LLCC Developing Rapidly
Posted by JAC on 4/6/2010, 8:34 am









ABPW10 PGTW 061000
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/061000Z-070600ZAPR2010//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
  A. TROPICAL CYCLONE SUMMARY: NONE.
  B. TROPICAL DISTURBANCE SUMMARY:
     (1) THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 5.4N
148.6E, IS NOW LOCATED NEAR 6.0N 147.1E, APPROXIMATELY 475 NM SOUTH-
SOUTHEAST OF GUAM. ANIMATED MULTISPECTRAL AND INFRARED (IR)
SATELLITE IMAGERY SHOWS A LOW LEVEL CIRCULATION CENTER (LLCC) HAS
BEEN RAPIDLY CONSOLIDATING OVER THE PAST SIX HOURS, HOWEVER DEEP
CONVECTION HAS CONTINUED TO DECREASE AROUND THE WELL DEFINED LLCC.
RECENT AMSU-B CROSS SECTIONS INDICATE A WEAK WARM CORE SYSTEM IS
DEVELOPING. IN ADDITION, THE AMSU AND IR TRACK WINDS INDICATE
SURFACE WINDS ARE BETWEEN 15 TO 20 KNOTS. UPPER LEVEL ANALYSIS
INDICATES A NEAR EQUATORIAL RIDGE TO THE SOUTHEAST OF THE LLCC IS
PROVIDING EASTERLY DIVERGENT FLOW OVER THE AREA. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. BASED ON THE RECENT
CONSOLIDATION OF THE LLCC WITH WINDS BETWEEN 15 TO 20 KNOTS, THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS UPGRADED TO FAIR.
39
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WPAC: 99W Could be Potent - Philippines needs to Watch - JAC, 4/6/2010, 8:23 am
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