Cyclone Gudrun
Template:Short description Template:Distinguish Template:EngvarB Template:Use dmy dates Template:Infobox weather eventTemplate:Infobox weather event/ExtratropicalTemplate:Infobox weather event/EffectsTemplate:Infobox weather event/Footer Gudrun was a powerful storm which hit Denmark and Sweden on 8 January 2005, and Latvia and Estonia on 9 January 2005. The name Erwin was chosen by the Free University of Berlin, while the storm was named Gudrun by the Norwegian Meteorological Institute and was the name used in Sweden. Sustained wind speeds of Template:Convert with wind gusts of Template:Convert were measured in Hanstholm, Denmark – the same strength as a Category 1 hurricane.
The storm caused significant financial damage in Sweden, where the forest industry suffered greatly from damaged trees, as more than Template:Convert of trees were blown down in southern Sweden. This resulted in Sweden at the time having the world's largest surplus of lumber.
About 415,000 homes lost power in Sweden and several thousand of these were without power for many days and even weeks in some cases, as about 10,000 homes were still without power after three weeks.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The death toll in Sweden was 7<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> victims, making it one of the biggest environmental disasters in Swedish history, while four were killed in Denmark and one in Estonia.
Meteorological history

On 6 January 2005, a low pressure system developed at a frontal zone south of Newfoundland.<ref name="life history">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It moved into the central North Atlantic and was named 'Erwin' by the Free University of Berlin.<ref name="life history"/> Erwin strengthened rapidly and its pressure at the time of naming was Template:Cvt.<ref name="life history"/> Erwin moved quickly, and was already moving over Scotland and Northern Ireland on the 8th.<ref name="life history"/> In the UK, temperatures were noticeably higher after the passing of Erwin.<ref name="life history"/> On the 9th, Erwin had already moved into the Baltic Sea with a minimum central pressure of Template:Cvt.<ref name="life history"/> Over much of Central and Western Europe, temperatures were very mild.<ref name="life history"/> The next day, weakening Erwin was over Western Russia with a pressure of Template:Cvt.<ref name="life history"/> Erwin began slowing down as it moved into Central Russia. On 13 January, Erwin dissipated over Russia.<ref name="life history"/>
Impact
Carlisle and Cumbria flooding
In the UK, the main impacts of the storm were flooding in Cumbria and Carlisle, where 1,800 homes were flooded in the city.<ref>Template:Cite news</ref>
Sweden blackout and damage to forests
Gudrun is one of the strongest storms to impact Sweden in the last 100 years. It caused much damage to forests in Halland the southwestern part of the South Swedish highlands (Småland).<ref name=SMHIsmaland>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=SMHIGudrun>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Spruces were particularly hit by Gudrun, while other trees with a more steady root system fared better.<ref name=SMHIGudrun/> Damage was also exacerbated by the practice of clearcutting, leaving many trees exposed.<ref name=SMHIGudrun/> Gudrun also caused blackouts and disabled telecommunications infrastructure.<ref name=SMHIsmaland/><ref name=SMHIGudrun/>
Aftermath
Byholma Wood Stockpile
The cyclone created the world's largest wood stockpile, which Gizmodo lists as containing Template:Convert of wood as of May 2012. In Sweden, the total volume of wood from the trees struck down by the storm was about Template:Convert.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Political impact in Sweden
In her dissertation, "Natural Disasters and National Election", Lina M. Eriksson, found that the storm played a crucial role in the historic regime shift in the 2006 Swedish general election. The incumbent Social Democratic Party's poor crisis response to Gudrun, hitherto the most expensive natural disaster in Swedish history, significantly contributed to the incumbent's loss.<ref name="linam">Template:Cite thesis</ref> In a subsequent article in Electoral Studies,<ref>Template:Cite journal</ref> it was observed that the deficient storm response still swayed voters in the 2010 and 2014 elections.<ref name="linam" />
See also
References
- Danish page with wind speeds and satellite image - From the Danish Meteorological Institute (in Danish).
- Guy Carpenter report on Windstorm Erwin / Gudrun – January 2005 - A report for the insurance business with detailed information about the storm.