Issued (1530 UTC) 1130pm PhT 092913
Typhoon Wutip has slightly weakened this evening as it undergoes an eyewall replacement cycle. The center of the system was last located approximately 330km south of Haikou, Hainan or about 640km southeast of Hanoi, Vietnam. Maximum sustained winds are down to 155kph with gusts of up to 195kph. Typhoon Wutip is moving westward at 15kph.
IR Image from CIMSS
Latest satellite image shows the eye is no longer visible and the system has somewhat looked more rugged compared to this morning. Wutip had a really small eyewall from the beginning and it was very obvious that an eyewall replacement cycle will commence. This ERC will likely continue until landfall in Vietnam so we no longer expect any significant intensification.
Typhoon Wutip is forecast to pass south of Hainan Island tonight bringing strong winds and heavy rains along the coast. It will then continue moving westward and could make landfall near Vinh, Vietnam tomorrow morning as a weakening Category 1 Typhoon. Strong winds of up to 120kph and rains of up to 200mm will threaten the projected landfall areas. Wutip will, then, rapidly weaken upon landfall but will still threaten parts of Indochina, including Laos, by Monday and Tuesday.
We'll have another update tomorrow morning.