Gerontocrat, bbr1234 has been discussing positive snow anomalies for a while. You may find the thread "negative feedback of positive snow anomalies", https://forum.arctic-sea-ice.net/index.php/topic,1932.0.html, interesting. It has been set up to discuss this theory, which I personally don't subscribe to.
No worries
I have a question, though, that you or others may be able to answer:
Obviously solar insolation peaks in late June, but generally, NHEM temperatures peak in early/mid August.
For the Himalayas specifically, if abnormal snowcover is able to survive through to early July, would this translate into an earlier "end" of summer for surrounding regions, and the beginnings of additional accumulations far earlier than previously? (or rather, wouldn't that in effect result in year-round accumulations in the areas that remained abnormally snowcovered?)
Checking various weather stations in the Himalayas, it looks like snow levels are expected to climb to ~18,000 feet before dropping again after the next week or so. The incoming tropical cyclone over the Bay of Bengal is going to result in some absolutely *massive* snowfalls across the Eastern Himalayas, with upwards of 150" of snow predicted in a two-day timespan.
I would think that if current trends continue, we will eventually hit such a point that snow does begin accumulating in elevations where it normally melts, for the duration of "summertime". And as the Arctic continues to melt -- perhaps even enhanced by the newfound/growing fortitude of the cold pole surrounding the Himalayas, which could serve to encourage 500MB blocking to its north, in essence updrafting huge quantities of heat from both the Indian and Pacific Oceans into the Arctic -- the added atmospheric water vapor is going to accelerate this occurrence (IMO).
We could be talking about a large region of the globe entering an extended period of winter with only a brief/no interlude of "spring". Of course that doesn't mean the snow in these regions will see no melt whatsoever, but as long as the bulk survives the summer, it will (IMO) lend itself to a substantially earlier arrival of "fall" in the surrounding areas, and additional accumulations of snowfall in surrounding lower-lying elevations vs. what we have seen previously, further accelerating the shift.
It's difficult to describe what I am saying exactly and I'm not sure I've done it above, but if someone can either destroy or affirm my relatively inarticulate suppositions above, I'd appreciate it.