Thick fog continued to blanket parts of western and central
China, forcing sections of expressways to close temporarily due to
low visibility.
The fog will linger on Sunday in regions of north, east and west
China, according to China Central Meteorological Observatory.
The meteorological observatory also warned of low visibility and
delay of flights in these regions.
In central China's Henan Province, the provincial meteorological
observatory issued red fog warning, the highest level, on
Sunday.
Visibility in Zhengzhou, capital of Henan, reduced to less than
50 meters and motors vehicles have to move at snail's pace on the
roads.
It is the 14th fog warning signal issued in Henan since
October.
The Xi'an-Baoji Expressway in northwest China's Shaanxi Province
was closed on Saturday as visibility in some sections was less than
two meters.
Meteorologists attributed the heavy fog to a combination of high
humidity, lower temperature and low wind speed in the affected
regions.
(Xinhua News Agency December 23, 2007)