Hurricane Ylva

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Ylva (Reinhard)
Ylva between Iceland and Norway, Nov 23, 1800 UTC
Ylva between Iceland and Norway, Nov 23, 1800 UTC
weather condition North Atlantic low
Wind force hurricane
Data
education 18th November 2017
Hurricane strengths 23rd November 2017
Decay November 25, 2017
Mean wind speed 122 km / h ( Sømna , 11/23/2017 )
Top gust 163 km / h ( Sandhornøya , 11/23/2017 )
consequences
affected areas North Scandinavia

Ylva (in Germany Reinhard ) was a storm in hurricane strength , of from 22 to 24 November 2017 over northern Scandinavia moved.

Meteorological overview

Around November 18, a powerful low-pressure vortex forms in a jet-stream vortex over Canada in the central North Atlantic region . From an Azores High streamers (Zoe) pushed over southern Europe, he crossed over the British Isles in the North Sea . Here it combined with high altitude cores and became a severe storm under the influence of a cold air ingress over Greenland to the rear of the low. The winds on the front face from the south-east over the Scandinavian Peninsula , a rare storm course, due to the main train path of the core far away from the North Path coast, already halfway to Iceland , and high pressure over the polar sea .

The Norwegian weather service measured 23 on the island Sandhornøya (on Vatvigfjellet ) a maximum wind speed of 33.9 m / s (122 km / h), with peak gusts of 45.4 m / s (163 km / h on Kvaløyfjellet at Sømna ).

The aging low caused strong winds from Brittany to the Baltic States , and disintegrated over southern Scandinavia on November 26th.

Ylva was the worst storm in northern Scandinavia since Narve January 2006.

The extreme weather fell into a series of extraordinary storms from mid-September of the year, with storm low Sebastian and from the beginning of October storm low Xavier over Ireland hurricane Ophelia , the extremely fast moving storm Herwart and the Mediterranean Orcan (Medicane) Numa / Attila just before Ylva, such as the Föhnorkan Yves afterwards. They were all caused by an extremely fluctuating and unstable west wind drift , strong turbulence on the polar front and a highly active North Atlantic and Arctic oscillations .

The name Ylva was given by the Norwegian Meteorologisk Institute, the Free University of Berlin named him Reinhard .

Effects

Because the southeast storm over northern Sweden and the Scandinavian mountains in Norway blew offshore towards the sea, the storm peaks were very different locally in the valleys. Northern Norway was badly hit. In the other Scandinavian countries the effects were not very significant.

Norway

The area around Bodø and Narvik in Nordland and the Troms area on the 23rd, and Finnmark on the 24th, were particularly affected in Norway , although there were no more extreme winds.

The damage in Norway remained comparatively low, as strict building codes were issued there after the New Year's Eve in 1992 with its billions in damage . Nevertheless, there was widespread damage to buildings, vehicles and ships as well as several dozen injured people, traffic obstructions caused by snowstorms, power outages due to destroyed lines and serious forest damage.

Sweden

In Sweden , where the storm was classified in Category 2 (severe), the consequences were limited to traffic obstructions in the Norrland area .

Web links

Commons : Sturm Ylva  - Collection of images, videos and audio files

supporting documents

  1. ↑ a b c d Har målt vind på 163 km / ti Nordland. Meteorologisk Institutt: yr.no: Nyheter , November 23, 2017 - with measured value table and map.
  2. ↑ a b Forecast for Sat. November 17, 2017, 12:00 UTC , DWD weather map, website of the Free University of Berlin;
    Modèles - Archives des réanalyses du NCEP, November 17, 2017, 19:00 locale. Meteofrance: meteociel.fr (esp. Jet stream 300 HPa (Hem. Nord) ).
  3. ↑ Forecast for Tuesday, November 21, 2017, 12:00 UTC , DWD weather map;
    Weather situation as of November 21, 2017, 12 UTC. ZAMG Current weather map and map archive ;
    NCEP, November 21, 2017, 7:00 p.m. locale. meteociel.fr (especially Jet stream 300 HPa (Hem. Nord) ).
  4. ↑ a b forecast for Wed. 11/22/2017, 12:00 UTC , DWD weather map; Weather situation as of November 22, 2017, 12 UTC. ZAMG Current weather map and map archive ; NCEP, November 22nd, 2017, 7:00 p.m. locale. meteociel.fr.
  5. ↑ a b forecast for Thursday, November 23, 2017, 12:00 UTC , DWD weather map; Weather situation as of November 23, 2017, 12 UTC. ZAMG Current weather map and map archive ; NCEP, November 23, 2017, 7:00 p.m. locale. meteociel.fr.
  6. ↑ a b Most powerful wind forecast på elleve år. Meteorologisk Institutt: yr.no: Nyheter , November 22nd 2017 ('Highest wind forecast for eleven years').
  7. ↑ Pøsregn i sør, ekstremvær i nord. tv2.no, November 23, 2017 - with flow map.
  8. ↑ a b c Stormen «Ylva» herjer i North-Norge - Stormen blåser «feil vei». Therefore, «Ylva» can be used to end the failure of the skader. Dagbladet.no: Nyheter , 23 November 2017, especially section Lunefull storm ('The storm blows the "wrong way": moody storm').
  9. ↑ Forecast for Fri. 11/24/2017, 12:00 UTC , DWD weather map; Weather situation as of November 24, 2017, 12 UTC. ZAMG Current weather map and map archive ; NCEP, November 24, 2017, 7:00 p.m. locale. meteociel.fr.
  10. ↑ Forecast for Sun. 11/26/2017, 12:00 UTC , DWD weather map; Weather situation as of November 26, 2017, 12 UTC. ZAMG Current weather map and map archive ; NCEP, November 26, 2017, 7:00 p.m. locale. meteociel.fr.
  11. ↑ Weather and Climate - German Weather Service - Topic of the day - Archive - Sebastian, a stormy fellow. Retrieved May 15, 2018 .
  12. ↑ a b Front passage over Germany. DWD: Topic of the day , 25 November 2017
  13. ↑ See naming for weather events .
  14. ↑ Nå for Finnmark restene av «Ylva». Meteorologisk Institutt: yr.no: Nyheter , November 24, 2017.
  15. ↑ Bygg som mist tak under stormen er for dårlig dimensjonert. Tekniske Ukeblad, tu.no: Artikler , January 14, 2015 (accessed November 28, 2017; via Sturm Nina / Hermann).
  16. ↑ Forsikringssakene Strommer inn etter "Ylva". NRK.no, last update November 24, 2017 ('Insurance claims are included in "Ylva").
  17. ↑ Ylva gir null sikt på E6: - I understand case for any sove over i bilen. Dagbladet.no Nyheter , November 23, 2017.
  18. ↑ Her ligger deler of 12,000 cubic km skog strødd etter at "Ylva" feide over området. NRK.no, last update November 25, 2017 ('Insurance claims are included in "Ylva").
  19. ↑ Stormen Ylva skapar kaos. Matilda Träff / TT, November 23, 2017; z. B. in: folkbladet.se: Nyheter .