Siberian Snow Cover Update

Ten days ago, we looked at the growing snow cover in the Northern Hemisphere.  This was the image for that post:

Click for larger image.

Click for larger image.

Here is the most recent image:

Click for larger image

Click for larger image

You can easily see the expansion of snow cover westward across Siberia.  Again, we don’t know anything about the depth of this snow nor the climatology of snow fall in the area.  We can view images like those above for any date since 1997.  I took a quick look at Northern Hemisphere snow cover for October 25 in previous years.  Where the Siberian snow coverage may have been less than that of previous years 10 days ago, it seems the current coverage is closer to normal.  In fact, if you meticulously examined each image over the previous years, you may say the current Siberian snow cover is slightly above average.

This all goes back to Paul Yeager’s post on the relationship between Siberian snow cover and U.S. snowfall.  As Paul and I have noted before, the information about snow in Siberia is limited, so it’s difficult to judge how this year relates to other years.  These snow cover maps are probably the best resource we have at present.  If you come across any others, please let me know.

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