Convective Outlook: Mon 27 Mar 2017
LOW
SLGT
MDT
HIGH
SVR
What do these risk levels mean?
Convective Outlook

VALID 06:00 UTC Mon 27 Mar 2017 - 05:59 UTC Tue 28 Mar 2017

ISSUED 16:14 UTC Sun 26 Mar 2017

ISSUED BY: Dan

Subtle re-positioning of the upper high cell over the North Sea will allow the upper vortex near Biscay to be drawn northwards towards SW Britain. The associated forcing in an environment with reasonably steep mid-level lapse rates will bring the potential for showery precipitation to develop later on Monday night into Tuesday morning - hence the main interest period is 01Z onwards.


Given some weak instability, there is the potential for embedded elevated deep convection to develop, capable of producing some sporadic/isolated lightning - hence the introduction of a LOW threat area.