Jump to content
Thunder?
Local
Radar
Pollen

Recommended Posts

Posted
  • Location: Taunton, Somerset
  • Weather Preferences: Snow, thunder, strong winds. HATE:stagnant weather patterns
  • Location: Taunton, Somerset

    Convection increased near the well defined LLC of invest 93L overnight, and winds from recon were found to be at 40kts, so NHC upgraded 93L to Tropical Storm Bertha.

    Shear and dry air continue to affect Bertha as it heads west-northwestwards into the eastern Caribbean. Shear isn't expected to significantly ease anytime soon, so Bertha will probably continue to struggle.

    Bertha is expected to affect the eastern Caribbean before lifting northwestwards into the northeast Caribbean Sea. A recurve to the northeast is then expected east of the USA.

    Link to comment
    Share on other sites

    • Replies 10
    • Created
    • Last Reply

    Top Posters In This Topic

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Upgraded to 50mph. Recon reports center is not vertically stacked but there appears to be banding developing on the eastern side since shear is now from the west and not east.

    Its going to be a real struggle for the next 48 hours including the hit on Haiti and Peurto Rico but Bertha if it survives should have higher heat content, a moisture atmosphere, slower speed and lower shear which all bode well for strengthening.

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Center is completely exposed with convection all to the east at the moment, probably because it's moving at 22mph. Will have to see what it does overnight or it could be downgraded.

     

     

    Posted Image

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Finally looks normal, should see continued strengthening from now on and indeed the NHC brings this to hurricane strength.

    Link to comment
    Share on other sites

    Posted
  • Location: Taunton, Somerset
  • Weather Preferences: Snow, thunder, strong winds. HATE:stagnant weather patterns
  • Location: Taunton, Somerset

    Still sheared at the moment, leaving the LLC C exposed. I don't think it'll intensify much until it clears Puerto Rico. But yes, shear looks lower in the western Atlantic so Bertha should respond.

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Well, on Saturday the center was not closed but north of the islands it is strengthening quickly and looks good. Nhc have it now at 65mph.

    Link to comment
    Share on other sites

    Posted
  • Location: Exile from Argyll
  • Location: Exile from Argyll

    Bertha becomes the second hurricane of the season.

     

    Dropsonde surface reading -

     

    1006mb (29.71 inHg) Sea Level (Surface) 24.4°C (75.9°F) 23.3°C (73.9°F) 140° (from the SE) 83 knots (96 mph)

     

    This ugly looking storm has higher pressure and stronger winds than the more classically structured Arthur.

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Author got to 90mph, pressure is 998mb.

    Amazing though that the models have had the track almost spot on from 10 days out but got the strength wrong 12 hours out. Bertha increased in strength by 30KT in 24 hours.

    Certainly a resilient, unpredictable and dare I say hard working system.

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Down to a 65mph tropical storm. Will probably degenerate with shear rather than go extratropical.

    Link to comment
    Share on other sites

    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Still a 50mph tropical storm.

    • Like 1
    Link to comment
    Share on other sites

    Posted
  • Location: The Netherlands
  • Location: The Netherlands

    I've made a post analyzing the cyclone, its demise, the uncertainty associated with it and, finally, the weather in the extended timeframes. It can be found here: http://forum.netweather.tv/topic/81078-possible-storm-bertha/page-3

    Edited by Vorticity0123
    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
     Share

    ×
    ×
    • Create New...