We don't have synonyms for simooms yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are simoom and simoons.
(n) :
A hot, dry, suffocating, dust-laden wind of the desert, particularly of Arabia, Syria, and neighboring countries, generated by the extreme heat of the parched deserts or sandy plains.
(n) :
A hot, dry, suffocating, dust-laden wind of the desert, particularly of Arabia, Syria, and neighboring countries, generated by the extreme heat of the parched deserts or sandy plains.