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Year: 2020

JMA winter update, another cold forecast?

by Dr. Simon Keeling -

It's interesting to see the JMA thoughts for the cold season periods, December through February. Below are a couple of charts, the top being 850mb temperature anomalies (that's at about 5000ft), the lower chart being 500mb height anomalies, where yellow is above average, blue below average. Notice on both charts the yellows

ECMWF 6-week outlook to late October

by Dr. Simon Keeling -

As the weather becomes very warm over the coming days, perhaps even hot, we may well think we are headed for the fabled 'Indian-summer' scenario. So, is this something we can expect to last? Here's the ECMWF 6-week forecast for the rest of September and most of October. 12th September to 18th

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