Kamsin 0022a.jpg

Khamsin, chamsin or hamsin ( ar, خمسين , meaning "fifty"), more commonly known in Egypt as khamaseen ( arz, خماسين , ), is a dry, hot, sandy local wind affecting Egypt and the Levant; similar winds, blowing in other parts of North Africa, the Arabian Peninsula and the entire Mediterranean basin, have different local names, such as '' bad-i-sad-o-bist roz'' in Iran and Afghanistan, ''haboob'' in the Sudan, ''aajej'' in southern Morocco, ''ghibli'' in Tunis, ''harmattan'' in the western Maghreb, ''africo'' in Italy, sirocco (derived from the Arabic , "eastern") which blows in winter over much of the Middle East,Philologos
''Fifty Days and Fifty Nights''
in The Forward, 4 April 2003. Accessed 18 May 2018 and '' simoom''.

From the Arabic word for "fifty", these dry, sand-filled windstorms blow sporadically in Egypt over a fifty-day period in spring, hence the name. The term is also used in the southern Levant ( Israel, Jordan), where the phenomenon takes a partly different form and blows both during spring and autumn.

When the storm passes over an area, lasting for several hours, it carries great quantities of sand and dust from the deserts, with a speed up to 140 kilometers per hour (87 mph; 76 knots), and the humidity in that area drops below 5%. Even in winter, the temperatures rise above 45° C (113° F) due to the storm. The sand storms are reported to have seriously impeded both Napoleon's military campaigns in Egypt as well as Allied-German fighting in North Africa in World War II.

In the southern Levant it takes the shape of an oppressive weather front with hot temperatures, large quantities of dust impeding visibility, and strong winds during the night. In the Book of Exodus of the Hebrew Bible, the ''ruah kadim'' (‏רוח קדים) or "east wind" is the cause of the parting of the Red Sea ().

Causes and history

Khamsin can be triggered by extratropical cyclones that move eastwards along the southern parts of the Mediterranean or along the North African coast from February to June.

In Egypt, the khamsin usually arrives in April but occasionally can occur between March and May, carrying great quantities of sand and dust from the deserts, with a speed up to 140 kilometers per hour, and a rise of temperatures as much as 20 °C (36 °F) in two hours. It is believed to blow "at intervals for about 50 days", although it rarely occurs "more than once a week and lasts for just a few hours at a time." A 19th-century account of the khamsin in Egypt reports that

These winds, though they seldom cause the thermometer of Fahrenheit to rise above 95° in Lower Egypt, or in Upper Egypt 105°, are dreadfully oppressive, even to the natives. When the plague visits Egypt, it is generally in the spring; and the disease is most severe in the period of the khamáseen.

The same account relates that Muslims in Egypt "calculate the period of hamaseen... to commence on the day immediately following the Coptic festival of Easter Sunday, and to terminate on the Day of Pentecost (or Whitsunday); an interval of forty-nine days." This period roughly coincides with the Jewish Counting of the Omer, which also lasts for an interval of 49 days, between the springtime feasts of Pesach (Passover) and Savuot (Weeks), as well as the Christian Eastertide which Copts also refer to as ''khamaseen''.

During Napoleon's 1798 Egyptian Campaign, the French soldiers had a hard time with the khamsin: when the storm appeared "as a blood tint in the distant sky", the Ottomans went to take cover, while the French "did not react until it was too late, then choked and fainted in the blinding, suffocating walls of dust." During the North African Campaign in World War II, "Allied and German troops were several times forced to halt in mid-battle because of sandstorms caused by the khamsin... Grains of sand whirled by the wind blinded the soldiers and created electrical disturbances that rendered compasses useless."

In Israel, the khamsin ( he, חמסין) is known more formally as ' ().

Cultural references

* In the series of books by Wilbur Smith in the book Warlock, Nefer, Taita and Mintaka have to hide in a cave until this storm passes whilst escaping the Hyksos
* In the Hebrew Bible, it is called ' () or "east wind", and is considered to be the wind of God.
* Khamsin was the name of a magazine published during the 1970s and 1980s by a group of Israeli Middle Eastern exiles in Europe, including members of Matzpen.
* ''Khamsin'' was the title of a 1982 Israeli film about a clash between a Jewish landowner and his Arab workers in a small farming village in the Galilee. The film was selected by the Israeli Film Board as their nominee for the Academy Award for best foreign-language film in 1983.

* '' The Alexandria Quartet'' by Lawrence Durrell also has a vivid description of the Khamsin.
* "Khamsin" is the name of the third movement of the composition Warm Winds, recorded by the Hollywood Saxophone Quartet in the 1950s.
* "Khamsin" was the codename of one of the characters from the video game '' Metal Gear Rising: Revengeance''.
* "Khamsin" was the name of a Flame Haze in the anime, '' Shakugan no Shana''.
* In Golden Sun : Dark Dawn, Khamsin is the French name given to the Jupiter Djinni Sirocco
* The Maserati Khamsin is a grand tourer produced by Maserati between 1974 and 1982.
* ''In The Adventures of Tintin'', in the volume "Land of Black Gold", Tintin, his dog Snowy and the twin detectives Thomson & Thompson face this storm.
* The Khamsin appears as a mythological creature in the Spanish comic series ''A Través del Khamsin'', created by Skizocrilian Studio and published by Norma Editorial between 2013 and 2016.

See also

* Haboob
*Harmattan
* Sand storm

References

External links

{{commons category
Khamsin on Winds of the WorldPictures of khamsin in Israel

Arabic words and phrases
Winds