Foehn wind

 ( Föhn Effect ) 

Foehn winds are notorious among mountaineers in the Alps, especially those climbing the Eiger, for whom the winds add further difficulty in ascending an already difficult peak.

They are also associated with the rapid spread of , making some regions which experience these winds particularly fire-prone.

In some regions, Foehn winds are associated with causing circulatory problems, headaches, or similar ailments. Researchers have found, however, the Foehn wind's warm temperature to be beneficial to humans in most situations, and have theorized that the reported negative effects may be a result of secondary factors, such as changes in the electrical field or in the ion state of the atmosphere, the wind's relatively low humidity, or the generally unpleasant sensation of being in an environment with strong and gusty winds.

in Africa

• Bergwind in South Africa

in the Americas

• The Brookings effect on the southwestern coast of Oregon, also known as the Chetco Effect.
• east of the Rocky Mountains and the Cascade Range in the United States and Canada, and north, east and west of the Chugach Mountains of Alaska, United States
• Foehn winds in the foothills of the southern Appalachian Mountains, which can be unusual compared to other Foehn winds in that the relative humidity typically changes little due to the increased moisture in the source air mass
• Mono winds in the Sierra Nevada.
• The Santa Ana winds of southern California, including the Sundowner winds of Santa Barbara, are in some ways similar to the Föhn, but originate in dry deserts as a katabatic wind. However, traditional Föhn conditions frequently prevail along the Santa Monica and Santa Ana Mountains and their respective leeward valleys, the San Fernando Valley and the Riverside County portion of the Inland Empire region.
• Puelche wind in Chile
• Suêtes on the west coast of Cape Breton Island, Nova Scotia, Canada
• Wreckhouse winds in the southwest corner of the island of Newfoundland, Newfoundland and Labrador, Canada
• in Argentina

in Antarctica

• Föhn wall on Signy Island, South Orkneys

in Asia

• Garmesh, Garmij, Garmbaad (): (, ) in Gilan region (near the Alborz) in the south west of Caspian Sea in Iran.
• In winter, a Foehn effect occurs in the West Azerbaijan province, Iran (around Lake Urmia) as manifested by the province's dry winters relative to those in the windward part of the region (Northern Iraq or Kurdistan Region and Hakkâri Province in Turkey). For example, the winter rainfall of Urmia and Salmas in Iranian Azerbaijan is much lower than Batifa and Soran in Iraqi Kurdistan, and Hakkâri in the Hakkâri Province, which are roughly on the same latitude but are on the windward side of the Zagros Mountains.
• Loo in Indo-Gangetic Plain
• Warm Braw in the Schouten Islands north of West Papua, Indonesia.
• Wuhan in China is famously known as one of the Three Furnaces on account of its extremely hot weather in summer resulting from the adiabatic warming effect created by mountains further south.
• Laos wind (), hot-dry west wind () in northern and central Vietnam.

in Europe

• Favonio in Ticino and north-western Italy due to western and northern winds crossing the Alps (mostly in winter)
• Garbino in the Adriatic Sea coast of Italy due to south-western winds crossing the Apennine Mountains (mostly in fall and winter)
• Fen in northwest Slovenia
• Fønvind in South Norway, in particular Central Norway, resulting in extreme winter warming, including Scandinavia's warmest winter temperature in Sunndalsøra.
• Fogony in the Catalonia Pyrenees
• Föhn or Foehn in Austria, southern Germany, Switzerland, France and Liechtenstein
• Föhn in Ostrobothnia and Western Lapland in Finland as moist air crosses Scandinavian Mountains and dries up.
• Halny in the Carpathian Mountains, southern Poland and northern Slovakia
• The Helm Wind, on the Pennines in the Eden Valley, Cumbria, England
• Hnjúkaþeyr in Icelandic
• Lodos wind, causing warm temperatures in the leeward side of mountains in the mild-winter climate of the Aegean Sea, Greece and western Turkey, as well as unusually mild temperatures in the cool or moderately cold winter climates north of the Marmara Sea, such as Istanbul, Adapazarı and Zonguldak.
• Košava (Koshava) wind in Serbia that blows along the river Danube
• Nortada in Cascais, and most notoriously in Guincho Beach, making it one of the best windsurfing spots in Europe
• Ponentà in Valencia (eastern Spain)
• Terral in Málaga (southern Spain)
• Viento del Sur (Southern Wind) or Hego haizea in Basque in the Green Spain (northern Spain)

in Oceania

• The Great Dividing foehn in southeast Australia, leeward of the Great Dividing Range, observed in the coastal plains of New South Wales, and also in eastern Victoria and eastern Tasmania.Sharples, J.J. Mills, G.A., McRae, R.H.D., Weber, R.O. (2010) Elevated fire danger conditions associated with foehn-like winds in southeastern Australia. Journal of Applied Meteorology and Climatology.
• The Nor'wester in Hawkes Bay, Canterbury, and Otago, New ZealandRelph, D. " The Canterbury nor'wester," New Zealand Geographic. Retrieved 17 February 2018.

• Alpine climate
• Anabatic wind
• Chinook wind
• Föhn cloud
• Lee wave
• Meteorology

• McKnight, TL & Hess, Darrel (2000). "Foehn/Chinook Winds". In Physical Geography: A Landscape Appreciation, p. 132. Upper Saddle River, NJ: Prentice Hall. .

• Photo of Föhnmauer The strong clouds at the mountain ridges where the Föhn winds form are called Föhnmauer (Föhn wall).
• Illustration
• Movie of a Föhn situation in the Swiss Alps
• East Scotland warmth due to Foehn Effect
• Foehn chart provided by meteomedia/meteocentrale.ch