Vorarlberg not Austro-Bavarian, but rather an Alemannic dialect; it therefore has much more in common culturally with its (historically) Alemannic-speaking German-speaking Switzerland, Liechtenstein, Swabia and Alsace than with rest of Austria, southeastern Bavaria, and South Tyrol. Vorarlberg is almost completely mountainous and has been nicknamed the ‘Ländle’ meaning ‘small land’. The main rivers in Vorarlberg are the Ill (running through the Montafon and Walgau valleys into the Rhine), the Rhine (forming the border with Switzerland), the Bregenzer Ache and the Dornbirner Ach. One of the shortest rivers is the Galina. Important lakes, apart from Lake Constance are Lüner Lake, Silvretta Lake,
2013 European floods between 30 and 70 years. The bulk of the rain fell in only two days in Salzburg, Tyrol, and Vorarlberg, which is thought to have a return period of more than 100 years. Following the intense rain, sporadic showers and rainfall continued to raise the risk of further flooding but no rainfall of the intensity as that seen on 31 May-2 June occurred. Some Flash flooding occurred in the Polish capital Warsaw on 9 June, as a result of thunderstorms. The flood waters were expected to exceed the levels seen during the disastrous "once in a century" Central European floods