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Scott Duncan Profile picture
@ScottDuncanWX
May 19, 2021 • 9 tweets • 4 min read • Read on X
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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

Scott Duncan Profile picture
Sep 15
Flooding disaster unfolding right now in Central Europe.

Why is it so bad?

This thread takes a quick look at some of the key ingredients of this record-breaking storm.
Image
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Let’s start with the background. It has been an exceptional Summer for the Mediterranean Sea. Heat records have been broken.

Warmer sea surface temperatures allow more moisture to evaporate, like fuel for a storm. The warmer the water, the greater the evaporation…
We then had a historic cold wave (for this early in September) plunge south out of the Arctic and through Europe.

We now have an unprecedented combination of hot and cold (ideal for strong thermal boundaries/weather fronts).
Read 12 tweets
Scott Duncan Profile picture
Sep 14
Insane full-winter scenes emerging from Austria right now. The historic September storm in Central Europe is delivering record cold, record early deep snow and heavy flooding rains.

This is Obertauern (resort elevation range 1600-2500 m).

For those who may not believe this report, the live webcams reveal all. Blizzard conditions with drifting deep snow. This camera is 1700 m elevation.

obertauern.com/en/service-inf…
Image
The storm came as no surprise. Weather models were in good agreement that exceptional cold, snow, rain and wind would impact Central Europe several days in advance. Austria is in the bullseye.

Read 6 tweets
Scott Duncan Profile picture
Sep 12
Shock to the system 🥶

Unusually strong cold is pouring south out of the Arctic into Europe right now. This is an ideal setup for deep fresh snow accumulations in the Alps and flooding in Central Europe.

This is about as cold as it gets this early in September.
Incredible contrast in temperatures.

This map shows how much cooler (🔵) or warmer (🔴) it is compared to average at this time of year. Image
This is one weather model estimation for fresh snow totals in the coming days. Well over 1 metre of fresh snow for the upper Austrian Alps expected with some places probbaly exceeding 2 metres.

Outstanding for this early in September.
Read 6 tweets
Scott Duncan Profile picture
Sep 5
Very impressive weather pattern in Europe right now.

Strong easterly winds and hot in Central/Northern Europe meanwhile heavy rain plagues the west with much cooler conditions. The heat is breaking records (for this time of year).

THREAD
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Many monthly heat records set in Germany 🇩🇪 yesterday... Beating some records which have stood for a long time (1895). Great summary here by @EKMeteo which links to comments by official @DWD_presse

@EKMeteo @DWD_presse It appears Norway has broken September national heat record, final numbers to be confirmed.

Impressive foehn effect to the west of high ground. The dry easterly winds in southern Norway is ideal setup for incredible temperatures in unusual places.

Read 5 tweets
Scott Duncan Profile picture
Mar 3
Truly outlandish.

Some places in Europe didn't just record their warmest February on record.... They went on to beat their warmest MARCH temperature levels.

[THREAD] Image
Effectively everywhere in the dark red shading smashed warmest February record - most by large margin. Austria 🇦🇹 has over 250 years of temperature record and nothing compares to this. Not even close.

Source: zamg.ac.at/cms/de/klima/n…
Image
Wiener Neustadt in the east of Austria was so warm that temperature of February 2024 exceeded the warmest MARCH record (data here since 1949).

uwz.at/de/a/waermer-a…
Read 11 tweets
Scott Duncan Profile picture
Aug 27, 2023
Heatwave going out with a bang in Europe.

Watch how the jet stream digs aggressively into Southern Europe. The atmosphere is primed for severe weather - unfolding right now...
This animation captures the transition from extreme heat (unprecedented for this late in August) to relatively cool conditions.

The variable shown here is the temperature at 850 hPa (usually around 1.5km above sea level). This can help show where our airmass is coming from.
The Mediterranean is also acting like an extra source of fuel for the storms. The sea surface temperatures are at record hot levels.

The Gulf of Lion (just south of France) is especially hot. The sea surfaces will likely cool dramatically during this breakdown.

You can access the satellite derived sea surface temperature data here:

The graph can be found here:
Read 7 tweets

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