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Month: September 2025

Month’s End Synoptic Situation

by Daniel Graves -

An interesting synoptic set-up for the end of September; see below for the 500 millibar chart from GFS, averaged over the 5-day period of Sept. 29 through Oct. 3: A very strong signal for high pressure over Scandinavia and the Baltic States (the red H) means a settled end of September

September 2025 – Initial 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. +++ OCTOBER 2025 - INITIAL GUIDANCE ============================== Issued: Monday 21st September 2025 Contact: simon@weatherweb.net HEADLINES ========== + Drier than average overall + Bright start, best sun west + Damper mid-month + Fair end but then murky FACTORS AFFECTING OCTOBER 2025

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