簽到天數: 2141 天 [LV.Master]伴壇終老
|
周子堯@FB|2016-11-3 17:23
|
顯示全部樓層
JTWC把99WTCFA取消，同時也把平級降到Medium
1. THIS CANCELS REF A (WTPN21 PGTW 012300). THE AREA OF
CONVECTION PREVIOUSLY LOCATED NEAR 16.7N 145.0E, IS NOW LOCATED NEAR
17.0N 144.7E, APPROXIMATELY 210 NM NORTH OF ANDERSEN AFB, GUAM.
ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A 022108Z MHS
NOAA-18 89GHZ MICROWAVE PASS DEPICT A PARTIALLY EXPOSED AND ELONGATED
LOW LEVEL CIRCULATION CENTER (LLCC) WITH DEEP FLARING CONVECTION OVER
THE EASTERN PORTION OF THE LLCC. THE SYSTEM IS CURRENTLY LOCATED IN A
MARGINALLY FAVORABLE ENVIRONMENT WITH GOOD DIFFLUENCE ALOFT, MODERATE
(15-20KTS) VERTICAL WIND SHEAR WITH HIGHER VALUES TO THE NORTH
(30KTS), AND WARM SEA SURFACE TEMPERATURES (30C). GLOBAL MODELS ARE
MIXED WITH DEVELOPMENT POSSIBLE AS THE SYSTEM TRACKS TO THE NORTHWEST
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. IN VIEW
OF THE MARGINALLY FAVORABLE ENVIRONMENT, THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS DOWNGRADED TO MEDIUM.// 
|
|
