Monthly Archives: May 2020

It’s an indisputable fact that air pressure differences have an extraordinary link to practically all parts of our planet’s weather system. Forecasters talk about it every day, how local pressure is changing and what changes in weather to expect along … Continue reading →

I need to quickly add a few words of follow-up to yesterday’s letter regarding jetstream activity, where it was noted that little or no high-speed wind was being recorded along the line reserved for the “perimeter” pathway. This is the … Continue reading →

Today the weather maps are providing us with another vivid illustration of the way extreme temperature anomalies are formed. The process involved in this instance is exactly the same as the one that formed the big anomaly in the Arctic … Continue reading →

Some things to clarify. The “thesis” I wrote about yesterday refers only to a single event. It purports to offer a reasonably complete story of how the existing major temperature anomaly in the Arctic came into being. The story has … Continue reading →

Scientists have a new theory about what is causing the unusual warming of the Arctic region, as reviewed by an article in Scientific American.  The same theory is said to have applications to warming in other parts of the globe.  … Continue reading →

Today I want to talk mostly about the global temperature anomaly chart, paying special attention to the set of numbers below it. Every one of the large anomaly areas that you see on the map has its own story to … Continue reading →

I want to show you a really neat way to trace out the locations of all the major jetstream pathways and to see good evidence of the circumstances that cause strong and active high-speed jets to be positioned in the … Continue reading →

The small doughnut-shaped jetstream we were looking at as recently as Monday is now gone, and with it the island of light red that had popped up inside of the green zone.  The cause is not hard to find.  A … Continue reading →

More jetstream analysis today. There are some things I want to nail down for the sake of added clarity. I have been telling you there are three major jet-producing pathways in each hemisphere—two of which in the north are now … Continue reading →

The animated version of precipitable water streams is well worth a good look right now, and for at least a few more days.  Go ahead and open the link at http://tropic.ssec.wisc.edu/real-time/mtpw2/product.php. We want to make a comparison of current overall … Continue reading →