Jump to content
Snow?
Local
Radar
Cold?
IGNORED

Supercell "Arctic" Thunderstorms


Recommended Posts

Posted
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom
  • Weather Preferences: cold winters, cold springs, cold summers and cold autumns
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom

I know we can easily get thunderstorms during polar and arctic outbreaks including the best, Thundersnow!  I have also read in my old weather books that severe thunderstorms occurred during the east US Blizzard Of January 1996 as well as the east US Blizzard Of March 1993.  I have also read the reports on Mr Data's threads about the cold spells of October 1922 and October 1926 which both mentioned severe thunderstorms occurring over parts of the UK during those cold spells.  But would such severe thunderstorms in Arctic air be actual supercells or just severe non-supercell thunderstorms such as squall lines or Mesoscale Convective Complexes or even just severe isolated non-supercell storms?

Edited by Goodbye Cold Weather! :(
Link to comment
Share on other sites

Posted
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom
  • Weather Preferences: cold winters, cold springs, cold summers and cold autumns
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom

I know supercells can form along frontal zones but I am specifically talking about a supercell forming solely in Arctic or very cold polar air that becomes very unstable without any warm and humid tropical/subtropical/mid latitude air being involved.

Edited by Goodbye Cold Weather! :(
Link to comment
Share on other sites

I know supercells can form along frontal zones but I am specifically talking about a supercell forming solely in Arctic or very cold polar air that becomes very unstable without any warm and humid tropical/subtropical/mid latitude air being involved.

what would the driver be for the instability ??.
  • Like 1
Link to comment
Share on other sites

Posted
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom
  • Weather Preferences: cold winters, cold springs, cold summers and cold autumns
  • Location: Yorkshire Puddin' aka Kirkham, Lancashire, England, United Kingdom

what would the driver be for the instability ??.

The instability would be driven by the sharp vertical temperature contrast between the deep very cold airmass and the warmer ice-free water or snow free land.  The instability would be further enhanced by the steep lapse rate created by the very cold upper level air.

  • Like 1
Link to comment
Share on other sites

Posted
  • Location: Beccles, Suffolk.
  • Weather Preferences: Thunder, snow, heat, sunshine...
  • Location: Beccles, Suffolk.

The instability would be driven by the sharp vertical temperature contrast between the deep very cold airmass and the warmer ice-free water or snow free land.  The instability would be further enhanced by the steep lapse rate created by the very cold upper level air.

And you'll need relatively low SLP, too..Otherwise it'll be that boring, miserable, flat stratus crap, with a few annoying snow-grains!

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • UK Storm and Severe Convective Forecast

    UK Severe Convective & Storm Forecast - Issued 2024-03-29 07:13:16 Valid: 29/03/2024 0600 - 30/03/2024 0600 THUNDERSTORM WATCH - FRI 29 MARCH 2024 Click here for the full forecast

    Nick F
    Nick F
    Latest weather updates from Netweather

    Difficult travel conditions as the Easter break begins

    Low Nelson is throwing wind and rain at the UK before it impacts mainland Spain at Easter. Wild condtions in the English Channel, and more rain and lightning here on Thursday. Read the full update here

    Netweather forecasts
    Netweather forecasts
    Latest weather updates from Netweather

    UK Storm and Severe Convective Forecast

    UK Severe Convective & Storm Forecast - Issued 2024-03-28 09:16:06 Valid: 28/03/2024 0800 - 29/03/2024 0600 SEVERE THUNDERSTORM WATCH - THURS 28 MARCH 2024 Click here for the full forecast

    Nick F
    Nick F
    Latest weather updates from Netweather
×
×
  • Create New...