WTKO20 RKSL 031800

KMA TROPICAL CYCLONE ADVISORY NO. 4

NAME 1801 BOLAVEN

ANALYSIS

POSITION 031800UTC 11.6N 111.9E

MOVEMENT W 13KT

PRES/VMAX 1000HPA 35KT

FORECAST

24HR

POSITION 041800UTC 11.7N 106.9E WITHIN 0NM

PRES 1002HPA

KOREA METEOROLOGICAL ADMINISTRATION.