MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/181830Z-190600ZNOV2009//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION HAS PERSISTED NEAR 5.1N 152.8E,
APPROXIMATELY 160 NM SOUTH-SOUTHEAST OF CHUUK. RECENT ANIMATED
INFRARED SATELLITE IMAGERY SHOWS AN UNORGANIZED AREA OF LIMITED,
MODERATE-TO-DEEP CONVECTION ASSOCIATED WITH A BROAD AREA OF CYCLONIC
TURNING. AN 180607Z QUIKSCAT PASS INDICATES A LARGE 15 TO 20 KNOT
LOW LEVEL CIRCULATION CENTER (LLCC) HAS DEVELOPED WITHIN THIS
BROADER TURNING. STRONG WESTERLY FLOW ALONG THE SOUTH SIDE OF THE
CIRCULATION SUPPORTS FURTHER CONSOLIDATION (AND TIGHTENING) OF THE
LLCC. VERTICAL WIND SHEAR IS LOW AND OUTFLOW HAS BEEN AIDED BY AN
UPPER LEVEL CYCLONE AROUND 40N. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED
TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS FAIR.
(2) AN AREA OF CONVECTION HAS PERSISTED NEAR 6.4N 174.9E,
APPROXIMATELY 225 NM EAST OF MAJURO. A 180626Z QUIKSCAT IMAGE
INDICATES A STRONG TROPICAL WAVE PULSING TROUGH EASTERN MICRONESIA.
HOWEVER, A MORE RECENT (181141Z TMI) MICROWAVE PASS SHOWS THAT A
WELL-DEFINED LLCC, OUTLINED BY PRONOUNCED CURVATURE OF DEEP
CONVECTION PARTICULARLY WITHIN THE EASTERN SEMICIRCLE, HAS EVOLVED
FROM THIS WAVE. CENTRALIZED DEEP CONVECTION HAS ALSO BECOME
INCREASINGLY PERSISTENT, AS WELL, DUE TO ENHANCED POLEWARD VENTING
INTO AN UPPER LEVEL CYCLONE TO THE NORTH AND LOW VERTICAL WIND
SHEAR. 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 IS FAIR.
(3) NO OTHER SUSPECT AREAS.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: ADDED THE AREA IN PARA 1.B.(1) AND
PARA 1.B.(2) AS FAIR.//
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