Status:Ongoing analysis Material from: Linus, David L., Tim
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Discussed in the following Daily reports: |
Picture
1. Impact
On 6 March large parts of France was hit by the windstorm Zeus. Note that the name "Zeus", that purportedly came from the naming system of the Free University of Berlin, does not actually correspond to the weather system labelled Zeus on the Berlin charts. In spite of being probably the most costly European Windstorm of the winter season 2016/17 (losses ~270M Euros) Zeus (so called) was so small, and deepened and decayed so quickly, that it was never actually named on the Berlin charts.
2. Description of the event
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- The band of extreme wind gust well captured 4-5 days in advance
- The run from 5 March 00z was bad compared to earlier runs
6. Additional material
This case seems to provide evidence that ENS resolution was insufficient to capture the full force of the storm system (because it was so small):
The dynamics of Zeus, and investigations into the reasons for the poor forecasts of 5 March, were discussed by Tim Hewson at the the June 2017 UEF meeting - see ZeusOnly_fromUEF.pptx.