An intense cold front from western Siberia will bring strong winds and abrupt temperature declines to most of central and eastern China over the next three days, according to the National Meteorological Observatory.

Temperatures in northwest China, north China's Inner Mongolia Autonomous Region, east China, northeast China and areas between the Yellow and Yangtze rivers should drop sharply, falling by six to 10 degrees Celsius in most areas and up to 10 to 14 degrees Celsius in some areas, the observatory said in a notice.

Heavy fog blanketed north China, areas of Hubei, Hunan and Guizhou provinces, Chongqing Municipality and the Sichuan basin, as well as areas between the Huaihe and Yangtze rivers on Sunday morning, the notice said.

Visibility in some spots was limited to 200 meters, it said.

It also forecast that typhoon Mitag, which has killed six people in the Philippines, will move northwestward at a speed of five to 10 kilometers per hour at sustained strength.

A second storm, Hagibis, which means "rapidity" in Tagalog, will move eastward at five to 10 km per hour at sustained strength, it said.

Hagibis blew into the South China Sea on Nov. 21, intensified into a typhoon a day later and weakened into a strong tropical storm early Saturday.

Hagibis forced 29 Filipino fishermen to take shelter in southern China's Nansha Islands to escape stormy seas and left more than 20 Filipinos missing.

(Xinhua News Agency November 25, 2007)