In the UK, Ireland, Benelux, northern France and western Germany should appear ground frosts, in the Scotland even frosts around 18.-19. June 2021 according to the newest GFS outputs, therefore, we should say about return of circulation patterns into forecasted conditions for Summer 2021 (cold NW and N Europe, warm south and east: https://mkweather.com/summer-2021-in-europe-will-be-colder-such-was-forecasted/).
In Scotland, frosts up to-3°Cshould appear, in Belgium and neighboring western Germany or northeastern France, temperatures up to 0°C are possible.
Above British Islands, very cold air mass only 0/-3°C in 850 hPa will be shifting eastward and cold air partially hits NW coasts of continental Europe and later, it will shift aboveScandinavia, where will be very cold, too.
As we mentioned in previous article, between 16.-22. June should hit Europe 2 low pressure systems with 2 powerful cold fronts in a very short time, what will be reason of possible surprising, but relatively short coldwave.
Regional or daily temperature records are in air mass such this, possible.
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