Convective Outlook: Fri 23 Nov 2018
LOW
SLGT
MDT
HIGH
SVR
What do these risk levels mean?
Convective Outlook

VALID 06:00 UTC Fri 23 Nov 2018 - 05:59 UTC Sat 24 Nov 2018

ISSUED 17:15 UTC Fri 23 Nov 2018

ISSUED BY: Dan

UPDATE 17:16 UTC Elevated thunderstorms now developing over English Channel, moving into Devon and Dorset. SLGT expanded eastwards to cover this risk through the evening and night

Pulses of deep convection continue to affect SW Britain, S Ireland and adjacent seas, with areas of heavy showers or showery rain capable of producing some sporadic lightning. Given the differences in timing and placement of such convective clusters, it is hard to be specific as to areas at greatest risk of lightning - though in general particular attention is given to the western English Channel, Cornwall and across to the Celtic Sea (especially during Friday daytime). A low-end SLGT has been issued to better highlight this area, but it should be noted that confidence in coverage of lightning is rather low.
Showers may become aligned into narrow bands, with a risk of localised flooding given elements of shower training over similar areas. Some small hail will be possible with the strongest cells.