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asus5635|2017-4-24 06:27
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顯示全部樓層
本帖最後由 asus5635 於 2017-4-24 06:31 編輯
JTWC: MEDIUM
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 8.5N
142.2E, IS NOW LOCATED NEAR 10.5N 139.2E, APPROXIMATELY 85 NM
NORTHEAST OF YAP. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A
231755Z AMSU 89 GHZ MICROWAVE IMAGE BOTH DEPICT A CONSOLIDATING LOW
LEVEL CIRCULATION CENTER WITH INCREASED CONVECTION BEGINNING TO WRAP
INTO THE SYSTEM. HOWEVER, A 231231Z ASCAT PASS INDICATED A BROAD
CIRCULATION WITH 15 KNOT WINDS AND STRONGER WINDS (20 KNOTS) WELL TO
THE NORTH OF THE CIRCULATION. THE SYSTEM IS LOCATED IN AN AREA OF
IMPROVED POLAR OUTFLOW, LOW VERTICAL WIND SHEAR (5-10 KNOTS), AND
WARM SEA SURFACE TEMPERATURES (29-30 CELSIUS). GLOBAL MODELS
INDICATE SLOW INTENSIFICATION OF THE SYSTEM AS IT PROPAGATES
NORTHWESTWARD 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 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO
MEDIUM.
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在此同時，JMA也發布Warning
WARNING.
TROPICAL DEPRESSION 1006 HPA
AT 10.4N 140.9E MARIANAS MOVING WEST SLOWLY.
POSITION POOR.
MAX WINDS 30 KNOTS NEAR CENTER.
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