After nightlong intermittent snowfall, the Kashmir Valley on Wednesday remained cut off from the rest of the country as road, rail and air traffic got disrupted. Strategic Srinagar-Jammu national highway has been closed due to heavy snowfall in Bannihal and Patnitop sectors of the over 300 km long road. No flights operated to and from Srinagar international airport due to poor visibility in the morning. Accumulation of fresh snow on rail tracks forced suspension of Baramulla-Bannihal rail service on Wednesday. Transport service between Srinagar and other district headquarters was also disrupted due to slippery roads and accumulation of snow. Authorities moved out snow clearance machines here and other districts even though road connectivity between rural areas and towns remained suspended.