1. SPECIAL NOTE TO NEW WEATHERZONE FOLK

    If you recently registered and have not received a confirmation email - please check your 'Spam or Junk' folders. Especially if your email is Hotmail. More help with confirmation issues

    NOTE: This notice may be closed.

    Dismiss Notice

Question WX Trivia

Discussion in 'Alpine & Southern' started by POW_hungry, Jan 10, 2018.

  1. POW_hungry

    POW_hungry Part of the Furniture Ski Pass: Gold

    Joined:
    May 28, 2000
    Messages:
    17,012
    Likes Received:
    19,091
    Location:
    Eastern Burbs of Sydney
    Here's one for the brains trust, anyone want to have a go at explaining the shift in heights (-) for the Antarctic Region in which GFS/EC has progged for the next fortnight?
    Merely by 'eyeballing', the run starts with an avg of ~522 dam and transitions to an avg of ~504 dam. Probably not a big shift but an obvious one at that.

    Currently, there's no huge stratospheric anomaly so I am guessing it's more in the mid/lower-levels?
    [​IMG]
     
    Tanuki likes this.
  2. POW_hungry

    POW_hungry Part of the Furniture Ski Pass: Gold

    Joined:
    May 28, 2000
    Messages:
    17,012
    Likes Received:
    19,091
    Location:
    Eastern Burbs of Sydney
    No takers? From what I can understand it's generally indicative of colder denser air, which in-turn influences a lower 500mb height.
    So this would indicate the presence of an area of Low pressure at the surface. An overly developed Summer pattern for the South Pole region perhaps?
     
    Jellybeans and Claude Cat like this.