SONGDA re-intensified last night and reached super typhoon intensity. It has weakened into a category 4 typhoon as it accelerates towards the ENE. At 2 pm, SONGDA was centred about 1330 km (720 NM) E of Tokyo.

桑達昨晚再度增強，並達到超級颱風強度。風暴現時已減弱為四級颱風，並加速向東北偏東移動。在下午 2 時，桑達集結在東京以東約 1330 公里 (720 海里)。

SONGDA is the 112th name in the tropical cyclone name list. It was contributed by Vietnam, and is the name of a river in the northern part of the country. This name was used in 2004 and 2011.

桑達為熱帶氣旋名稱列表中第 112 個名字，由越南提供，為該國北部一條河流的名字。此名曾於 2004 及 2011 年使用。

SONGDA is moving ENE along the northwestern periphery of the subtropical ridge. The storm is entering the westerlies and will continue to accelerate in the next 24 hours.

桑達正沿副熱帶高壓脊西北部向東北偏東移動。風暴正進入西風帶，預料會於未來 24 小時繼續加速。

Current T-number 現時的 T 號碼: T5.5/6.0/D0.5/24 HRS W1.0/12 HRS

SONGDA's eye enlarged and deepened last night; its central dense overcast is still very compact although it has crossed the ridge axis and is moving quickly. Weakening is expected as vertical wind shear rises and sea temperatures decrease. It will turn extratropical near t+24, still as a powerful system.

桑達的風眼昨晚擴大並變得更為深厚，雖然風暴已橫過脊線並開始加速，但其中心密集雲區仍非常緊密。隨著垂直風切變提升及海溫下降，預料風暴將會減弱。桑達將於 24 小時後轉化為溫帶氣旋，其威力仍然較為強勁。

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

預料桑達於未來的 72 小時將不會對香港構成影響。

2016/10/13 (Thu 四), afternoon 下午 (or earlier 或更早)

SONGDA intensified into a category 3 typhoon last night but is now weakening gradually. At 2 pm, SONGDA was centred about 680 km (370 NM) NE of Iwo Jima.

桑達昨晚增強為三級颱風，但現在正逐漸減弱。在下午 2 時，桑達集結在硫磺島東北約 680 公里 (370 海里)。

SONGDA is the 112th name in the tropical cyclone name list. It was contributed by Vietnam, and is the name of a river in the northern part of the country. This name was used in 2004 and 2011.

桑達為熱帶氣旋名稱列表中第 112 個名字，由越南提供，為該國北部一條河流的名字。此名曾於 2004 及 2011 年使用。

SONGDA has crossed the subtropical ridge axis and is now moving northeast along its northwestern periphery. The storm will move NE turning to ENE in the next 48 hours, and will accelerate within the westerlies.

桑達已橫過副熱帶高壓脊的脊線，現正沿該脊西北部向東北移動。預料風暴將於未來 48 小時向東北轉東北偏東移動，並於西風帶中加速。

Current T-number 現時的 T 號碼: T5.0/5.5/S0.0/24 HRS W0.5/12 HRS

SONGDA's eye is becoming cloud-filled. The storm is entering a region of much higher vertical wind shear. Together with a decrease in sea temperatures, the storm is expected to weaken steadily during the forecast period. Extratropical transition should commence near t+24 and be complete before t+48.

桑達的風眼開始被雲層覆蓋。風暴正進入垂直風切變非常高的地區，加上海溫下降，預料風暴會於預測期內穩步減弱。桑達將於約 24 小時後開始溫帶氣旋轉化，並於 48 小時內完成。

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

預料桑達於未來的 72 小時將不會對香港構成影響。

2016/10/12 (Wed 三), afternoon 下午 (or earlier 或更早)

SONGDA has intensified quickly into a typhoon, and is turning north. At 2 pm, SONGDA was centred about 470 km (250 NM) E of Iwo Jima.

桑達快速增強為颱風，移向逐漸轉北。在下午 2 時，桑達集結在硫磺島以東約 470 公里 (250 海里)。

SONGDA is the 112th name in the tropical cyclone name list. It was contributed by Vietnam, and is the name of a river in the northern part of the country. This name was used in 2004 and 2011.

桑達為熱帶氣旋名稱列表中第 112 個名字，由越南提供，為該國北部一條河流的名字。此名曾於 2004 及 2011 年使用。

SONGDA is now situated in the western periphery of the Pacific subtropical ridge, and will cross the ridge axis in the next 12 hours. It will then turn northeast along the northwestern periphery of the subtropical ridge, and should accelerate within the westerlies.

桑達處於太平洋副熱帶高壓脊西沿，預料將於未來 12 小時橫過副高脊線，隨後沿該脊西北部轉向東北移動，並於西風帶中加速。

Current T-number 現時的 T 號碼: T5.0/5.0/D2.0/24 HRS

SONGDA has developed a solid central dense overcast and an eye is clearly embedded in the centre. Due to improved outflow associated with the passing trough and warm sea temperatures, the storm is expected to intensify in the next 12 to 24 hours. It will weaken after that due to increasing vertical wind shear, and extratropical transition should begin near t+48. SONGDA is expected to turn extratropical before t+72.

桑達發展出一中心密集雲區，風眼於其中心清晰可見。受惠於西風槽前良好輻散及較暖海溫，預料風暴會於未來 12 至 24 小時繼續增強。此後，垂直風切變將提升，桑達會開始減弱，並於約 48 小時後開始溫帶氣旋轉化。預料桑達將於 72 小時內完成轉化。

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

預料桑達於未來的 72 小時將不會對香港構成影響。

2016/10/11 (Tue 二), afternoon 下午 (or earlier 或更早)

23W has intensified into a tropical storm, and was named SONGDA. At 2 pm, SONGDA was centred about 920 km (500 NM) ESE of Iwo Jima.

23W 已增強為熱帶風暴，被命名為桑達。在下午 2 時，桑達集結在硫磺島東南偏東約 920 公里 (500 海里)。

SONGDA is the 112th name in the tropical cyclone name list. It was contributed by Vietnam, and is the name of a river in the northern part of the country. This name was used in 2004 and 2011.

桑達為熱帶氣旋名稱列表中第 112 個名字，由越南提供，為該國北部一條河流的名字。此名曾於 2004 及 2011 年使用。

The centre of the Pacific subtropical ridge has shifted east. SONGDA is now in its southwestern periphery and will move increasingly poleward. It will decelerate and cross the ridge axis near t+36, and will then recurve sharply towards the ENE. As the storm becomes embedded within the westerlies, it will move rather quickly towards the end of the forecast period.

太平洋副熱帶高壓脊的中心有所東移，桑達處於該脊西南沿，預料其移向將逐漸轉北。風暴將減速並於約 36 小時後橫過副高脊線，隨後轉向東北偏東移動。預測後期桑達將進入西風帶，其移速會較高。

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

SONGDA's structure is symmetric although there are more convections in the western semicircle. Intensification is expected as outflow improves ahead of a passing trough, and sea temperatures remain favourable. It should reach maximum intensity between t+48 and t+72, after which gradual weakening and extratropical transition will occur.

桑達的結構對稱，但西半圓有較多對流。由於該區海溫較暖，加上西風槽前輻散增加，預料桑達會增強。桑達將於 48 至 72 小時後到達顛峰強度，隨後將逐漸減弱，並轉化為溫帶氣旋。

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

預料桑達於未來的 72 小時將不會對香港構成影響。

2016/10/10 (Mon 一), afternoon 下午 (or earlier 或更早)

Tropical disturbance 94C in the northwest Pacific has intensified into tropical depression 23W. At 2 pm, 23W was centred about 1610 km (870 NM) ESE of Iwo Jima.

於西北太平洋的熱帶擾動 94C 已增強為熱帶低氣壓 23W。在下午 2 時，23W 集結在硫磺島東南偏東約 1610 公里 (870 海里)。

N/A 不適用

The Pacific subtropical ridge is anchored southeast of Japan. 23W is in the southern periphery of the ridge and is expected to move WNW quickly in the next 24 hours. The storm will reach the southwestern edge of the ridge near t+24, and will move increasingly poleward after that. Its track speed will also decrease as it crosses the ridge axis near t+72.

太平洋副熱帶高壓脊中心於日本東南方，23W 處於其南沿，預料將於未來 24 小時向西北偏西以較快速度移動。24 小時後，風暴到達副高西南部，預料其移向將逐漸轉北。風暴將於約 72 小時後橫過副高脊線，移速將會較慢。

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

After several days of organization, 23W is finally showing a decent banding signature, with more convections in its northwestern quadrant. Gradual intensification is expected in the next 72 hours as sea temperatures are rather high and vertical wind shear is at a low to moderate level. As outflow improves, a faster rate of intensification is expected near t+72.

經過數天的整合，23W 終於發展出清晰螺旋雲帶，對流較集中於風暴西北象限。由於該區海溫頗高，加上垂直風切變處於低至中等水平，預料風暴將於未來 72 小時逐漸增強。隨著輻散改善，72 小時後風暴增強速度或會加快。

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

預料 23W 於未來的 72 小時將不會對香港構成影響。

2016/10/09 (Sun 日), afternoon 下午 (or earlier 或更早)