Foehn wind Eiger, for whom the winds add further difficulty in ascending an already difficult peak. They are also associated with the rapid spread of wildfires, making some regions which experience these winds particularly fire-prone. Anecdotally, residents in areas of frequent foehn winds report a variety of illnesses ranging from migraines to psychosis. The first clinical review of these effects was published by the Austrian physician Anton Czermak in the 19th century. A study by the Ludwig-Maximilians-Universität München found that suicide and accidents increased by 10 percent during foehn winds in Central Europe. The causation of "Föhnkrankheit" (English: Foehn-sickness) is yet unproven.
Automated airport weather station than actual. Current sensors are capable of reporting visibility in a wide range. For aviation purposes, the reported values are rounded down to the nearest step in one of the following scales: Automated airport weather stations use a Light Emitting Diode Weather Identifier (LEDWI) to determine if and what type of precipitation is falling. The LEDWI sensor measures the scintillation pattern of the precipitation falling through the sensor's infrared beam (approximately 50 millimeters in diameter) and determines from a pattern analysis of the particle size and fall velocity whether the precipitation is rain or snow. If precipitation is determined to