There is an interesting ‘split’ in the Jet Stream today:
Recently it’s been a much more “Loopy” jet stream (as it does during times of cold phase PDO and / or low solar levels) with deeper Rossby Waves (rather like it was back in the ’60s).
Don’t really have much to say about it; just that it’s an interesting configuration. The last few months we had a cold West Coast and a very warm East Coast. That directly came from where the deep loops were located. Cold air in a deep down loop in the west, Caribbean tropical air being pulled north in a large upward moving loop.
Now that’s changed.
While I don’t know what happens with this kind of split (they don’t happen all that often and mostly impact areas away from me, so I’ve not noticed much) it ought to be interesting to watch. Perhaps bringing a bit of unusual or chaotic weather. The Weather Channel is reporting a lot of hail and some strong winds with storms in the middle of the nation.
One thing is clear, though: This has happened before. Both the deep Rossby Waves and the split jet stream. It is NOT in any way related to CO2 or to “global warming”. It’s just ordinary weather cycling. Very much like it was back in the ’60s and ’70s as near as I can tell. It reminds me of what I remember from the local weather reports then (the maps) and the weather events that I personally experienced and saw on the Nightly News.