【氣象】(2021年10月下旬)一道冷鋒正逐漸向南移動, 天氣較涼及有幾陣雨。一股大陸氣流會在下週初帶來較為明朗的天氣。

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9 Like 1 Dislike
2021-10-25 17:16:10
99W TCFA

WTPN21 PGTW 250530
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 99W)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
120 NM EITHER SIDE OF A LINE FROM 11.2N 113.8E TO 12.7N 110.6E
WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 18 TO 23 KNOTS. METSAT
IMAGERY AT 250000Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 11.2N 113.7E. THE SYSTEM IS MOVING WESTWARD AT 12 KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 99W) PREVIOUSLY LOCATED 
NEAR 10.5N 117.8E IS NOW LOCATED NEAR 11.2N 113.7E, APPROXIMATELY 
311 NM WEST-NORTHWEST OF PUERTO PRINCESA, PHILIPPINES. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS CURVED DEEP CONVECTIVE 
BANDING THAT APPEARS TO BE WRAPPING INTO A PARTIALLY-EXPOSED LLC. 
THIS BANDING CAN ALSO BE SEEN IN A 242334Z 91GHZ SSMIS IMAGE, BUT A 
250008Z ASCAT-A IMAGE INDICATES THAT THE BROAD AREA OF 20-25 KT 
WINDS UNDER THE BANDING IS PART OF THE COLD SURGE EVENT TO THE NORTH 
AND NOT ASSOCIATED WITH THE BROAD CIRCULATION. ENVIRONMENTAL 
ANALYSIS INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT, WITH 
MODERATE EQUATORWARD OUTFLOW, LOW (10-15 KTS) VERTICAL WIND SHEAR 
(VWS) AND WARM (29-30 C) SEA SURFACE TEMPERATURES (SST). GLOBAL 
NUMERICAL MODELS ARE IN GOOD AGREEMENT THAT INVEST 99W WILL TRACK 
WEST-NORTHWESTWARD AND MAKE LANDFALL OVER VIETNAM WITHIN THE NEXT 36 
HOURS. THE MODELS INDICATE THE POSSIBILITY OF A WEAK TROPICAL 
DEPRESSION BEFORE LANDFALL, BUT THE CURRENT TRACK SPEED OF INVEST 
99W, WHICH IS FASTER THAN IN MODEL GUIDANCE, INDICATES THE SYSTEM 
MAY MAKE LANDFALL SOONER WITH LESS TIME OVER WATER TO REACH WARNING 
CRITERIA. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1009 MB. 
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 
260530Z.
//
NNNN
2021-10-25 21:39:44
仲未有新post
2021-10-25 21:39:57


2021-10-25 21:42:41
我驚你老闆又玩野 等多1日先
2021-10-26 00:00:44
【颱風追擊】2120號熱帶氣旋 瑪瑙 MALOU(25W)
- 分享自 LIHKG 討論區
https://lih.kg/2750422
2021-10-29 22:41:27
台風第20号(マーロウ)
2021年10月29日21時50分発表
29日21時の実
種別 温帯低気圧

請在此主題繼續討論
2021-10-29 22:52:39
2021-10-30 05:15:27
2021-10-30 05:17:14
結果26W唔爭氣慳咗個名
莫蘭蒂:唔駛畀垃圾影衰我
2021-10-30 07:48:37
2021-10-30 10:09:18
留名很熱
2021-10-30 13:20:55

2021-10-30 14:21:58
潮濕
2021-10-30 14:26:53
點解好似同EC個時間唔同
2021-10-30 14:31:52
涼左兩日又變返夏天
2021-10-30 15:15:40
大交合9天預報最快都要8/11先最低19度
2021-10-30 15:17:09
19度都係短衫短褲踢拖出街
2021-10-30 15:18:15
依家啲人已經長boot出街 唔驚香港腳咩
2021-10-30 16:01:19
長boot咁小野
我見到有人連羽絨都拎埋出黎啦
香港人真係愈黎愈虧
2021-10-30 16:21:08
ec 00z
2021-10-30 21:51:13
今日陰天算係涼咗少少
琴晚熱到開冷氣
2021-10-30 21:58:35
唔好講笑 熱慣咗真係會唔慣凍
泰國跌到十幾度就有人凍死

不過香港年年都仲叫做有冬天 無理由唔慣
2021-10-30 22:09:53
咁癲?十一月頭就有機會寒警
2021-10-30 22:21:53
意思係11月頭就有寒冷天氣警告?
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