98W was given the number 20W by JTWC and the name MEKKHALA by JMA today, while intensifying to a severe tropical storm. At 20 HKT, MEKKHALA was centred about 780 km (420 NM) SW of Hong Kong.
As interactions with JANGMI diminished, MEKKHALA follows the week steering flow from the anticyclone in southern China and moves WNW. It is expected WNW movement will continue before landfall in central Vietnam.
Current T-number: T3.0/3.0/D1.0/24 HRS
MEKKHALA was able to intensify appreciably due to improved ventilation as JANGMI moves north and weakens. It should further intensify until landfall where land interactions will induce dissipation near t+48.
現時的 T 號碼: T3.0/3.0/D1.0/24 HRS
薔薇減弱令米克拉的輻合和輻散通道明顯改善。預料米克拉將繼續增強直至登陸,隨後將因缺乏水氣而急速減弱並在約 48 小時後消散。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
米克拉於未來的72小時將不會對香港構成任何影響。
Next Update 下次更新
23 HKT, 2008/09/30 (or earlier 或更早)
Probabilities of TC Signals from HKO 香港天文台(已)發出熱帶氣旋警告信號的機率
98W is currently moving N due to the lack in steering force and its interactions with JANGMI near Taiwan. As JANGMI moves off Taiwan, the subtropical ridge is expected to extend westward, and 98W will be steered NW then WNW at an increasing speed.
Current T-number: T2.0/2.0/INT OBS
98W has been struggling to survive as JANGMI has taken much of the moisture from the South China Sea, hampering 98W's inflow severely. Also shear was moderate to high in the past 24 hours. It is expected that 98W will slowly intensify as JANGMI moves further away from the South China Sea.
現時的 T 號碼: T2.0/2.0/INT OBS
由於薔薇消耗了部分南海的濕潤空氣,98W 的輻合並不能有效發展;加上垂直風切變中等至偏高,致使 98W 的強度停滯不前。預料當薔薇移離台灣,98W 將可慢慢增強。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
98W 於未來的72小時將不會對香港構成任何影響 。
Next Update 下次更新
23 HKT, 2008/09/29 (or earlier 或更早)
Probabilities of TC Signals from HKO 香港天文台(已)發出熱帶氣旋警告信號的機率
Signal 信號
t+12
t+24
t+36
t+48
t+72
Standby 戒備 #1
Medium 中等
Medium 中等
Medium 中等
Low 低
Strong Wind 強風 #3
Gale/Storm 烈風或暴風 #8
G/S Increasing 烈風或暴風增強 #9
Hurricane 颶風 #10
Notes 註:
1) "Signal" represents having issued that signal or above. "信號" 指該信號或更高。
2) "Low" = Probability from 5 to 20 per cent; "Medium" = 20 to 50%; "High" = 50 to 80%; "V High" = 80% or above.
"低" = 5% - 20% 的概率; "中等" = 20 - 50%; "高" = 50 - 80%; "極高" = 80% 或以上。