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Arctic heatwaves have happened before. Nothing to worry about then, right?
There has been so much skepticism but there is reason to be alarmed and this is why...
[The inconvenient follow-up thread]
![Arctic heatwaves have happened before. Nothing to worry about then, right?There has been so much skepticism but there is reason to be alarmed and this is why...[The inconvenient follow-up thread]](https://pbs.twimg.com/media/EbM_XfJWsAUrLGF.jpg "Arctic heatwaves have happened before. Nothing to worry about then, right?There has been so much skepticism but there is reason to be alarmed and this is why...[The inconvenient follow-up thread]")
![Arctic heatwaves have happened before. Nothing to worry about then, right?There has been so much skepticism but there is reason to be alarmed and this is why...[The inconvenient follow-up thread]](https://pbs.twimg.com/media/EbNLB-tXYAAi821.png "Arctic heatwaves have happened before. Nothing to worry about then, right?There has been so much skepticism but there is reason to be alarmed and this is why...[The inconvenient follow-up thread]")
There has been so much skepticism but there is reason to be alarmed and this is why...
[The inconvenient follow-up thread]
Despite being one of the COLDEST places on the planet - it gets hot in Siberia during the summer. This is not common knowledge.
However, the relentless warmth so far this year is record breaking. But 'Warmth' can be a misleading term... especially in winter.
However, the relentless warmth so far this year is record breaking. But 'Warmth' can be a misleading term... especially in winter.
And Finally...
The data I use is totally free. Please check it out:
Forecast data from the Global Forecast System: https://nomads.ncep.noaa.gov/
Climate data via @ECMWF ERA5: https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5
The data I use is totally free. Please check it out:
Forecast data from the Global Forecast System: https://nomads.ncep.noaa.gov/
Climate data via @ECMWF ERA5: https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5
A lot of local variation on shorter time scales can mask the background warming signal. Individual heatwaves can't be used to track the climate.
But a summer heatwave on top of the anomaly for 2020 so far is truly astounding from a global perspective.
But a summer heatwave on top of the anomaly for 2020 so far is truly astounding from a global perspective.
We are on track for 2020 to be the warmest year on record.
Even if 1 person sees the bigger picture from this thread - I will be happy.
Some of the issues we face are discussed in the original thread here: https://twitter.com/ScottDuncanWX/status/1273997213623033862
Even if 1 person sees the bigger picture from this thread - I will be happy.
Some of the issues we face are discussed in the original thread here: https://twitter.com/ScottDuncanWX/status/1273997213623033862
The @UNFCCC got hold of my tweet and highlighted that record breaking warmth was 17 °C hotter than normal in June.
This extreme has been present for months but remained hidden from public eye as 17 °C above normal in January is still well below freezing! https://twitter.com/UNFCCC/status/1274949855320956929
This extreme has been present for months but remained hidden from public eye as 17 °C above normal in January is still well below freezing! https://twitter.com/UNFCCC/status/1274949855320956929
This is why we must consider temperature anomaly. But what is temperature anomaly?
Anomalies show us how much warmer or cooler it is compared to average.
A temperature map of Siberia from January might still look cold - even if it is much warmer than average!
Example:
Anomalies show us how much warmer or cooler it is compared to average.
A temperature map of Siberia from January might still look cold - even if it is much warmer than average!
Example:
