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Darren Bown

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Posts posted by Darren Bown

  1. Glorious sunshine tonight and seems like a pretty good risk of thunderstorms this evening, Metoffice putting them mostly in the east of the region, but all areas are probably around 20-30% risk of a storm from later on this afternoon (some saying possibly from 2pm, but I think more around 4pm onwards).

  2. Estofex risk. 50% lightning and a level 1 across central and southern England and eastern wales

    F6F9E9FF-D165-4AA2-8672-8F3868B93DA1.png

     

    .N France and S United Kingdom...

    Under strong diurnal heating, ~ 10 g/kg mixing ratios and ~ 7 K/km mid-level lapse rates ML CAPE develops up to 1500-2000 J/kg. Although lifting mechanism is not prominent, a belt of weak PVA should help to trigger thunderstorms in the afternoon hours. Within the support of moderate instability and ~ 15 m/s DLS, convective cells should evolve into multicell clusters capable of producing severe wind gusts and excessive precipitation. Small chances for supercells may also provide few large hail events, especially given steep lapse rates in mid-levels. It is expected that thunderstorms will maintain their lightning activity until nighttime hours and move NEwardly.

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  3. Is it sticking anywhere? The snow here has been heavy but it quickly melts or evaporated/blows away as the ground is quite dry? I’m thinking it would need to snow after 4/5pm for anything to settle. Is there any indication that it will snow overnight as Metoffice seem to think most of the snow here will be before 5pm?

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