Earth has a fever in more ways than one. Some places averaged + 5-7 °C warmer than normal for the ENTIRE YEAR of 2020.

An enormous area of anomalous warmth plagued Arctic Siberia effectively all year but it was not just the Arctic where we saw record shattering warmth.

THREAD
Another way of looking at it... Very few cold blobs left. La Niña developed and shows up in the Pacific.

The climate is not changing uniformly, the Arctic is warming much faster than the rest of the world.

Data: @CopernicusEU and compares to 1981-2010 average.
JANUARY was joint hottest January globally on record according to NASA GISTEMP v4 (joint record with 2016).

Profound winter warmth for North America plus Europe and Asia.
FEBRUARY was second hottest on record (1st place is still held in 2016).

The winter 'warmth' in Europe and Asia was just insane.
MARCH: A cold Canada, Greenland and Svalbard... but obvious warmth still striking across the continents, particularly northern/central Asia.

This was the second hottest March on record (2016 still holds the record).
APRIL was hottest on record. North America pretty cool, quite impressive actually. But elsewhere...

Heat in the Arctic becoming quite a theme. Stick with me...
MAY... hottest on record for month of May.

Do I need to point out northern parts of Asia any more?

Permafrost thawed and Russia suffered extreme diesel disaster. It began at the end of May. Criminal investigation ongoing: en.wikipedia.org/wiki/Norilsk_o…
The Arctic circle broke its all time heat record in JUNE and the globe recorded its hottest month of June on record.

Arctic heat record: Siberian town called Verkhoyansk logged a temperature of 38° Celsius (100.4° Fahrenheit) on 6 June.
JULY was second hottest on record (July 2019 was hotter globally).
AUGUST... 3rd hottest on record.

Siberia and parts of North America really in the furnace, quite literally as wildfire season blazed into unchartered territory.

1,032,648 acres were lost in the August fire complex (Northern California) alone in. Record books were re-written.
SEPTEMBER... hottest on record.

South America stepped into the furnace with the start of one of the most profound/long-lived and widespread heatwaves in Southern Hemisphere history.

Siberia still doing its thing. Greenland turned blue though.
OCTOBER... 5th hottest on record globally.

Arctic sea ice melted to record low extent for month of October and South America and started the month with extreme heat. Eastern Europe/Asia boundary set heat records widespread.

Cool north America and developing La Nina...
NOVEMBER marks the 6th all time monthly heat record in 2020. 2020 now contains at least half the monthly heat records globally.

Arctic looks like it is on fire here. This is not surprising given the lack of sea ice. Textbook Arctic amplification.

Cold in central Asia.
DECEMBER... well... I await official stats for ranking.

Deep cold again in Central Asia but warm pretty much everywhere else. North America, Northern Europe and Africa breaking records.

Stay tuned.
This is not an exhaustive list of records and profound weather/climate events from 2020.

A more organised collection of graphics exists on my instagram: instagram.com/scottduncanwx/ ImageImage
COVID and politics took centre stage in 2020 for very obvious reasons.

This thread serves as a reminder that the climate has changed and is continuing to change. Changes are not uniform, I hope everyone can see this.

To those who kindly keep pointing out that my previous animations have the world spinning the wrong way.

I have corrected this. Happy new year 👍
We are awaiting official verification as to whether 2020 was the warmest year on record.

Inevitably top 3. Probably at least 2nd. Could be hottest.

JMA preliminary data has 2020 at the top spot.

It is worth noting that some months are warming faster than others too.

Often January, February and March have the largest anomalies, some of which already break the +1.5 °C anomaly (comparing to levels similar to pre-industrial times).
Oh... I nearly forgot.

This might come in useful. Solar and carbon graphs combined with temperature.

scottduncanwx.com/carbon-vs-sola…

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More from @ScottDuncanWX

1 Dec 20
Parts of the Arctic averaged up to +14 °C above normal for the entire month of November.

Preliminary data suggesting we witnessed the hottest November globally on record.

2020 is on track to be the hottest year on record.

[THREAD]
Cold in Canada,
Cool La Niña in the pacific,
Cold in Central Asia...

But that's about it for cold.

Enormous warm anomaly over the Arctic from Arctic amplification with significant heat records tumbling in Australia.
Speaking of Australia (again)...

-Hottest November ever.
-Hottest Spring on record and +2 °C above the 1961-1990 average.

First ever spring with an anomaly above +2 °C.

🇦🇺 Stats via @BOM_au ImageImage
Read 14 tweets
30 Nov 20
Impressive volcanic eruption on the island of Lembata, Indonesia 🇮🇩 yesterday at 9:45 am local time.

Ash column reached over 55,000 feet (17 km) into the atmosphere. The white cloud at the top is called Pileus.

🎥 by Teguh Dwi Hartono.

You can see the eruption from space.

You can see it for yourself 👇

worldview.earthdata.nasa.gov/?v=122.0113731…
Pileus clouds?

They are amazing and are an indication of air rising very quickly through the atmosphere.

They are usually indicators of severe weather above a cumulonimbus. But explosive volcanic eruptions do a similar job.

Photo is a separate eruption Sarychev Peak 🇷🇺
Read 4 tweets
29 Nov 20
Japan witnessed a massive fireball 1:30 am local time on 29 November 2020.

Oh... and #BirdFlu is trending.

We only have 32 days, 16 hours 9 minutes and 15 seconds until 2021.

Is it just me or are there a lot of these recorded in Japan?

22 November 2017.

Read 5 tweets
16 Nov 20
5 years in a row of category 5 hurricanes. This has not happened in recorded history going back to 1851.

#Iota is about to make landfall as a powerful category 5 storm. Nicaragua and Honduras can't take another major hurricane. It was only 2 weeks since category 4 #Eta.
The track of #Eta overlaid projected landfall of #Iota is insane. Two major hurricanes within a fortnight in November. Eta struck Nicaragua on 3 November.

Check out this comparison by @WeatherProf.

Heartbreaking.

Here are some of the beasts from the last 5 years.

Read 4 tweets
14 Nov 20
This is just cruel.

#Iota is the 30th named Tropical Storm and is expected to become a major Hurricane by early next week

Iota is heading for Central America, likely to hit communities still trying to recover from Hurricane Eta which struck only a few days ago.

THREAD
#Iota is the 30th named storm of this record breaking hurricane season. Winds will be violent but attention quickly turns to flooding potential, again.

Major landfall is looking likely early next week. Honduras 🇭🇳and Nicaragua 🇳🇮 in the immediate firing line.
The track of hurricane #Eta is first image and latest forecast for #Iota from @NHC_Atlantic is the second image.

It is important to note that there is still track and intensity uncertainty and it is crucial to follow official forecasts at nhc.noaa.gov ImageImage
Read 4 tweets
5 Nov 20
It's like the planet has a fever.

October 2020 helps show the impacts of a changing climate. The Arctic did not freeze due to warmth stored in vast areas of open water - this was a record breaking month for lack of ice.

The air temperature was extremely high compared to normal.
The minimum ice extent did not beat the all time low record in September.

But we did drop all time record low levels through parts of October. Siberian seas suffered the heaviest lack of ice. Image
You can see how much warmer than normal the sea surfaces were through October here.

A baking hot summer and serious lack of ice meant that the refreeze struggled.

The weather pattern also meant that records were achievable more easily.
Read 7 tweets

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