20141103 01 Foehnorkan Alpen Foehnsturm Zuerichsee

Quick Facts

Type of Event	Foehn storm (south foehn)
Verification State	QC1
ESWD	Not reported
Location	Alps and north of Alps, but extraordinary around the Lake of Zurich
Time / Duration	Long-time event with foehn break through at Lake of Zurich in the night from 3rd to 4th November 2014
Date	03.-04.11.2014
Magnitude / Dimension	- 04.11.2014: The highest measured wind gust of the foehn storm was measured with 188 km/h at 13.10 UTC on top of Gütsch - 04.11.2014: On top of Titlis a wind gust of 187 km/h was measured - 04.11.2014: On top of Lauberhorn a wind gust of 185 km/h was measured at 10.00 UTC - 04.11.2014: On top of Piz Martegnas a wind gust of 180 km/h was measured - 04.11.2014: At Ebenalp (1640 m) a wind gust of 172 km/h was measured at 05.00 UTC - 03./04.11.2014: Some mountain/hill tops measured wind peaks of between 120 and 188 km/h (see list below) - 04.11.2014: In Brülisau-Kastenbahn AI (925 m) a wind gust of 150 km/h was measured at 00.00 UTC - 04.11.2014: In Safien-Thalkirch GR (1700 m) a wind gust of 141km/h was measured - 04.11.2014: In Bad Ragaz SG a wind gust of 131 km/h was measured at 13.40 UTC (second highest wind gust for that weather station related to foehn) - 04.11.2014: In Altdorf UR a wind gust of 127 km/h was measured at 12.10 UTC - 03./04.11.2014: In the classic foehn valleys wind gusts mostly between 110 and 120 km/h were measured (see list below) - 04.11.2014: In Wädenswil ZH at the Lake of Zurich a wind gust of 107 km/h was measured at 01.15 UTC (new record for that weather station regarding a wind gust related to foehn)
Damage / Impact	- Reports of blown off roof tiles at several locations in the Rhine Valley - 1 damaged scaffolding (Sevelen SG) - 1 blown off tent roof (Schaffhausen SH) - Blocked or closed streets and railway tracks - Downed trees (Chur GR) - Damaged front/curtain of a school building (Mörschwil SG)
Fatalities	-
Injuries	1 severely injured man who was blown off a roof (Sevelen SG)
Report Source	Report in a weather forum, data from official weather stations
Remarks	The nightly foehn breakthrough at the Lake of Zurich was remarkable as this happens not that often in that strength
General weather situation	TRW - Trog Westeuropa trocken-warm

Messdaten

Wie folgt eine Auflistung der gemessenen Max-Windböen ab 100 km/h bis 4. November 2014, 18 UTC
(MeteoCentrale jeweils Top 20 pro 6h-Intervall, wobei "0700h" bedeutet: "gemessen in den 6 Stunden bis 7 Uhr morgens")

Übersicht Windspitzen > 90 km/h (Beaufort 10) am 04.11.2014:

© Kai Kobler
>> Link zu interaktiver Karte

Ursachen- und Ereignisanalysen

Starker Föhn in den Alpen Analyse von Florian Barnick

Videos

Medienlinks

Diskussion im Schweizer Sturmforum:
Föhnsturm 03./04.11.2014

Der Besuch des ältesten Urners MeteoZurich
Föhnsturm mit Orkanböen Bericht von SRF Meteo
67-Jähriger wird in Sevelen von Dach geweht Südostschweiz, 05.11.2014
Sturm setzt Schulhaus übel zu Tagblatt, 06.11.2014
Winde mit Orkanstärke – heute wirds noch heftiger 20 Minuten, 04.11.2014
Nach Sturm-Chaos mit Schwerverletzten Der Winter ist da Blick, 05.11.2014
Föhn-Sturm erreicht in den Alpentälern Orkanstärke Aargauer Zeitung, 04.11.2014

Interna

SSWD Main Editor	Severestorms	Last Edit	15.03.2015	Last Review	18.03.2017	Documentation State	Ready for Review