The freysnes windstorm

Hálfdán Ágústsson*, Haraldur Ólafsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A devastating windstorm in SE-Iceland is studied with the help of observations from automatic weather stations and high-resolution simulations. In this windstorm there is at the same time a strong downslope acceleration of the flow and acceleration at the edge of the mountain. The downslope windstorm is associated with strong wave breaking below a reverse wind shear in the lower troposphere. The method of Brasseur is applied for calculating the gusts. In the downslope flow, the mean wind is underestimated by the model, but a high observed gust factor is reproduced in the calculations. In the corner wind, the mean wind is reproduced, but the gust factor is somewhat underestimated by the calculations.

Original languageEnglish
Pages (from-to)517-520
Number of pages4
JournalHrvatski Meteoroloski Casopis
Issue number40
Publication statusPublished - 2005

Other keywords

  • Corner wind
  • Downslope windstorm
  • Wave breaking


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