 Subtropical storm Poly at its peak intensity. | |
| Meteorological history | |
|---|---|
| Formed | 4 July 2023 |
| Dissipated | 7 July 2023 |
| Subtropical storm | |
| 1-minute sustained (SSHWS/NWS) | |
| Highest winds | 80 mph (130 km/h) |
| Lowest pressure | 987 mbar (hPa);29.15 inHg |
| Overall effects | |
| Fatalities | 2 |
| Damage | Severe |
| Areas affected | United Kingdom,Belgium,Netherlands,Germany |
Part of the 2022-23 European windstorm season | |
Subtropical Storm Poly,also known as Cyclone Poly, [1] was an extremely violent European windstorm,and the first subtropical storm ever recorded over the North Sea according to a research conducted by the Utrecht University and the KNMI. [2] The storm affected the Benelux,Germany,and the United Kingdom during July 2023. The thirty-seventh windstorm and the first subtropical storm of the 2022–23 European windstorm season,Poly,was named by the Free University of Berlin on 4 July.
Contents
- Meteorological history
- Preparations and impacts
- The Netherlands
- Germany
- United Kingdom and Belgium
- Records
- Highest wind gust per country
- References
It later became the most intense summer storm to impact the Netherlands,bringing extremely severe gusts to the country,peaking at 148 km/h (92 mph) in IJmuiden. [3] [4] [5] In Germany,lesser winds of 80–97 kilometres per hour (50–60 mph) were recorded. [6] Poly was one of only three subtropical cyclones reaching a hurricane-equivalent intensity. Furthermore,Poly was the second-most powerful subtropical cyclone in terms of maximum sustained winds. It was also the third-most intense subtropical cyclone on record in terms of pressure,with a minimum atmospheric pressure of 987 mbar.
In total,two fatalities occurred:one in the Netherlands, [7] and another in Germany. [8] Poly caused at least € 50,000,000 (2023) in damage,potentially exceeding € 100,000,000. [9] There was a mild storm surge in the Netherlands due to Poly,which caused limited floodings in combination with a large amount of precipitation.
