What an unusual situation:

From http://site25.net/storms/abpwweb.txt:

B. TROPICAL DISTURBANCE SUMMARY:
(1) THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 17.5N
125.5E, IS NOW LOCATED NEAR 20.1N 121.3E, APPROXIMATELY 297 NM SOUTH
OF TAIPEI, TAIWAN. ANIMATED MUTLISPECTRAL SATELLITE IMAGERY DEPICTS
A LARGE AREA OF PERSISTENT DEEP CONVECTION LOCATED OVER THE NORTHERN
PERIPHERY OF A DEVELOPING LOW-LEVEL CIRCULATION CENTER (LLCC). A
010329Z TRMM MICROWAVE IMAGE REVEALS THE APPROXIMATE LOCATION OF THE
DEVELOPING LLCC AS WELL AS A CURVED BAND OF DEEP CONVECTION OVER THE
NORTHERN SEMI-CIRCLE. WEAK AND FRAGMENTED BANDING IS ALSO IDENTIFIED
ACROSS THE SOUTHERN PERIPHERY OF THE DISTURBANCE. THE NORTHWEST
TRACK INTO LUZON STRAIT APPEARS TO BE DUE TO INTERACTION WITH
TROPICAL STORM 09W AND MAY RESULT IN THE DISTURBANCE BEING ABSORBED
BY THE LARGE MONSOON DEPRESSION IN THE SOUTH CHINA SEA. UPPER-LEVEL
ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH LOW VERTICAL WIND
SHEAR AND GOOD POLEWARD OUTFLOW INTO A TUTT CELL OVER TAIWAN.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS REMAINS MEDIUM.