rmks/ 1. Typhoon 18w (xangsane) warning nr 019 01 active tropical cyclone in northwestpac Max sustained winds based on one-minute average --- warning position: 300000z --- near 15.5n 112.3e movement past six hours - 270 degrees at 09 kts position accurate to within 025 nm position based on eye fixed by satellite present wind distribution: Max sustained winds - 115 kt, gusts 140 kt radius of 064 kt winds - 030 nm northeast quadrant 030 nm southeast quadrant 030 nm southwest quadrant 030 nm northwest quadrant radius of 050 kt winds - 050 nm northeast quadrant 050 nm southeast quadrant 050 nm southwest quadrant 050 nm northwest quadrant radius of 034 kt winds - 110 nm northeast quadrant 100 nm southeast quadrant 100 nm southwest quadrant 110 nm northwest quadrant repeat posit: 15.5n 112.3e --- forecasts: 12 hrs, valid at: 301200z --- 15.4n 110.4e Max sustained winds - 100 kt, gusts 125 kt radius of 064 kt winds - 025 nm northeast quadrant 025 nm southeast quadrant 025 nm southwest quadrant 025 nm northwest quadrant radius of 050 kt winds - 045 nm northeast quadrant 045 nm southeast quadrant 045 nm southwest quadrant 045 nm northwest quadrant radius of 034 kt winds - 090 nm northeast quadrant 090 nm southeast quadrant 090 nm southwest quadrant over water 090 nm northwest quadrant over water vector to 24 hr posit: 265 deg/ 08 kts --- 24 hrs, valid at: 010000z --- 15.2n 108.7e Max sustained winds - 070 kt, gusts 085 kt dissipating as a significant tropical cyclone over land radius of 064 kt winds - 020 nm northeast quadrant over water 020 nm southeast quadrant over water 020 nm southwest quadrant over water 020 nm northwest quadrant over water radius of 050 kt winds - 035 nm northeast quadrant over water 035 nm southeast quadrant over water 035 nm southwest quadrant over water 035 nm northwest quadrant over water radius of 034 kt winds - 080 nm northeast quadrant over water 080 nm southeast quadrant over water 080 nm southwest quadrant over water 080 nm northwest quadrant over water vector to 36 hr posit: 255 deg/ 05 kts --- 36 hrs, valid at: 011200z --- 14.9n 107.7e Max sustained winds - 030 kt, gusts 040 kt dissipated as a significant tropical cyclone over land --- remarks: 300300z position near 15.5n 111.8e. Typhoon (TY) 18w (xangsane), located approximately 280 nm east of hue, Vietnam, has tracked westward at 09 knots over the past six hours. Maximum significant wave height at 300000z is 25 feet. Next warnings at 300900z, 301500z, 302100z and 010300z.// Nnnn