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3 Jul, 4 tweets, 2 min read
Huge waves crashing in the Dominican Republic as Tropical Storm Elsa passes just to the south.

🎥 Via @JeanSuriel

Latest from the @NHC_Atlantic on the track forecast available here: nhc.noaa.gov/graphics_at5.s… Image
Reports that the swell has been strong enough to hurl stones onto the coastal roads.

How things look from space via @zoom_earth

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More from @ScottDuncanWX

Scott Duncan Profile picture
5 Jul
Lapland under extreme heat right now. 34.3°C at Banak, Norway 🇳🇴 This level of heat has never been observed above 70 degrees north in Europe before.

Scandinavia has been in the oven for a while. A very hot June followed by a hot start to July. Widely 10-15°C hotter than average. ImageImage
More info on the Banak record here via @extremetemps

Also @mikarantane has been on the case with much more detail across other stations in the area.

Read 5 tweets
Scott Duncan Profile picture
30 Jun
I didn't think it was possible, not in my lifetime anyway.

+49.6°C in Canada 🇨🇦 That is 121°F!

This is the story of the Canadian heat record that was crushed on 3 consecutive days by an unfathomable margin of +4.6°C (+8°F).

This moment will be talked about for centuries.
Before this heatwave, the Canadian national heat record stood at 45°C. This record held since July 1937.

Along came 27 July and smashed this by a whopping +1.6°C. But we were not done here, the heatwave was just getting started...

The very next day, temperatures soared to a staggering 47.9°C, destroying the new record.

This did not last long though...

Read 4 tweets
Scott Duncan Profile picture
29 Jun
I can't believe I am writing this.

Canada 🇨🇦 has obliterated its national all-time heat record *for the second day in a row*.

Before yesterday, greater than 45°C had never been recorded. As far as climatology is concerned, this is deeply shocking.
This is what happened on 27 June

More observations from the area...

Read 5 tweets
Scott Duncan Profile picture
28 Jun
More extreme thunderstorms hammering Germany 🇩🇪 today.

This is Rottweil in the south-west of the country.

This is what you should absolutely not do...

Video via @R_F_Bolanz
The radar image is crazy.

Enormous cluster of thunderstorms, likely Mesoscale Convective System (MCS). Extreme flooding in southern Germany expected in the coming hours.

Radar image via @metdesk
Read 4 tweets
Scott Duncan Profile picture
25 Jun
Brutal heat building over the US Pacific Northwest and Western Canada right now will shatter many all-time heat records over the coming days.

The extent, intensity and longevity of this level of heat is absolutely mind-blowing.

THREAD
Yes, you are reading this correctly. Glowing white hot over +40°C (104°F) widely all along the western side of North America.

This is the animation in hourly detail. Let's not forget about how hot the nights will be.
The punishing heatwave has an incredible jet stream pattern.

The dome of heat will be encircled by the polar jet and this helps lift a sub-tropical jet branch almost into the Canadian Arctic.
Read 8 tweets
Scott Duncan Profile picture
22 Jun
Historic heat in the east and unseasonably cool in the west.

Europe has been split over the summer solstice, with enormous thunderstorms acting as the boundary between hot and cold.
A mesmerising meridional jet stream helps explain why the west-east contrasts exists.

Parts of Scotland had a frost last night while Finland nearly broke its all-time June heat record today.
Which side have you been on over the last few days?

Hot?
Cold?
Thundery?

GIF answers definitely accepted.

I will start...

London ⬇️
Read 5 tweets

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