簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2014-3-21 00:49
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又是15Z加報評級
升評Medium
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 7.1N 129.1E
IS NOW LOCATED NEAR 7.4N 129.3E, APPROXIMATELY 435 NM EAST OF
ZAMBOANGA, PHILIPPINES. ANIMATED INFRARED SATELLITE IMAGERY
DEPICTS FORMATIVE DEEP CONVECTIVE BANDING OVER THE NORTHERN SEMI-
CIRCLE OF A SLOWLY DEVELOPING LOW-LEVEL CIRCULATION CENTER (LLCC). A
201051Z SSMIS IMAGE INDICATES A DEFINED LLCC WITH CURVED BANDING
WRAPPING INTO THE CENTER. A 201304Z ASCAT IMAGE REVEALS A SYMMETRIC
CIRCULATION WITH 15 TO 20 KNOT WINDS, PRIMARILY LOCATED OVER THE
NORTHERN SEMI-CIRCLE. A 20/09Z SHIP REPORT, 120 NM SOUTH-SOUTHWEST
OF CENTER, INDICATES SUSTAINED WEST-NORTHWESTERLY WINDS AT 15 KNOTS
WITH SLP NEAR 1006 MB. UPPER-LEVEL ANALYSIS INDICATES THE
DISTURBANCE IS LOCATED IN A MARGINALLY-FAVORABLE ENVIRONMENT WITH
LOW TO MODERATE (10 TO 20 KNOTS) VERTICAL WIND SHEAR AND GOOD
POLEWARD OUTFLOW. 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 UPGRADED TO MEDIUM.
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