CHOI-WAN accelerates towards the northeast. At 14 HKT, CHOI-WAN was centred about 880 km (480 NM) E of Tokyo.
彩雲加速向東北移動。在 14 HKT，彩雲集結在東京以東約 880 公里 (480 海里)。
TC Naming 氣旋命名
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN will move NE to ENE along the northwestern periphery of the subtropical ridge. Track speed is expected to increase as it enters the westerlies.
彩雲將沿太平洋副熱帶高壓之西北部向東北或東北偏東移動。隨著彩雲進入西風帶，其速度將會逐漸增加。
Intensity Analysis 強度分析
Current T-number: T3.5/4.0/W1.0/24 HRS
CHOI-WAN has started extratropical transition, and will become an extratropical cyclone in the next 24 hours.
現時的 T 號碼: T3.5/4.0/W1.0/24 HRS
彩雲已開始開始溫帶氣旋轉化，預料於一日內完成。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
This is the final bulletin on CHOI-WAN.
這是本站對彩雲的最後一次發佈。
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
Not Applicable 不適用
Past Bulletins (click on the bulletin no. for the contents) 過往報告 (請按發佈編號顯示內容)
CHOI-WAN's eye has been filled with clouds. At 14 HKT, CHOI-WAN was centred about 480 km (260 NM) N of Iwo Jima.
彩雲的風眼已被填塞。在 14 HKT，彩雲集結在硫磺島以北約 480 公里 (260 海里)。
TC Naming 氣旋命名
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN is expected to recurve along the northwestern periphery of the subtropical ridge. Track speed is expected to increase as it enters the westerlies.
彩雲將沿太平洋副熱帶高壓之西北部向東北移動。隨著彩雲進入西風帶，其速度將會逐漸增加。
Intensity Analysis 強度分析
Current T-number: T4.5/5.0/S0.0/18 HRS
CHOI-WAN is now facing shear of increasing magnitude and cooler sea surfaces, and therefore it is expected to weaken gradually. Extratropical transition will start in a day's time.
現時的 T 號碼: T4.5/5.0/S0.0/18 HRS
彩雲進入高風切和較低水溫的環境，預料會逐漸減弱，並大約於一天後開始溫帶氣旋轉化。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
19 HKT, 2009/09/20 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN started to recurve. At 20 HKT, CHOI-WAN was centred about 230 km (120 NM) W of Iwo Jima.
彩雲路徑出現偏東分量。在 20 HKT，彩雲集結在硫磺島以西約 230 公里 (120 海里)。
TC Naming 氣旋命名
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN is expected to recurve along the northwestern periphery of the subtropical ridge.
彩雲將沿太平洋副熱帶高壓之西北部逐漸轉向東北移動。
Intensity Analysis 強度分析
Current T-number: T4.5/5.5/W1.5/24 HRS
CHOI-WAN has started an eyewall replacement cycle, and has displayed a double eyewall feature. It also weakened into a category 3 typhoon. CHOI-WAN is expected to weaken gradually as it faces increasingly unfavourable environments. Extratropical transition will start about two days later.
現時的 T 號碼: T4.5/5.5/W1.5/24 HRS
彩雲開始眼牆置換週期，並出現雙重眼壁特徵。它亦減弱為一三級颱風。預料彩雲將因週邊環境轉差而逐漸減弱，並大約於兩天後開始溫帶氣旋轉化。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
19 HKT, 2009/09/19 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
HKO Satellite 香港天文台衛星圖
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN is expected to turn north gradually into the weakness between the subtropical highs, and a typical recurvature scenario follows.
彩雲將逐漸轉向偏北移動，橫過副熱帶高壓間的弱點，其後於副高西北部轉向東北移動。
Intensity Analysis 強度分析
Current T-number: T6.0/6.5/W1.0/30 HRS
Eyewall temperature has risen, especially in the northwestern quadrant. CHOI-WAN is expected to weaken gradually as it turns north and faces increasingly unfavourable environments. Extratropical transition will start about three days later.
現時的 T 號碼: T6.0/6.5/W1.0/30 HRS
彩雲的眼牆溫度上升，尤以西北象限為甚。預料彩雲將因週邊環境轉差而逐漸減弱，並大約於三天後開始溫帶氣旋轉化。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
23 HKT, 2009/09/18 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN intensified into a category 5 super typhoon today (the previous cyclone in the NW Pacific to attain this intensity is JANGMI in 2008). At 14 HKT, CHOI-WAN was centred about 660 km (350 NM) SSE of Iwo Jima.
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
The subtropical high has broken into western and eastern halves. CHOI-WAN is expected to turn north gradually into the weakness, and a typical recurvature scenario follows.
Current T-number: T7.0/7.0/D0.5/24 HRS
Cloud top temperatures in the eyewall have dropped to below -70 degrees Celsius. CHOI-WAN has almost reached the maximum intensity that the ambient environment can support, and is expected to maintain strength in the next 24 hours. Weakening follows once CHOI-WAN reaches higher latitudes with lower sea surface temperatures.
現時的 T 號碼: T7.0/7.0/D0.5/24 HRS
彩雲的眼牆溫度已下降至攝氏 -70 度以下。彩雲已非常接近週邊環境所能容納的最高強度，並預料於未來 24 小時維持。彩雲稍後將於高緯較冷的海水下減弱。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
23 HKT, 2009/09/17 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN underwent rapid intensification last night and intensified into the first super typhoon of the year. At 14 HKT, CHOI-WAN was centred about 470 km (260 NM) NNE of Guam.
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
The part of the subtropical ridge north of CHOI-WAN has weakened and a weakness is seen to have developed. The approach of a mid-latitude trough will cause the weakness to widen, which should lead to a recurvature later in the forecast period.
Current T-number: T6.5/6.5/D2.0/24 HRS
CHOI-WAN developed a central dense overcast with a round and well-defined eye in excellent ambient environments. CHOI-WAN is expected to intensify further into a category 5 typhoon, attaining (nearly) the highest admissible strength that the adjacent environment can contain. Weakening follows once CHOI-WAN reaches higher latitudes with lower sea surface temperatures.
現時的 T 號碼: T6.5/6.5/D2.0/24 HRS
彩雲於極佳環境下發展出中心密集雲區，且建立出一圓渾對稱的風眼。預料彩雲將繼續增強至五級颱風強度 (幾乎達附近環境所能容納的最大強度)，稍後於高緯較冷的海水下減弱。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
19 HKT, 2009/09/16 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN is expected to travel WNW in the southern periphery of the subtropical ridge in the next 3 days. The approach of a mid-latitude trough will cause the ridge to weaken, which should lead to a recurvature later in the forecast period.
Current T-number: T4.5/4.5/D1.5/24 HRS
Sea temperatures in the region are high with low vertical wind shear. Outflow channels are excellent. As CHOI-WAN is far away from any major landmass, it is expected to intensify in the next 3 days.
現時的 T 號碼: T4.5/4.5/D1.5/24 HRS
彩雲附近海溫較高，垂直風切變微弱，而輻散通道甚佳。由於環境良好且彩雲與任何大陸距離尚遠，預料彩雲將於未來三日繼續增強。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
19 HKT, 2009/09/15 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
CHOI-WAN is the 88th name in the tropical cyclone name list. This name was contributed by Hong Kong and in Chinese it means (literally) colourful clouds. CHOI-WAN is also the name of a housing estate in Hong Kong. This name was last used in 2003.
CHOI-WAN continues to travel W/WNW in the southern periphery of the subtropical ridge. This is expected to continue until the ridge weakens about 5 days later, which should lead to a recurvature later in the forecast period.
Current T-number: T3.0/3.0/D1.0/24 HRS
Sea temperatures in the region are high with low vertical wind shear. Outflow channels are excellent. As CHOI-WAN is far away from any major landmass, it is expected to intensify into a major typhoon later.
現時的 T 號碼: T3.0/3.0/D1.0/24 HRS
彩雲附近海溫較高，垂直風切變微弱，而輻散通道甚佳。由於環境良好且彩雲與任何大陸距離尚遠，預料彩雲將於預測後期增強至一強勁颱風。
Effects on Hong Kong 對香港的影響
No threat to Hong Kong is expected within the next 72 hours.
彩雲於未來的 72 小時將不會對香港構成任何影響。
Next Update 下次更新
19 HKT, 2009/09/14 (or earlier 或更早)
Other Images 其他圖像
JTWC Track 聯合颱風警報中心路徑圖
JMA Track 日本氣象廳路徑圖
N/A 沒有資料
HKO Satellite 香港天文台衛星圖
N/A 沒有資料
HKO Track 香港天文台路徑圖
Probabilities of TC Signals from HKO 香港天文台 (已) 發出 / 取消熱帶氣旋警告信號的機率
Tropical disturbance 93W intensified into a tropical depression today, and was given the number 15W by the JTWC. At 14 HKT, 15W was centred about 860 km (460 NM) ENE of Guam.
15W is expected to travel west along the southern periphery of the subtropical ridge. Numerical models generally agree that the ridge will weaken about 5 to 6 days later, the magnitude of which is sufficient for a recurvature to occur.
Current T-number: T2.0/2.0/INT OBS
Sea temperatures in the region are high with low vertical wind shear. Outflow channels are excellent. As 15W is far away from any major landmass, it is expected to intensify into a major typhoon later in the forecast period.
Active Tropical Cyclone(s) 正活躍之熱帶氣旋
