81.   A thick fog of miscellaneous and unrelated details delays many endings.

82.   About two hours after the first strike, thick fog enveloped the city.

83.   According to the mountain rescue service, the eight probably lost their way in thick fog.

84.   An Italian warship and a Portuguese navy vessel collided in thick fog near Lisbon Friday, slightly injuring two Portuguese crew members, the Portuguese Navy said.

85.   As rescuers searched through the thick fog, anxious family members and friends awaited word.

86.   Attempts to reach the site were hampered by heavy snow and thick fog, conditions which had frustrated the quest to find the plane since its crash late Wednesday.

87.   But environmentalists warn that dangers still persist in the bay, with many ships traveling through a narrow corridor, sometimes in complete darkness and thick fog.

88.   But that search was called off because of the thick fog.

89.   But that was before soft snow, hard rain and thick fog hit on Friday.

90.   Despite thick fog and falling snow, rescuers reached the stranded travelers by Saturday and began unblocking the tunnel and leading people out, most of them women.