So it’s been blowing for two days, and no end in sight. This is a good time to go to the Jet Stream Animation page, which is always in the margin of the blog, but in case you didn’t notice, here’s the link. What’s fun here is that the page tells you how to choose an animation. The default is a two-day animation, ending today (the day of your search) but you can get seven days, so you could put the 21st as a start day, or, in fact, choose any seven days. and get a longer view.
The jet stream is an upper wind that races along year round, sometimes, flowing mostly above Canada, and other times dipping quite a distance south. Of course it drags the air below it, so it can have a very strong effect on our lower winds if it is anywhere nearby.
The darkened area on the map is where the wind is at least 60 mph in the jet stream. With each step inwards, marked by a dotted line, the speed is 10 mph faster. Sometimes the center is 160, sometimes even higher. The ground speed is much lower of course, but I was told that even the ground wind reached 80 mph in gusts yesterday, and there were some roof parts flapping in various places around town, as well as mailboxes toppled.
From the looks of the stream, there’s plenty more wind coming, but perhaps not quite so strong. The center is actually flowing somewhat south of us as well, so it could be worse.
I wish I could import the image, but anyway, it’s interesting to watch.