Wiktionary
khamaseen
n. 1 A cyclonic type wind that is common in Egypt and Sudan towards the end of March and April of each year. Hot weather ensues, as well as sandstorms. 2 According to the ''Turkish Calendar of Storms'' a storm of three days, to be expected around February 1. 3 An oppressive, hot, dusty, south or south-east wind occurring in North Africa, the Arabian Peninsula, and the Levant, intermittently in late winter through late spring.