WIPHA moved WNW/NW in the past 24 hours and intensified further into a category 4 typhoon. At 06 UTC, WIPHA was centred 130 km (70 NM) ENE of Taipei.

韋帕在過去 24 小時向西北偏西至西北方向移動，並繼續增強為一股四級颱風。於 06 UTC，韋帕集結於台北東北偏東約 130 公里 (70 海里)。

An extending subtropical ridge is anchored NE of WIPHA. With the ridge as the primary steering force, it is expected that WIPHA will travel NW to NNW along the southwestern periphery of the ridge in the next 24 hours. At that time it is forecast that WIPHA will be linked to an arriving mid-latitude trough and will travel N along the western periphery of the subtropical ridge. Later in the forecast period, WIPHA will be affected by the westerlies to turn to a NNE/NE direction.

一個稍為西伸的副熱帶高壓脊正處於韋帕東北部，韋帕將於未來 24 小時沿該脊之西南部向西北偏西至西北移動。24 小時以後，韋帕被西風槽牽引，沿副熱帶高壓脊之西部向北移動。其後受西風帶的影響，韋帕將轉向東北偏北至東北方移動。

As of 06 UTC, WIPHA's T-number was 6.5 or equivalently carried 130 knots wind (typhoon category 4). WIPHA was previously subjected to enhanced poleward outflow that enabled it to intensify at greater than climatological rate. It is expected that WIPHA will remain strength before making landfall near Shanghai, after which land interaction, lower sea surface temperatures and higher vertical wind shear will cause WIPHA's strength to decrease.

在 06 UTC，韋帕的T號碼為6.5，即 130 節的風速 (四級颱風)。韋帕的極向輻散通道繼續轉好，有利它在登陸上海附近前維持強度。預料韋帕將於登陸後受地形、較冷的海水及強烈垂直風切變的影響而減弱。

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

韋帕於未來的72小時將不會對香港構成任何影響。

19 HKT, 2007/09/19 (or earlier 或更早)

WIPHA moved WNW/NW in the past 24 hours and intensified rapidly into a category 2 typhoon. At 06 UTC, WIPHA was centred 580 km (310 NM) ESE of Taipei.

韋帕在過去 24 小時向西北偏西至西北方向移動，並增強為一股二級颱風。於 06 UTC，韋帕集結於台北東南偏東約 580 公里 (310 海里)。

An extending subtropical ridge is anchored NE of WIPHA. With the ridge as the primary steering force, it is expected that WIPHA will travel WNW turning to NW/NNW along the southwestern periphery of the ridge in the next 36 hours. At that time it is forecast that WIPHA will be linked to an arriving mid-latitude trough and will travel N along the western periphery of the subtropical ridge. Later in the forecast period, WIPHA will be affected by the westerlies to turn to a NNE/NE direction.

一個稍為西伸的副熱帶高壓脊正處於韋帕東北部，韋帕將於未來 36 小時沿該脊之西南部向西北偏西至西北移動。36 小時以後，韋帕被西風槽牽引，沿副熱帶高壓脊之西部向北移動。其後受西風帶的影響，韋帕將轉向東北偏北至東北方移動。

As of 06 UTC, WIPHA's convection wrapped 1.1 on the log10 spiral which yielded a T-number of 5.0 or equivalently 90 knots wind (typhoon category 2). WIPHA is now subjected to enhanced poleward outflow that enables it to intensify at greater than climatological rate. It is expected that WIPHA will intensify before making landfall near Shanghai, after which land interaction, lower sea surface temperatures and higher vertical wind shear will cause WIPHA's strength to decrease.

在 06 UTC，韋帕的T號碼為5.0，即 90 節的風速 (二級颱風)。韋帕的極向輻散通道繼續轉好，有利它在登陸上海附近前增強。預料韋帕的強度將於 36 小時後到達巔峰，其後韋帕將會受地形、較冷的海水及強烈垂直風切變的影響而減弱。

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

韋帕於未來的72小時將不會對香港構成任何影響。

19 HKT, 2007/09/18 (or earlier 或更早)

13W was given the name WIPHA by the JMA at 00 UTC. WIPHA moved slowly in the WNW direction in the past 24 hours, intensifying into a tropical storm. At 06 UTC, WIPHA was centred 720 km (390 NM) SSE of Okinawa.

13W 於 00 UTC 被日本氣象廳命名為韋帕。於 06 UTC，韋帕集結在沖繩島東南偏南約 720 公里 (390 海里)。

A broad subtropical ridge is anchored NE of WIPHA. With the ridge as the primary steering force, it is expected that WIPHA will travel WNW turning to NW along the southwestern periphery of the ridge. However uncertainties exist regarding the degree of recurvature - there is also a chance that WIPHA will make landfall at Eastern China if it is not picked up by the arriving mid-latitude trough.

一個廣闊的副熱帶高壓脊正處於韋帕東北部，韋帕將於未來 72 小時沿該脊之西南部向西北偏西至西北移動。可是，韋帕轉向的幅度如何很大程度要看究竟韋帕會否被西風槽牽引 --- 如果影響較小，韋帕有機會在中國東部登陸。

As of 06 UTC, WIPHA's convection wrapped 1.0 on the log10 spiral which yielded a T-number of 3.5 or equivalently 45-55 knots wind (tropical storm to severe tropical storm). Recent analyses showed that the northern TUTT cell inhibiting WIPHA's intensification is weakening gradually, providing room for rapid intensification in the next 72 hours. If WIPHA is able to traverse the East China Sea without making landfall at China, WIPHA's strength should peak at t+72 when it crosses the ridge axis, after which WIPHA should weaken subject to low sea surface temperatures and high vertical wind shear.

在 06 UTC，韋帕的T號碼為3.5，即 45 至 55 節的風速 (熱帶風暴至強烈熱帶風暴)。因阻塞韋帕增強的熱帶高對流槽正減弱，韋帕有機會在未來 72 小時急速增強。如韋帕未有登陸中國，它的強度將於 72 小時後到達巔峰，其後韋帕將會受較冷的海水及強烈垂直風切變的影響而減弱。

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

韋帕於未來的72小時將不會對香港構成任何影響。

19 HKT, 2007/09/17 (or earlier 或更早)

A tropical disturbance ESE of Taiwan slowly organized and intensified into a tropical depression at 06 UTC, which was given a temporary number of 13W by JTWC. At 06 UTC, 13W was centred 870 km (470 NM) SE of Okinawa.

一個位於台灣東南偏東方的低壓區在 06 UTC 增強為一熱帶低氣壓，被 JTWC 給予臨時編號 13W。於 06 UTC，13W 集結在沖繩島東南約 870 公里 (470 海里)。

A broad subtropical ridge is anchored NE of 13W. With the ridge as the primary steering force, it is expected that 13W will travel NW to NNW along the southwestern periphery of the ridge in the next 72 hours.

一個廣闊的副熱帶高壓脊正處於 13W 東北部，13W 將於未來 72 小時沿該脊之西南部向西北至西北偏北移動。

As of 06 UTC, 13W's convection wrapped 0.5 on the log10 spiral which yielded a T-number of 2.0 or equivalently 25-30 knots wind (tropical depression). As the sea is generally warm and the outflow channels of 13W can still be improved, it is expected that 13W will intensify at a climatological rate until t+36, followed by an intensification at less than climatological rate till t+72 due to lower sea surface temperatures after the passage of NARI.

在 06 UTC，13W 的T號碼為2.0，即 25 至 30 節的風速 (熱帶低氣壓)。因海水溫度頗高及13W的輻散通道尚有轉好的空間，13W 將於未來 36 小時以氣候平均值之速度增強。及後由於受到百合經過後造成的較低海水溫度之影響，13W 將會以低於氣候平均值之速度增強。

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

13W 於未來的72小時將不會對香港構成任何影響。

20 HKT, 2007/09/16 (or earlier 或更早)