west-east flow linked to a very concentrated polar vortex. This one is currently more destructured, causing these anomalies.
      On Sunday, most of weather models forecast a strong anticyclone between Ireland and Iceland, with more than 1050 hPa which is quite unusual in this area.

      photo: Windy; desc: Pressure; licence: cc

      Pressure amsl - Sunday March 29 - Customized colors

      1 Reply Last reply Reply Quote 4
      • First post
        Last post
      Windyty, S.E. - all rights reserved. Powered by excellent NodeBB
      NodeBB & contributors, OSM & contributors, HERE maps
      Terms of Use     Privacy Policy