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.
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. Nevertheless, our WRF simulations represent only three possible realizations of a very complex event, and there remain many opportunities to improve the simulation configuration.
(1) During the foehn storm, the 20CR ensemble standard deviation of mean sea level pressure (MSLP) remains small over Europe ([less than or equal to] 1.2 hPa; cf.