Lot’s of talk about an impending heat wave coming up for the UK. As a matter of fact it’s turning cooler towards the weekend as an air mass of arctic origin dives south via a cold front.

The model at 850mb shows the air that’s north of Scandinavia sweeping south.

Convective snow showers could well affect higher parts of the north/central/east Highlands and Grampian Friday/Saturday as northerly winds are fresh to strong, perhaps gale force along coast and high exposure.

It’d unlikely to be a road closing snow even for the Lecht and Glenshee which we’ve seen plenty of times before in early May.

Strong sun and lengthening days mean not particularly cold by day but could see a decent and widespread frost by night. Nothing we haven’t seen before in early May.