It reached +30°C (86.5°F) in the Arctic today. Hotter than pretty much all of Europe right now.

Truly exceptional for any time of the year but mind-boggling for May. More updates to follow.
This part of the Arctic is 20-24°C hotter than average for this time of year.

Notice how cool most of Europe is compared to normal.
The maximum temperature has since snuck up to +30.5°C.

Observations available via OGIMET
ogimet.com/cgi-bin/ogimet…
This is part of a ferocious heatwave.

Hotter tomorrow for many places along the fringe of the Arctic ice sheets.

Updates also appearing on Instagram.

⬇️⬇️⬇️
instagram.com/scottduncanwx
⬆️⬆️⬆️
Updated Arctic numbers on graphic over on Instagram.

⬇️⬇️⬇️
instagram.com/p/CPD6ZTCDnKo/…
I will be preparing a graphic showing how hot the Arctic is compared to the rest of Europe later.

Just letting all the maximum temperature data flow in from all countries. This heat is record breaking for Northwest Russia.
I am building a thread on this story as we speak.

Some FAQs might be answered here
Arctic heat is not a new concept but the continual destruction of heat records (like we see now) and the rapid warming trend is the main concern.

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More from @ScottDuncanWX

20 May
Unprecedented heat in the Arctic again today.

Even hotter than yesterday. This thread explains what is going on. ImageImage
This part of the world is crazy. Northerly winds delivers cold and sub freezing while southerly winds can push exceptional heat (despite being in the Arctic). The range of extremes is enormous.

Check the trend from the last few days from this weather station...

Source: Ogimet ImageImage
Arctic heat flashes like this are not new. The fact that we continually push the boundaries of what is possible and keep breaking records in the Arctic is all part of climate change.

The Arctic is warming much faster than the rest of Planet Earth.
Read 5 tweets
19 May
It was hotter in the Arctic than pretty much all of your favourite European holiday destinations today.

This thread explains what is going on.
Let's start with anomalies. An anomaly compares the actual temperature to what is considered average for the time of year.

🔴 = warmer than normal
🔵 = colder than normal

You can see that most of Europe is much colder than average while Russia bakes in incredible warmth.
The weather pattern is perfect for singling out parts of Finland and Russia as hotspots.

The jet stream has a southerly track and locks cool air over much of the continent. The jet stream then lifts north around a blocking high pressure in Russia.
Read 15 tweets
6 Apr
One extreme to another in less than one week!

Beauvais, France 🇫🇷 broke its monthly heat record on March 31 with a baking +24.8°C and then went on to beat its monthly cold record on April 6 with a chilling -6.9°C.

This violent season flip is brutal for flora and fauna.
'But we can't just compare maximum temperature from one day to the minimum of another'

I hear ya. That is bad practice. This is how the maximum temperature from 31 March compares to maximum temperature of today (6 April).

Mot places AT LEAST 20°C colder - awaiting finalisation.
Read 4 tweets
5 Apr
Arctic air pouring through Europe right now. You can trace the source pretty much all the way to the North Pole!

Very well defined on satellite. ImageImage
Cold air watching France like...
Spain 🇪🇸 probably wondering what the fuss is about.
Read 4 tweets
5 Apr
Amazing season flip!

Large parts of Europe saw their hottest March day on record only a few days ago. Places like Germany 🇩🇪 recorded +27.2°C on 31 March 🥵

Now it is snowing with a bitter wind-chill 🥶
Maps via @wxcharts
For reference, it wasn't just Germany that was setting heat records at the end of March.

Summer-style heat followed by winter cold like this is extremely tough on nature.
Read 5 tweets
5 Apr
Brace yourself ⚠️🥶

Arctic air is engulfing almost all of Europe in the next few hours. You should notice a massive temperature drop.

Snow is falling quite widely across parts of northern Europe as we speak.
This animation shows the wind chill temperature, a calculation accounting for strength of wind and air temperature.

Short story: it is going to feel extremely cold for April.
We can't be too surprised by cold and snow and April. This is not rare - it is actually common.

However, this level of cold is impressive. I would say this is a particularly strong Arctic outbreak. Overnight lows will fall below zero widely across Europe.
Read 5 tweets

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