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霧峰追風者|2017-10-11 04:26
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JTWC 20Z評級"LOW"
(1) AN AREA OF CONVECTION (INVEST 98W) HAS PERSISTED NEAR
14.6N 135.8E, APPROXIMATELY 335 NM NORTH-NORTHWEST OF YAP. ANIMATED
ENHANCED INFRARED SATELLITE IMAGERY DEPICTS FLARING CONVECTION
BECOMING MORE ORGANIZED AROUND A DEVELOPING LOW LEVEL CIRCULATION
CENTER (LLCC) EMBEDDED WITHIN AN ACTIVE MONSOON TROUGH. A 101746Z
GMI 89GHZ MICROWAVE IMAGE SHOWS AN ELONGATED CIRCULATION WITH
CONVECTION MOSTLY LOCATED AROUND THE WESTERN PERIPHERY. THE
DISTURBANCE IS CURRENTLY LOCATED IN A FAVORABLE ENVIRONMENT DUE TO
GOOD POLEWARD DIVERGENCE, LOW VERTICAL WIND SHEAR (5-10 KNOTS), AND
WARM SEA SURFACE TEMPERATURES (29-31 CELSIUS). GLOBAL MODEL GUIDANCE
IS CURRENTLY INDICATING THAT INVEST 98W WILL TRACK TO THE NORTHWEST
TOWARDS LUZON WHILE SLOWLY CONSOLIDATING OR POTENTIALLY MERGING WITH
ANOTHER AREA OF TIGHT TURNING WITHIN THE TROUGH (INVEST 90W) OVER
THE NEXT SEVERAL DAYS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE
NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
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