老農民版夜神月

  基本資料  
編號               ：90 W
擾動編號日期 ：2021 年 01 月 18 日 19 時
撤編日期        ：2021 年 01 月 20 日 10 時
90W.INVEST.15kts.1004mb.6N.127.5E

老農民版夜神月

JTWC1230Z馬上評級Medium

(1) AN AREA OF CONVECTION (INVEST 90W) HAS PERSISTED NEAR 8.2N
126.7E, APPROXIMATELY 92 NM NORTHEAST OF DAVAO, PHILIPPINES.
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND AN 180723Z SSMI
85GHZ MICROWAVE IMAGE DEPICT A DEFINED LOW LEVEL CIRCULATION CENTER
WITH PERSISTENT CONVECTION OVER THE NORTHERN SEMICIRCLE. AN 180116Z
ASCAT-B IMAGE DEPICTS 25-30KT WINDS IN THE NORTHERN SEMICIRCLE BUT
WEAKER 15-20KT WINDS IN THE SOUTHERN SEMICIRCLE. ENVIRONMENTAL
ANALYSIS DEPICTS A MARGINAL ENVIRONMENT FOR DEVELOPMENT WITH
MODERATE TO HIGH (>25KTS) EASTERLY VERTICAL WIND SHEAR, STRONG
DIFFLUENCE ALOFT, AND WARM (29C) SEA SURFACE TEMPERATURES, OFFSET BY
THE PROXIMITY TO LAND. GLOBAL MODELS ARE IN GENERAL AGREEMENT THAT
INVEST 90W WILL TRACK POLEWARD ALONG THE EASTERN COASTLINE OF THE
PHILIPPINES. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO
20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1003
MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS MEDIUM.

king111807

【天氣動態提醒】

北方冷空氣暫告一段落，

接下來換南方暖勢力登場啦！

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西北太平洋今年第１個低壓擾動９０Ｗ已經誕生，

-

今天～週四(21)之間穿越菲律賓，

順著氣流往西北轉北進行，

因為大多在菲律賓附近活動，

不會有太大的發展，

但雲系週五(22)就會抵達台灣，

(快的話週四下半天)

到時候有機會讓各地下一些雨，

至於降雨多寡，還有待觀察。

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比較可以確定的是，

週六(23)一道鋒面通過，

屆時再與南方水氣結合，降雨會更明顯一些。

總之，週四下半天至週六整天，

有安排室外活動的朋友要注意囉！

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圖資：RAMMB、EC、CWB

老農民版夜神月

JMA18Z判定其已升格為TD

TROPICAL DEPRESSION 1008 HPA AT 14N 124E NW SLOWLY.

dom

JTWC0230Z撤銷評級，FNMOC撤編

(1) THE AREA OF CONVECTION (INVEST 90W) PREVIOUSLY LOCATED
NEAR 8.2N 126.7E HAS DISSIPATED AND IS NO LONGER SUSPECT FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE IN THE NEXT 24 HOURS.

老農民版夜神月

JMA12Z取消TD