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老J MEDIUM報文
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 6.5N
133.4E, IS NOW LOCATED NEAR 9.0N 131.0E, APPROXIMATELY 670 NM EAST-
SOUTHEAST OF MANILA, PHILIPPINES. ANIMATED INFRARED SATELLITE
IMAGERY SHOWS THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS BECOME
MORE DEFINED AS A CONVECTIVE BAND TO THE NORTH HAS BEGUN TO FORM AND
WRAP INTO THE LLCC. THIS IS ALSO EVIDENT ON A 271106Z 37 GHZ SSMI/S
MICROWAVE PASS. UPPER LEVEL ANALYSIS INDICATES THE SYSTEM IS
APPROXIMATELY 12 DEGREES SOUTH OF THE SUBTROPICAL RIDGE AXIS IN AN
AREA OF LOW (05-10 KNOT) VERTICAL WIND SHEAR, ANIMATED WATER VAPOR
IMAGERY SHOWS AN EQUATORWARD OUTFLOW CHANNEL HAS OPENED UP OVER THE
LAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS, EXTRAPOLATED FROM
RECENT SCATTEROMETRY DATA, ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM
SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. IN VIEW OF THE
IMPROVING STRUCTURE OF THE CYCLONE AND THE ENHANCED OUTFLOW, THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM.
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