Archive for April, 2020
April couldn’t have been more different to February for Western Europe with frequent Atlantic lows (active rossby wave train) bringing record rainfall to the UK. This ‘stuck’ pattern was abruptly replaced by only another stuck pattern, a blocked high (stationary wave) which brought 4 straight weeks without a drop of rain for some. The tap […]
Based on all the current parameters and model projection, the 2020 Atlantic Hurricane Season is likely to be busy one. However, let’s keep in mind that although 9 out of 10 factors can align perfectly, it just takes one factor to significantly suppress development or intensification in a seemingly perfect environment, e.g Saharan dust, wind […]
If you’ve read my latest articles and watched the videos then you’ll be well aware that our warm, wet winter was largely down to the warm ‘enhanced’ phases of the madden julian oscillation. The northward heat release fueled a highly active wintertime rossby wave train. At the end of March, the MJO finally weakened into […]
A persistent high pressure system anchored between Scotland and Scandinavia has led to a complete shutdown of ‘weather’ and produced significant April rainfall deficits from UK through Central Europe as a result. This blocking high has re-routed all weather north into Scandinavia and south into Iberia. 500mb height anomaly for April so far. Rainfall anomaly […]
What’s going on? We have gone from relentless rain to unusually dry in just 6-8 weeks. From almost UK-wide flood warnings in February/early March to little or no rain from March 19 to April 16. This was the 500mb height anomaly for February. This was the result. A record wet February for the UK. As […]
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