The country is expected to be affected by dust mass from dawn Friday to Saturday, Qatar Meteorology Department said on Friday. Marine warning of strong wind and high sea expected to continue until Saturday. The wave height will range between 4-9ft and exceeding 12ft sometimes. Dusty and windy weather is expected to continue across Qatar until June 19, due to strong northwesterly wind, Qatar Meteorology Department added. The pictures show dusty and windy conditions that prevailed yesterday in Doha.