Hanoi has been hit by advection fog this week as moist, warm air passes over cooler waters, according to weather forecasters. Photos by VnExpress/Ngoc Thanh and Giang Chinh |
They said starting Thursday the fog would leave and give way to a cold spell, bringing the average temperature from 21 to 17 degrees Celsius. |
But on Wednesday fog, coupled with rain, challenged many drivers. |
The Chuong Duong Bridge under the fog |
Many residents said they were surprised seeing fog as this winter has been quite warm. |
Fog and rain and traffic jams.
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The city skyline was covered by fog. |
Many had to drive with their lights on. |
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