It’s been quite the upside down pattern this May over Europe with a wet south and dry north thanks to the relentless persistency in a Scandinavian blocking high. However, it may be of a surprise to you that Reykjavik, Iceland has seen a very wet May and in fact precipitation has been reported on every day during the month.
Credit: Icelandmonitor
In the starkest of contrasts, Helsinki, Finland has not seen a drop of rain.
Indeed Scandinavia has been dry, with about 50% of normal precipitation. Parts of northern Germany and Finland only got 20% (E-OBS data up to 28/5). pic.twitter.com/w6Jtnb4Gen
— Geert Jan van Oldenborgh (@gjvoldenborgh) May 29, 2018
https://twitter.com/ylenews/status/1001829363812323328
Blame a record strong +NAO (+2.5 sigma) this May (strongest for May since at least 1950) with a deep trough over Greenland and North Atlantic and powerful upper ridge stretched across Scandinavia. Reykjavik and western Iceland found themselves stuck in between systems and unfortunately on the wet side while even eastern Iceland saw warmer-drier than normal weather.
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