VALID 06:00 UTC Wed 09 Aug 2017 - 05:59 UTC Thu 10 Aug 2017

ISSUED 04:57 UTC Wed 09 Aug 2017

ISSUED BY: Dan

Ahead of a southward-moving cold front, a slightly higher WBPT airmass combined with forcing from aloft and surface convergence will provide the trigger for a couple of lines of heavy showers or thunderstorms - particularly in a zone from E Suffolk into E Essex, and a separate area in Kent to East Sussex. Saturated profiles and marginal instability suggests lightning activity might not be that widespread, but a low-end SLGT has been issued to better highlight the region at risk. Main impacts will be localised flooding from prolonged torrential downpours - in fact, many models suggest 50-70mm will be possible locally over parts of East Anglia. Funnel clouds and weak tornadoes will once again be possible with this activity.