It’s a bird; it’s a plane—no—it’s a polar vortex! AAAAAGH!
The jet stream wiggled far to the north in the West and dropped south in the Midwest, bringing cool weather. Source: European Ensembles (ECMWF MODEL)
Relax; during the third week of July, we had a cold front. It was a bit stronger than normal and reduced July temperatures between 10Ëš–30ËšF. Around the Great Lakes, it almost felt like autumn. Actually, it was refreshing, but some people needed to slip on a sweater. If you lived in the sweltering West, you were envious.
However, in the headlines a scary polar vortex was going to slam the Midwest. Anyone who remembers last winter’s polar vortex had a moment’s pause. Was frost going to hit the garden? Were the crops going to die? Were we going to be buried in snow?
This July’s weather pattern was compare (erroneously) to last winter’s polar vortex. (Source: NASA)
No, we were hit by a cliché!
Look, it’s hard for comfortable summer weather to get any attention. This summer, weather reporting is competing with lots of scandals. Northern Canadian temperatures are really hot, but sweating Inuit or Eskimos don’t make headlines. However, the jet stream is dipping unusually far south in the Midwest. The last time this happened, it was the frigid Polar Vortex, and it was fun to be a weatherman last winter. Some weather people warned that the Polar Vortex was coming back and made headlines.
Actually, it is only a wiggly jet stream. The jet stream winds form on the boundary between cool atmosphere and warm atmosphere. Normally they tend to surge north, then south, then north again. However, early this month, Japan was hit by a category 4 super typhoon. Typhoon Neogori then swirled north and pushed a lot of hot, humid air unusually far north. The jetstream veered unusually far north, so California and Western Canada were hot. Then it plunged south, and the Midwest got a cold front.
The eye of Super Typhoon Neogori, the storm that shoved the weather patterns around. Source: NASA, the Space Station
Notice, this was not a real polar vortex, just a “ridge” or southern drop of the jet stream. It was a cool front, a bit stronger than normal. But for a few days, a wiggly jet stream sure collected some scary headlines!
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It was 52 degrees at 5:30 a.m., a bit chillier than I'd like, but one thing I've learned about weather --I can't do anything about it--I'm just thankful for it!!
Here in Eastern TN., it has been the most delightful spring and summer we've seen since I have been here for 12 years. Simply ideal weather. Moving here from San Francisco, the humidity here drives me inside before 11AM. This summer, it has been very green, with rain nearly every 3 to 4 days. I might add that we have thunder storms and lightening, rather unusual for the Bay area except for this year, when I hear lightening has been acting up. What is that all about? A couple nights ago. we had a ouple storms move through here that produced a tornado and the most terrific electrical storm. That was scary and beatiful at the same time.
I live in south Puget Sound in WA state. we have th best weather in the country. Can't complain.
I live in the UK and our bad weather in the UK during this last winter was caused by a Jiggly or meandering jet stream that when it got to the UK stuck over us for more than 2 months giving us the wettest, windiest weather and storms not heard of since records began. I hope this was just a short Jiggle and does not get stuck over us again as we are having the hottest summer in a long while and we are loving it.
I'm from the USA state Missouri and I know what ya talking about, except it's opposite the weather here is beautiful! Well like one day it's in the 90s then the next day the 80s!we say our state is bipolar lol! Enjoy your weather my friend!
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