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Tribune News Network
Doha
The Qatar Meteorology Department has urged caution among motorists as fog is expected to lower visibility to less than 2 kilometres at times in Qatar until Tuesday.
Fog is a visible concentration of small water droplets that average between 10 and
20 microns in diameter (depending on fog type) and are in contact with the ground or close to it such that visibility is seriously affected. By meteorological definition, fog reduces the visual range to less than 3,300 ft (1 kilometer); however, even a dense fog by meteorological standards (visual range less than 1,300 ft) may not have any significant effect on driving performance.