Convective Outlook: Mon 11 Sep 2017

LOW SLGT MDT HIGH SVR

What do these risk levels mean?

Convective Outlook

VALID 06:00 UTC Mon 11 Sep 2017 - 05:59 UTC Tue 12 Sep 2017

ISSUED 04:19 UTC Mon 11 Sep 2017

ISSUED BY: Dan

Upper trough gradually moving eastwards across the British Isles on Monday will lead to fairly widespread showers, some perhaps weakly-electrified given marginal instability and steep mid-level lapse rates. A low-end SLGT has been issued for Yorkshire / Lincolnshire and East Anglia, but some uncertainty as to how widespread showers will be here. In general, quite dry air aloft may limit the true convective depth somewhat, and hence limits the lightning potential - despite showers being capable of producing heavy downpours and some hail.