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Author: Dr. Simon Keeling

High pressure returning says CFS

by Dr. Simon Keeling -

Take a look at the latest weekly’s from the CFS. These are the 500hPa anomalies. Read from right to left (I’m turned them around to make them easier to read). Look at Week 1 (this week) on the right. The green colours show below average heights and hence lower pressure and more

September 2026 – Weather Guidance

by Dr. Simon Keeling -

+++ THIS FORECAST IS FOR PRIVATE CLIENTS ONLY AND MAY NOT BE DISTRIBUTED OR COPIED IN ANY WAY WITHOUT PRIOR PERMISSION. +++ SEPTEMBER 2026 - WEATHER GUIDANCE ================================== Issued: Sunday 30th August 2026 Contact: simon@weatherweb.net HEADLINES ========== + Mixed to start, mainly north + Warmer south and east + Cooler for all from mid month, few showers FACTORS AFFECTING SEPTEMBER

Time to go back to the NAO

by Dr. Simon Keeling -

  The summer months tend not to be the best for using the North Atlantic Oscillation (NAO) as a prediction tool for the coming weeks. However, as we enter late August and into the autumn months it starts to become useful again. Below is the NAO forecast from the CFSand it shows a

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