By bnm Tehran bureau Iranian authorities have placed emergency services on high alert as heavy snowfall and plummeting ...

Toxic air that cloaked Iran this winter ... usual winter cover of snow and rain, the city was blanketed by a heavy, orange fog. "It's so bad — we can't even see a mountain that is 100 meters ...

Valley cold pools in place may lead to light snow in most locations by Friday afternoon. Mountain passes could receive 3 to 6 inches of snow, with higher elevations potentially seeing greater amounts.