Cyclone Herwart

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Herwart Ingolf
IR satellite loop storm Herwart/Ingolf on 29 October 2017
Path of Cyclone Herwart-Ingolf across Europe
(Part of the 2017–18 European windstorm season)
Area affectedDenmark, Germany, Poland, Czech Republic, Austria, Slovakia, Hungary.[1]
Date of impact29 October 2017
Maximum wind gust182 km/h (113 mph) (Luční bouda)[2]
Lowest pressure970 hPa (29 inHg)[3]
Fatalities11[4]

Cyclone Herwart was a

Svalbard Islands region, the latter splitting in two low-pressure areas late on 28 October.[6] The center of Herwart started rotating counterclockwise around the main low pressure area, passing over Norway, Sweden, Latvia and then losing power while moving over western Russia.[7]

In Denmark, which was hit on 28 October, the storm was named Ingolf.[8] In Hungary, the storm was named Nárcisz (Narcissus), a Hungarian female name whose name day is on 29 October.[9]

Meteorological history

[10]

Impact

The storm and rainfall caused death and destruction. Train connections were closed in Northern Germany,[11][12][13] and major bridges in Denmark were closed for traffic. Herwart caused disruption to the German energy market as the strong winds caused an over-supply of energy onto the German power grid. Prices for energy slipped into negative values as low as minus €83.06 per megawatt hour, with an average low of minus €52.11 (normal energy prices are €37 per megawatt hour). These values were the lowest since Christmas 2012. This can lead to a situation where Austria and Switzerland find it attractive to use the energy in their pumped storage reservoirs, where it can later be sold back to Germany.[14]

Herwart was not as strong as

Lothar (1999).[16] Herwart was responsible for the worst insurance losses in the Czech Republic since the storms Kyrill and Emma (2008).[17]

References

  1. ^ "Windstorm Herwart (Oct 2017)". www.rms.com. RMS. Archived from the original on 7 November 2017. Retrieved 30 October 2017.
  2. ^ "Extrémně silná bouře má třetí oběť. Tisíce lidí jsou stále bez elektřiny" (in Czech). Mladá fronta Dnes. Retrieved 1 November 2017.
  3. ^ "Tlaková níž Herwart priniesla nielen víchricu, ale aj zimné búrky - MeteoInfo.sk". meteoinfo.sk (in Slovak). 30 October 2017. Retrieved 12 December 2017.
  4. ^ "Extratropical cyclone Herwart loss put at EUR 252m by PERILS | Artemis.bm". Artemis.bm - The Catastrophe Bond, Insurance Linked Securities & Investment, Reinsurance Capital, Alternative Risk Transfer and Weather Risk Management Blog. 11 December 2017. Retrieved 11 December 2017.
  5. ^ "Analysis" (in German). Free University of Berlin. 28 October 2017. Archived from the original on 24 March 2019. Retrieved 5 November 2017.
  6. ^ "Wetterdienst warnt vor Sturm "Grischa" - Bahn befüchtet Probleme". www.wz.de (in German). 28 October 2017. Retrieved 30 October 2017.
  7. ^ "Analysis" (in German). Free University of Berlin. 31 October 2017. Archived from the original on 24 March 2019. Retrieved 5 November 2017.
  8. ^ "Stormen Ingolf rammer Danmark i nat". vejr.tv2.dk (in Danish). 28 October 2017. Retrieved 30 October 2017.
  9. ^ "Miért kapott kedves virágnevet a hazánkban pusztító ciklon?". 24.hu (in Hungarian). 30 October 2017. Retrieved 6 November 2017.
  10. ^ Haeseler, Susanne; Lefebvre, Christiana (30 October 2017). "Sturmtief HERWART sorgt am 28./29. Oktober 2017 für Orkanböen über Deutschland" (PDF) (in German). DWD. Retrieved 11 December 2017.
  11. ISSN 0044-2070
    . Retrieved 30 October 2017.
  12. ISSN 0044-2070
    . Retrieved 30 October 2017.
  13. ISSN 0044-2070
    . Retrieved 30 October 2017.
  14. ^ Zschäpitz, Holger (31 October 2017). "Strompreise: "Herwart" offenbart Wahnsinn der Energiewende". DIE WELT (in German). Retrieved 9 November 2017.
  15. ^ Schappert, Sebastian (28 October 2017). ""HERWART" - ein weiterer Herbststurm steht vor der Tür" (in German). Deutscher Wetterdienst. Retrieved 11 December 2017.
  16. ^ Herold, Christian (30 October 2017). "Thema des Tages - Archiv - Die großen Herbst- und Winterstürme der vergangenen 10 Jahre". www.dwd.de (in German). Deutscher Wetterdienst. Retrieved 11 December 2017.
  17. ^ "Storm Herwart insured loss estimate rising, now EUR 300m: Aon". Artemis.bm - The Catastrophe Bond, Insurance Linked Securities & Investment, Reinsurance Capital, Alternative Risk Transfer and Weather Risk Management Blog. 3 November 2017. Retrieved 7 November 2017.

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