KOPPU has reached Luzon Strait and is moving eastward. At 8 am, KOPPU was centred about 440 km (240 NM) SSE of Kaohsiung.

巨爵到達呂宋海峽並東移。在上午 8 時，巨爵集結在高雄東南偏南約 440 公里 (240 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is moving east in the northern periphery of an equatorial ridge. The subtropical ridge to its east is expected to strengthen soon, guiding the storm back to the north. KOPPU is forecast to turn east again near t+96 as it reaches the northern periphery of the subtropical ridge.

巨爵正沿赤道高壓脊北部東移。於巨爵以東的副熱帶高壓脊將於短期內增強，令風暴再度北移。預料巨爵將於 96 小時後到達副高北部，並轉向偏東。

Current T-number 現時的 T 號碼: T1.5/2.5/W1.0/24 HRS

KOPPU's deep convections are almost completely gone, leaving a disorganized low-level circulation centre. The environmental conditions near Luzon Strait have worsened and KOPPU is not expected to reintensify. The storm should weaken slowly within the next 48 hours into a tropical depression.

巨爵的深層對流幾乎全部消失，只剩下一個缺乏組織的低層對流中心。由於呂宋海峽一帶的大氣環境轉差，預料巨爵將不會重新增強，並於 48 小時內減弱為熱帶低氣壓。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/22 (Thu 四), afternoon 下午 (or earlier 或更早)

KOPPU has further weakened into a tropical storm. At 8 am, KOPPU was centred about 450 km (240 NM) S of Kaohsiung.

巨爵進一步減弱為熱帶風暴。在上午 8 時，巨爵集結在高雄以南約 450 公里 (240 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is expected to move NE slowly along the northwestern periphery of an equatorial ridge, before turning N or NNE again at Luzon Strait as the subtropical ridge to its east strengthens.

預料巨爵將沿赤道高壓脊西北部向東北緩慢移動，並於到達呂宋海峽時因其東面副熱帶高壓脊增強而向北或東北偏北移動。

Current T-number 現時的 T 號碼: T2.5/3.0/W1.0/24 HRS

Due to prolonged land disruption, KOPPU's convections appear very disorganized. The storm will weaken slightly in the next 24 hours as it moves to northern Luzon. It may strengthen again as it travels along Luzon Strait.

由於巨爵長期受陸地影響，它的對流變得非常散亂。預料風暴將於未來 24 小時移至呂宋北部並稍為減弱，並有可能於橫過呂宋海峽時重新增強。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/21 (Wed 三), afternoon 下午 (or earlier 或更早)

KOPPU has weakened into a severe tropical storm and it is currently just off the western coast of Luzon. At 8 am, KOPPU was centred about 310 km (170 NM) NNW of Manila.

巨爵減弱為強烈熱帶風暴，現時於呂宋西岸近海。在上午 8 時，巨爵集結在馬尼拉西北偏北約 310 公里 (170 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

An equatorial ridge can be seen building south of KOPPU. The storm will likely move NNE to NE until it reaches Luzon Strait, after which it should move north along the western periphery of the subtropical ridge.

赤道高壓脊正於巨爵以南建立，受其影響預料巨爵將向東北偏北至東北移動，至風暴到達呂宋海峽時它將處於副熱帶高壓脊西沿，並向偏北方向移動。

Current T-number 現時的 T 號碼: T3.5/4.0

Due to land interaction, KOPPU's convections are concentrated in its western semicircle. The storm is expected to weaken further as it moves around or across Luzon. It should be able to strengthen again once it reaches Luzon Strait.

受地形影響，巨爵的對流集中於其西半圓。預料風暴將於橫過呂宋近岸或陸上時進一步減弱，但應能於呂宋海峽重新增強。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/20 (Tue 二), afternoon 下午 (or earlier 或更早)

KOPPU intensified into a super typhoon last night before making landfall at Luzon shortly after midnight today. It is now tracking inland and has weakened into category 3. At 8 am, KOPPU was centred about 160 km (85 NM) NNE of Manila.

巨爵昨晚增強為超級颱風，並於午夜過後登陸呂宋，現時正橫過內陸並減弱為三級颱風。在上午 8 時，巨爵集結在馬尼拉東北偏北約 160 公里 (85 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

The subtropical ridge is weakening and KOPPU is expected to turn poleward anytime soon. However the storm seems to be maintaining forward (westward) momentum and our track forecast has thus been shifted westward accordingly, predicting the storm to turn north just west of the mountains in central to western Luzon. Given KOPPU's imminent poleward turn, it is possible that the low-level circulation centre is split by the mountain range and a secondary centre is formed either west or east of it.

After crossing Luzon, KOPPU is expected to turn NNE then N along the western periphery of the subtropical ridge. Numerical models have come to better agreement but the variability is still large due to the uncertainty induced by Luzon's topography and the behaviour of the subtropical ridge.

副熱帶高壓脊正減弱，預料巨爵即將北轉。但由於巨爵仍保持西移動力，本報預測路徑略為西調，預計風暴會於呂宋的高山以西向北移動。由於巨爵即將轉向，其低層環流中心有可能被呂宋山脈分割，並於其東或西面出現副中心。

橫過呂宋後，預料巨爵將沿副高西部向東北偏北轉北移動。數值預報間的分歧減少，但由於呂宋地形複雜及副高強度變化幅度並未明朗，風暴路徑之不確定性仍大。

Current T-number 現時的 T 號碼: N/A 不適用

KOPPU's eye has disappeared upon landfall. It is expected to weaken rapidly as its low-level structure is damaged by the Luzon terrain. It is expected to emerge from northern Philippines as a tropical storm. Once KOPPU re-enters sea, the environment near Luzon Strait is good enough for the storm to pick up strength again.

巨爵的風眼於登陸後不久消失。受呂宋陸地影響，預料巨爵將急速減弱，並以熱帶風暴強度離開菲律賓北部。由於呂宋海峽一帶環境良好，巨爵重新入海後應能再度增強。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/19 (Mon 一), afternoon 下午 (or earlier 或更早)

KOPPU has slowed down and intensified into category 3. At 8 am, KOPPU was centred about 400 km (220 NM) ENE of Manila.

巨爵速度減慢，並增強為三級颱風。在上午 8 時，巨爵集結在馬尼拉東北偏東約 400 公里 (220 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is expected to move west in the next 24 hours and make landfall over Luzon tomorrow. As the ridge north of the storm weakens, KOPPU will turn north on land. This is the concensus of various numerical models, but land interaction involves complex mechanism and there is significant variability on where KOPPU turns north. The current forecast depicts KOPPU picking the relatively lower terrain in eastern Luzon.

Models diverge on KOPPU's movement as it exits Luzon. The subtropical ridge to its east is expected to strengthen again at that time, but CHAMPI is in the way and may block the ridge's westward extension. The current forecast favours the scenario that KOPPU continues to the north.

巨爵將於未來 24 小時西移，於明天登陸呂宋。隨著巨爵以北的副熱帶高壓脊減弱，風暴將於陸上轉向北移。雖然數值預報模式大多預計風暴於陸上轉向，但由於風暴與陸地間的影響複雜，現階段難以預料確實轉向地點，本報預計巨爵沿呂宋東部的低地北上。

離開呂宋後，數值模式對巨爵的路徑出現重大分歧。預料屆時於巨爵以東的副高將重新增強，但由於薔琵緯度仍低，它或會阻礙副高向西伸展。本報預計巨爵將於呂宋海峽繼續緩慢北移。

Current T-number 現時的 T 號碼: T5.5/5.5/D1.0/24 HRS

KOPPU is developing a central dense overcast and its eye becomes visible on satellite images. The storm will continue to intensify in the next 12 to 24 hours, possibly reaching category 4 tonight. The extent of the storm's weakening upon landfall depends on how long it stays on Luzon, which is highly uncertain at this stage. Once KOPPU re-enters sea, the environment near Luzon Strait is good enough for the storm to pick up strength again.

巨爵正發展中心密集雲區，其風眼開始於衛星雲圖上可見。預料風暴會於未來 12 至 24 小時繼續增強，或於今晚成為四級颱風。登陸後，巨爵的減弱程度取決於它於呂宋徘徊的時間，現階段不確定性仍非常大。由於呂宋海峽一帶環境良好，巨爵重新入海後應能再度增強。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/18 (Sun 日), afternoon 下午 (or earlier 或更早)

KOPPU has intensified into a typhoon and is moving westward steadily. At 8 am, KOPPU was centred about 700 km (380 NM) E of Manila.

巨爵已增強為颱風，並穩定向西移動。在上午 8 時，巨爵集結在馬尼拉以東約 700 公里 (380 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is expected to move west towards Luzon in the next 48 hours, along the southern periphery of the subtropical ridge. The ridge is expected to weaken after t+48, and this will cause KOPPU to decelerate and turn poleward.

預料巨爵將於未來 48 小時沿副熱帶高壓脊南部向西移動，趨向呂宋一帶。該脊將於約 48 小時後減弱，令巨爵減速並北轉。

Current T-number 現時的 T 號碼: T4.5/4.5/D1.0/24 HRS

KOPPU's convections have tightened further. The storm will continue to intensify in warm seas with decent divergence and low vertical wind shear. The extent of the storm's weakening upon landfall depends on how long it stays on Luzon, which is highly uncertain at this stage.

巨爵的對流進一步收緊，預料風暴將於溫暖海域、良好高空輻散及低垂直風切變的環境下增強。登陸後，巨爵的減弱程度取決於它於呂宋徘徊的時間，現階段不確定性仍非常大。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/17 (Sat 六), afternoon 下午 (or earlier 或更早)

KOPPU has intensified into a severe tropical storm. At 8 am, KOPPU was centred about 1150 km (620 NM) E of Manila.

巨爵已增強為強烈熱帶風暴。在上午 8 時，巨爵集結在馬尼拉以東約 1150 公里 (620 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is expected to move west towards Luzon in the next 72 hours, along the southern periphery of the subtropical ridge. The ridge is expected to weaken after t+72, and this will cause KOPPU to decelerate and turn poleward.

預料巨爵將於未來 72 小時沿副熱帶高壓脊南部向西移動，趨向呂宋一帶。該脊將於約 72 小時後減弱，令巨爵減速並北轉。

Current T-number 現時的 T 號碼: T3.5/3.5/D0.5/24 HRS

KOPPU's circulation centre has realigned with its convective patch. In warm seas with decent divergence, KOPPU is expected to intensify steadily before landfall. The extent of the storm's weakening depends on how long it stays on Luzon, which is highly uncertain at this stage.

巨爵的對流中心再次嵌入主對流團下發展，預料風暴將於溫暖海域及良好高空輻散的環境下逐漸增強直至登陸。登陸後風暴減弱程度取決於它於呂宋徘徊的時間，現階段不確定性非常大。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/16 (Fri 五), afternoon 下午 (or earlier 或更早)

24W has intensified into a tropical storm, and was named KOPPU. At 8 am, KOPPU was centred about 710 km (380 NM) NNW of Yap.

24W 已增強為熱帶風暴，並被命名為巨爵。在上午 8 時，巨爵集結在雅蒲島西北偏北約 710 公里 (380 海里)。

KOPPU is the 89th name in the tropical cyclone name list. It was contributed by Japan, meaning the constellation Crater. This name was used in 2003 and 2009, with the latter necessitating the #8 Gale or Storm Signal in Hong Kong.

巨爵為熱帶氣旋名稱列表中第 89 個名字，由日本提供，為一星座的名稱。此名曾於 2003 及 2009 年使用，後者曾令香港天文台發出八號烈風或暴風信號。

KOPPU is expected to move west towards Luzon in the next 120 hours, along the southern periphery of the subtropical ridge. The ridge is expected to weaken towards the end of the forecast period, and this will cause KOPPU to decelerate and turn poleward.

預料巨爵將於未來 120 小時沿副熱帶高壓脊南部向西移動，趨向呂宋一帶。該脊將於預測後期減弱，令巨爵減速並北轉。

Current T-number 現時的 T 號碼: T3.0/3.0/D1.5/24 HRS

KOPPU is suffering from strong southwesterly shear, leaving its low-level circulation centre exposed. The storm is however in an area with decent divergence and sea temperatures, and should be able to intensify gradually. Faster development is expected just before the storm makes landfall in the Philippines.

巨爵正受較強西南垂直風切變影響，其低層環流中心外露。可是，巨爵附近高空輻散強勁，加上海溫較高，預料風暴將可逐漸增強，增強速度會於其登陸菲律賓前加快。

No threat to Hong Kong is expected within the next 72 hours.

預料巨爵於未來的 72 小時將不會對香港構成影響。

2015/10/15 (Thu 四), afternoon 下午 (or earlier 或更早)

Tropical disturbance 91W near Guam has intensified into tropical depression 24W. At 8 am, 24W was centred about 300 km (160 NM) NW of Guam.

於關島附近的熱帶擾動 91W 已增強為熱帶低氣壓 24W。在上午 8 時，24W 集結在關島西北約 300 公里 (160 海里)。

N/A 不適用

24W is expected to move west in the next 72 hours along the southern periphery of a broad subtropical ridge that is currently covering the mid-latitude areas over the northwestern Pacific.

副熱帶高壓脊正覆蓋西北太平洋中緯度地區，預料 24W 將於未來 72 小時沿該脊南部向西移動。

Current T-number 現時的 T 號碼: T1.5/1.5/INT OBS

24W's convections are sheared to the west of its low level circulation centre. However there is vigorous upper-level divergence and, together with high sea temperatures, should allow the storm to intensify steadily over the next 72 hours.

24W 的對流被切離至其低層環流中心西面。可是，該區高空輻散強勁，加上海溫較高，預料風暴可於未來 72 小時穩定增強。

No threat to Hong Kong is expected within the next 72 hours.

預料 24W 於未來的 72 小時將不會對香港構成影響。

2015/10/14 (Wed 三), afternoon 下午 (or earlier 或更早)