Jet stream winds enhancing cold wave conditions in north India: IMD
New Delhi, Jan 17 (IANS) The India Meteorological Department (IMD) on Wednesday said that “jet stream winds” of 140-160 knots at 12.6 km above mean sea level are prevailing over the plains of north India, leading to subsidence of cold air and enhancing cold wave/cold day conditions which are likely to continue for next five days.