|Convective Outlook: Wed 06 Jun 2018|
|What do these risk levels mean?|
VALID 06:00 UTC Wed 06 Jun 2018 - 05:59 UTC Thu 07 Jun 2018
ISSUED 19:49 UTC Tue 05 Jun 2018br> br>
ISSUED BY: Chris
Southern England and the Channel Islands...
Elevated showers and potentially a few thunderstorms may move northwards into Channel Isles and southern and southeastern England from Wednesday evening into Thursday morning. It should be stressed that most of the day will remain dry across southern Britain and this risk if generally from 18z onwards.
A marginally unstable mid-level airmass will be characterised by MUCAPE values of around 200 J/kg overnight across the Channel and near southern England, along with Boyden values of 95-96. Lightning is considered a low risk with this initial wave of mid-level instability, but further potential will persist on Thursday through the weekend.