Tehran was alerted to possible flooding following the issuing of a red warning for the increase of rainfall and an orange warning for the intrusion of a cold air mass by the meteorological organization, the rescue and service facilities of the Tehran district were put on standby to deal with the upcoming weather hazards; From the full preparation of emergency bases and 138 fire stations to the deployment of equipment in high risk areas and continuous monitoring of flood routes. During this period there is a possibility of a sudden rise in river levels, flowing water, road flooding, canal flooding, rockslides, avalanches and blocking some of the mountain roads. Read more details here.