JAMMU: The cold wave on Friday gripped fog hit winter capital of the state on second consecutive day while air and train services remained affected due to poor visibility. The blanket of fog early morning gripped Jammu and its peripheries thus further dipping the day temperature.Vehicles moved at snail’s pace due to fog. Children braving chill were also seen going to school and parents have appealed to the state government to announce winter vacations in view of harsh weather conditions. Meanwhile, air service at Jammu airport was also hit by the fog. “Flights since morning arrived late at the airport by 30 to 45 minutes from their scheduled time due to poor visibility,” an official at the airport here said. Some of the trains also arrived late by few hours at Jammu Tawi Railway Station. Weatherman said fog will remain for another couple of days while the harsh weather conditions are expected to improve after December 16. “The day temperature has dipped by few degrees and was recorded 10.5 degree Celsius while the night (minimum) temperature was 6.5 degrees,” he said. Reports from Katra said that chopper service from base camp to Sanjhi Chhat has resumed after remaining suspended due to dense fog in the Trikuta Hills.