Dah, Ralf - seriously. You should know better, than trying to interpret these temporary, highly in flux made weather prediction models á lá GFS etc... because, let's face it; they are notoriously unreliable beyond day 3-4. Anything more, shows often vast discrepancies with reality.
It seems that I sometimes get caught / carried away. Only to realize that - once again - day after i write about a prognosis ... it all falls apart again next day. Of course... as i said, I should have known, and not spend so much time on something which constantly is being re-calculated, showing different results. Reminds me all a bit of .... the stock-market. Sort of.
So; likely no snow for Southern Sweden.
The "bad" weather outlook will most likely not be fully as bad, as originally predicted. Again; reality turns out into something that lies in between the extremes, the GFS "Drama Queen" outlooks. 
There will still be cooler, at times rainy weather - just not as pessimistic as GFS originally had calculated in their models which i recently had written about.
It will be something more like.... typically May in Stockholm.
For example on Thursday 22 may
+7°C are predicted by SMHI - which is very cold compared to the normal average max of +17°C this time of the year. The other days something around 11°C. And then it goes up again, to more normal-ish temperatures. Clearly a cooler period to "look forward to", but not as bad as originally prognosed.
*rolling my eyes*
Thursday yes - nasty weather
I say this, in contrast to todays fantastic summer weather with temperatures up to 26°C (Ronneby-Bredåkra, in the Extreme South) in the same regions, while yesterday 27°C in Middle Sweden in Östmark-Åsarna, not far away from Oslo in Southern Norway. Even Uppsala north of Stockholm made it to 24.0°C --- while 2 days later it will look like this as seen below: The kind of *brrrr*-weather.
Snow is only expected in Northern Norrland, the area that lies furthest to the north.

In some regions
in Southern/Middle Sweden, the temperatures might drop to sensitive +1.7°C during the day in middle Sweden on 22 May. In theory it could contain some snowflakes at times - but that depends on the air higher up in the atmosphere is cold enough to support that. I would suggest, it will not.
My suggestion is, that snow likely could fall in Northern Sweden, where it generally is colder during an inflow of cold air masses. Yet, overall it looks like a temporary cold air period. Let's call it a "bad week", and then it goes up towards 20°C again.
I hope *LOL*

Rain
Regardless was we people in cities might think - the rain is needed - no doubt !!! The deficits has been large, in the past 3.5 months, so any additional rain, is welcome to nature.
Today afternoon, 20 May 2025
This is what it looks like today. The warmth from yesterday, has shifted from Middle Sweden down to Southern Sweden now. Today it isn't as warm in Stockholm, but the sky is clear, blue and the air still feels warm.

From here on (20th) - all the way down to 4°C (22th)
The temperature curve will from here on ebb out - without any maximum peaks on the temperature curve, all the way down to +4°C during daytime on 22 May 2025. Then towards the night rise to 7°C, and further to 11°C on Friday noon.
Funny.
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