south foehn
From Glossary of Meteorology
A foehn wind blowing from south (northern Italy) to north (Switzerland, southern Germany, and western Austria) over the Alps.
Because these winds blow from a warmer region to a cooler region, they are often accompanied by dramatic temperature and wind speed increases. The south foehn often results from flow in the warm sector of a cyclone system and thus it often occurs ahead of a cold front.
