With the downpour expected to continue on Wednesday, schools and government offices have been closed and hundreds have evacuated.
Some areas received over 180 millimeters of rain between Sunday and Tuesday, according to the country’s National Committee for Emergency Management.
The average annual rainfall in Muscat, the nation’s capital, is about 100 millimeters — although other parts of the country can receive more rain.
The 18 dead includes an infant, the emergency management committee said on Tuesday, and two others are missing.
On Wednesday, heavy rain was forecast to continue falling, with some places, including Muscat, expected to receive 30 to 100 millimeters of rain, the emergency management committee said.
Organizations:
Emergency Management, Associated Press
Locations:
Oman, Muscat