Hanoi, Nov. 5 -- Typhoon Kalmaegi is sustaining strong winds and heading towards the central region of Vietnam, the National Centre for Hydro-Meteorological Forecasting (NCHMF) said, warning water levels rise by 0.3 to 0.6 metres for coastal areas from Hue city to Dak Lak province. At 1:00 am on November 5, the centre of Kalmaegi, the 13th storm in the East Sea this year, was at around 11.3 degrees North latitude and 119.9 degrees East longitude, over the northern area of the Palawan Island of the Philippines, about 610 km east of Song Tu Tay Island. The strongest winds near the storm's eye reached Level 13 (134-149km/h), with gusts up to Level 16. It was moving west-northwest at a speed of 20-25 km/h. By 1:00 am on November 6, the typhoo...