VALID 06:00 UTC Tue 07 Jan 2020 - 05:59 UTC Wed 08 Jan 2020

ISSUED 08:34 UTC Tue 07 Jan 2020

ISSUED BY: Dan

Behind a cold front, cold air aloft will overspread Scotland resulting in increasing instability (a couple hundred J/kg CAPE) and steepening lapse rates. Showers will affect many western areas, but will move well-inland courtesy of organised troughs/occlusions in the flow. A few isolated lightning strikes may be possible, but the restricted depth of convection may limit this threat somewhat. Particularly attention is given to the late afternoon / early evening hours as a trough potentially moves west-to-east across Scotland in a very strongly-sheared environment - there may be scope for a low-topped supercell.