Near Allmend at Frauenfeld, the Thur river runs straight across the upper Thur valley in Thurgau. During cold mornings with high m moisture, fog builds that then tends to be burnt up by the sun pretty quickly during springtime.

Morning fog, Allmend Frauenfeld, Thurgau, Switzerland

Morning fog above Thur river, Allmend Frauenfeld, Thurgau, Switzerland

Morning fog, Allmend Frauenfeld, Thurgau, Switzerland