Mika Rantanenさんのイラストまとめ

Deep low pressure system currently in Scandinavia with central pressure ~964 hPa.

Not too far from the lowest air pressure on record in Sweden in April, which is 960.4 hPa: https://t.co/XMYbBDiDty

A major pattern flip coming for the Easter, if you believe the deterministic ECMWF forecast.

[Charts by @PivotalWeather: https://t.co/w9jQLf7l9r]

Quite an anomalous anticyclonic wave breaking event currently in the North Atlantic.

Acts like a precursor to the shift towards NAO+ regime.

https://t.co/kY0eOge2br

Usein sään ääri-ilmiön (esim. Siperian #helleaalto) tapahtuessa tutkijoilta ja meteorologeilta kysytään "johtuiko tämä ilmastonmuutosksesta?

Vastaus on, että itseasiassa kysymys on väärä. Pitäisi kysyä, miten paljon ilmastonmuutos *vaikutti* helleaallon voimakkuuteen?

@LasseWinberg Tässä @LasseWinberg, poikkeama 1990-2019 keskiarvoon nähden.

Would you believe me if I said that winter (DJF) in Finland will most likely end up being a little bit *warmer* than the 1981-2010 average?

@AnniinaValtonen 🤔

Exactly year ago we were hitting the final nails in the coffin of the truly unprecedented winter 2019/2020.

This year the picture is slightly different, especially in NW-Russia.

@jkaljundi Sorry for not responding your earlier tweet... But here's the same change in temperatures as a map.

You can see that essentially the further north you go, the more warming you get = a phenomenon called Arctic amplification.

So I believe Arctic amplification is a key word here.

High-latitude blocking in the Arctic Canada has been near the record-levels for the month of February, according to the sounding climatology from Eureka, Nunavut.