蔡秉勳

jma:TD

傳奇@天氣人

這隻也有逐漸發展的趨勢

周子堯@FB

JTWC發布TCFA

1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
A 160 NM RADIUS OF 22.2N 122.0E 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 081800Z INDICATES THAT A
CIRCULATION CENTER IS LOCATED NEAR 20.9N 122.1E. THE SYSTEM IS
MOVING NORTHEASTWARD AT 05 KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 90W) PREVIOUSLY LOCATED
NEAR 20.0N 120.7E, IS NOW LOCATED NEAR 20.9N 122.1E, APPROXIMATELY
145 NM SOUTHEAST OF KAOHSIUNG, TAIWAN. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY SHOWS INCREASINGLY ORGANIZED FLARING CONVECTION
ABOVE A PARTIALLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC). IN
ADDITION, A 081653Z 88.2GHZ ATMS MICROWAVE IMAGE SHOWS FORMATIVE,
FRAGMENTARY BANDING WRAPPING INTO THE LLCC. THE ENVIRONMENT IS
OVERALL FAVORABLE, WITH WEAK UPPER LEVEL DIVERGENCE, LOW (10-15
KNOT) VERTICAL WIND SHEAR, AND WARM (28-30 CELSIUS) SEA SURFACE
TEMPERATURES. GLOBAL MODELS GENERALLY AGREE ON THE SYSTEM STAYING
QUASI-STATIONARY OVER THE NEXT 24-36 HOURS AS IT CONTINUES TO
DEVELOP, THEN HEADING WESTWARD TOWARDS HAINAN. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 18 TO 23 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 HIGH.

ericlin6925

這熱低(可能今晚就有機會成颱)是往東南部走，結果北部豪雨不斷，真是事事難料啊。

傳奇@天氣人

它的中心點及環流明顯的出現下午到晚上JMA, 可能就會升格了

傳奇@天氣人

對流爆發中，可能需要注意會突然升格

天篷大元帥

中央氣象局將此系統升格為熱帶性低氣壓

熱帶性低氣壓特報
發布時間：2018/09/09 17:00

帶性低氣壓１００４百帕，今（９日）下午２時位於北緯２３．５度，東經１２３．０度，即在巴士海峽，中心近似滯留，請在臺灣東半部海面及巴士海峽航行及作業船隻應特別注意，並請隨時注意本局發布之最新氣象資訊。

(取自中央氣象局)

周子堯@FB

天篷大元帥 發表於 2018-9-9 16:05
中央氣象局將此系統升格為熱帶性低氣壓
(取自中央氣象局)

CWB由於稍早定為有誤，因此重發了一次熱低特報XD(現在也還沒17時啊XD)

熱帶性低氣壓特報
                發布時間：2018/09/09 17:10

熱帶性低氣壓１００２百帕，今（９日）下午２時位於北緯２１．５度，東經１２３．０度，即在巴士海峽，中心近似滯留，請在臺灣東半部海面及巴士海峽航行及作業船隻應特別注意，並請隨時注意本局發布之最新氣象資訊。

人事行政總處(停班停課)資訊