I'm confused, there don't seem to be any typhoons in the area. There is a tropical depression near South Korea but that's it.

WTPN21 PGTW 231900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT//
REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/221900Z SEP 14//
AMPN/REF IS TROPICAL CYCLONE FORMATION ALERT (WTPN21 PGTW 221900)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
160 NM EITHER SIDE OF A LINE FROM 16.7N 150.6E TO 23.5N 145.8E
WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 18 TO 23 KNOTS. METSAT
IMAGERY AT 231800Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 17.7N 149.4E. THE SYSTEM IS MOVING NORTH-NORTHEASTWARD AT 15
KNOTS.
2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 16.4N
148.6E IS NOW LOCATED NEAR 17.7N 149.4E, APPROXIMATELY 380NM EAST-
NORTHEAST OF GUAM. THE AREA OF CONVECTION CONTINUES TO REMAIN
EXTREMELY BROAD, ALMOST 600NM IN LENGTH FROM SOUTHWEST TO NORTHEAST
AND MAINTAINS THE APPEARANCE OF A LARGE MONSOON DEPRESSION. FLARING
DEEP CONVECTION IS DISPLACED TO THE NORTHEAST AND IS ASSOCIATED WITH
SURFACE TROUGHING AND STRONG UPPER-LEVEL DIFFLUENCE SOUTH OF A TUTT
CELL. THE WEAKENING TUTT CELL TO THE NORTHEAST PROVIDES SOME
MODERATE OUTFLOW AND THERE IS MODERATE WINDSHEAR (10 TO 20 KNOTS)
FOR AN OVERALL MARGINAL UPPER LEVEL ENVIRONMENT. MODELS ARE IN GOOD
ALIGNMENT WITH THE SYSTEM TRACKING TO THE NORTH-NORTHWEST OVER THE
NEXT 48 HOURS AND SLOWING CONSOLIDATING FROM A MONSOON DEPRESSION.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS WITH
THE MINIMUM SEA LEVEL PRESSURE TO BE NEAR 1003 MB. DUE TO CONTINUED
CONSOLIDATION OF THE LOW LEVEL CIRCULATION CENTER THE POTENTIAL FOR
DEVELOPMENT OF A TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS
HIGH. THIS SUPERSEDES REF A.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
241900Z.//
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