Typhoon warning:Typhoon Cary 976 HPA at 28°30'N, 155°35'E moving northeast 12 knots. Maximum winds 70 knots near centre. Radius of over 50 knots 75 miles. Radius of over 30 knots winds 175 miles. Forecast position for 0000 hours UTC at 31°50'N 155°05'E with expected uncertainty of 125 miles radius. Sea rough. Further information on VHF channel 14. Q4:What is the sea state?