Here, we reconstruct a high-impact foehn storm (definition in AMS 2014) in the Swiss Alps that occurred on 15 February 1925, and we model the associated losses on a local scale.
The foehn storm of 15 February 1925 ranks among the most hazardous windstorms in Switzerland since the mid-nineteenth century (Stucki et al.
Here, we extend these latest methods with a modeling chain that allows reassessing the high-impact foehn storm of 15 February 1925 on synoptic to mesogamma scales.
Streiff-Becker's conceptual cross section of the wind field through Glarus on 15 February 1925 shows further interesting features of the foehn storm (Fig.
4, a section of the 3-km domain) provides a comparison of the strongest modeled winds during the foehn storm with approximate damage locations at a mesogamma scale.
With our approach, we model the potential economic losses from the 15 February 1925 foehn storm using present-day asset distributions in Switzerland.
In general, the pattern of simulated losses corresponds well with the pattern of reported losses associated with the foehn storm (Fig.
Our analyses of the 20CR ensemble mean, the 20CR ensemble members, and the three WRF simulations (DEM, #27, and #51) indicate that the 20CR ensemble mean and the DEM are suitable estimates of the initial and local-scale atmospheric conditions for this historical foehn storm.
Accordingly, selected information from the downscaled members #27 and #51 provides evidence of a more probable versus an outlier simulation over the core period of the foehn storm (see text).