Convective Outlook: Fri 24 May 2019

LOW SLGT MDT HIGH SVR

What do these risk levels mean?

Convective Outlook

VALID 06:00 UTC Fri 24 May 2019 - 05:59 UTC Sat 25 May 2019

ISSUED 20:25 UTC Thu 23 May 2019

ISSUED BY: Chris

A relatively slack pressure pattern over the British Isles will generally bring dry conditions, however surface insolation combined with a few convergence boundaries and a little CAPE (100-300 J/kg) could lead to the risk of some isolated heavy showers developed across southern and southeastern England and SE Wales during the mid to late afternoon and early evening. Lightning is consider a low risk, not much greater than the minimum 5% required. As temperatures drop towards sunset, showers will quickly decay.