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Snow & Ice coverage in the Northern Hemisphere Winter 2020/21


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11 hours ago, Snow Dragon said:

Big difference between today and this time last year

cursnow_asiaeurope.thumb.gif.b4335fbd469e9903475ed67b55a5d3f3.gifims2019259_asiaeurope.thumb.gif.fb728500e917408c6a9bb66698583d36.gif

Hopefully there will be a big increase later in the month and especially October.

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Siberian snow at last. Looks like an area larger than the UK just got dumped on  

Noticed we didn't have Snow & Ice thread yet for this year, one of my favourites of the year. So here's the latest offering:  

Well, well, well.... Checked out US NIC early, as I am out in the morning....  Snow cover -    small reductions in both East and West. But Its an absolute killer for ice extent.....

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5 hours ago, Don said:

Hopefully there will be a big increase later in the month and especially October.

Certainly won't be any big increases for most of this month, dry, warm and no cold is on the menu for the foreseeable. 

Quite extraordinary charts and no doubt unprecedented, curious how it all plays out. 

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1 hour ago, Geordiesnow said:

Certainly won't be any big increases for most of this month, dry, warm and no cold is on the menu for the foreseeable. 

Quite extraordinary charts and no doubt unprecedented, curious how it all plays out. 

We want to see big increases during October.

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23 hours ago, Frost HoIIow said:

I've been on American weather forums in the past and it's garbage to say they don't talk about snow cover to their north because they do, they don't completely ignore it. Given the north is practically the main source of cold for the states as well. Whereas at the right time of year in the UK our coldest is from the east off the continent - sometimes as far as Siberia. Hence why it's talked about on here often and for good reason.

well done you don't even live in N America im talking about forecasting agencies and amateur seasonal forecasters not baffons who hang out in weather forums

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3 hours ago, cheeky_monkey said:

well done you don't even live in N America im talking about forecasting agencies and amateur seasonal forecasters not baffons who hang out in weather forums

In your original post and the subsequent posts that followed, you never mentioned forecasting agencies or amateur forecasters. You specifically asked why no-one on here talks about North America! 

Edited by Wynter
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5 hours ago, cheeky_monkey said:

well done you don't even live in N America im talking about forecasting agencies and amateur seasonal forecasters not baffons who hang out in weather forums

I don't live there no well spotted but clearly know more about what's said by knowledgeable people over there on forums like these. And people in here are buffoons? I think that's a bit unfair. There's a lot of people in here that spend time & effort into the forum and these people clearly know their stuff. Netweather wouldn't be netweather without them.

Edited by Frost HoIIow
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22 hours ago, Don said:

We want to see big increases during October.

Well you better hope so because the forecasts are no better to get snow cover in September. If anything, things could get worse as the last few ECM runs want to send potentially record breaking heat for September up Western Russia and remarkably the vast majority of Siberia are still under positive upper air temperatures and high pressure. 

 

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8 hours ago, Geordiesnow said:

Well you better hope so because the forecasts are no better to get snow cover in September. If anything, things could get worse as the last few ECM runs want to send potentially record breaking heat for September up Western Russia and remarkably the vast majority of Siberia are still under positive upper air temperatures and high pressure. 

 

Latest ECM doesn’t look bad to me, plenty of cold developing and a continuing cold pool Greenland .  Also there is a larger finger of cold air punching south further east.  Classic very meridional jetstream, and mirrors very closely the year without a summer set up of 1816.  Interesting indeed.

 

 

 

BFTP

E0A56AFF-9D47-48A5-AEA5-666B69F5DE98.png

Edited by BLAST FROM THE PAST
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10 hours ago, Geordiesnow said:

Well you better hope so because the forecasts are no better to get snow cover in September. If anything, things could get worse as the last few ECM runs want to send potentially record breaking heat for September up Western Russia and remarkably the vast majority of Siberia are still under positive upper air temperatures and high pressure. 

 

Well, that's all we can do because what will be will be!

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42 minutes ago, BornFromTheVoid said:

Big increases in the Beaufort Sea are likely to mark the beginning to the refreeze season for Arctic sea ice.

Animation9_17Small.thumb.gif.89c0dd5670c42c48077dfad1731564ed.gif

BFTP...

I know we frequently do not see eye to eye, but I have been following the developments of your graphics over on the ASIF.

Can I say that they are superb?

It certainly would seem that the end of the sea ice melt season will be declared in the Arctic later today when PIOMAS issues its half monthly statement. 

A gain of 104K km2 in extent on Jaxa seems to be based on the rapid infill in the Beaufort Sea as your graphics demonstrate.

However whilst freezing will be rapid in the western Arctic (US side). I expect with current forecast conditions hardly any gains just yet in the East, whist the air temps remain so high there. 

DMI Arctic temps(above 80degrees) show the rocky path to an Arctic refreeze

image.thumb.png.a3062d769035d854be9cd5a97038053d.png

 

Whilst the Polarstern data shows the gradual lowering in the Polar  region -

https://www.awi.de/fileadmin/user_upload/MET/PolarsternCoursePlot/psobsedat.html

The last column is the temperature in degrees Celsius.

89.1 107.4 20-09-18 08:00 4 330 -9.4

89.1 107.4 20-09-18 07:00 4 310 -9.4 

89.1 107.2 20-09-18 05:00 4 310 -9.2

89.1 107.0 20-09-18 03:00 5 300 -9.1

89.1 107.0 20-09-18 02:00 4 290 -8.9

89.0 107.1 20-09-18 01:00 5 300 -8.8 

89.0 107.2 20-09-18 00:00 5 290 -8.2

89.0 107.5 20-09-17 21:00 5 270 -7.7

89.0 107.5 20-09-17 19:00 4 280 -7.1 

89.0 107.1 20-09-17 16:00 4 270 -6.8

89.0 106.9 20-09-17 14:00 3 230 -6.5

89.0 107.1 20-09-17 12:00 2 200 -6.2

 89.0 107.8 20-09-17 09:00 1 360 -6.0

89.0 108.2 20-09-17 06:00 5 130 -5.1

89.0 108.8 20-09-17 00:00 9 130 -4.7 

89.1 109.5 20-09-16 08:00 5 170 -4.0

Happy ice refreeze  season to one and all.

Now where is that snow?

MIA

 

 

  

Edited by Midlands Ice Age
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Indeed, as alluded to there's a high over Siberia which forms in about 4 days but even as it pulls cooler uppers it does not have the means to produce much snowfall. As our Western European high builds that just means a very dry Russia and it pushes warmish uppers with it.

 

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Even for the time of year this isn't a great profile within the Arctic Circle in terms of quickening sea ice formation, might even stall it a bit...

 

UN144-7.GIF?21-19

Edited by The Eagle
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8 minutes ago, The Eagle said:

Even for the time of year this isn't a great profile within the Arctic Circle in terms of quickening sea ice formation, might even stall it a bit...

 

UN144-7.GIF?21-19

Why?  A snapshot?  Greenland really doing well re SMB....worth looking at whole run and see how it develops

 

BFTP

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