KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH is expected to move northeast along the northwestern periphery of the subtropical ridge in the next 36 hours.
預料科羅旺將於未來 36 小時沿副熱帶高壓脊西北部向東北移動。
Intensity
Analysis 強度分析
Current T-number 現時的 T 號碼: T3.0/3.5/W1.0/24 HRS
KROVANH is now subject to high vertical wind shear and most convections are displaced to the east. The storm entered the baroclinic zone sooner than forecast and is now expected to turn into an extratropical cyclone between t+24 and t+36.
KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH is crossing the subtropical ridge axis, and is expected to turn NE along the northwestern periphery of the ridge in the next 24 hours. The subtropical ridge is expected to weaken, and due to a weak westerly flow at high latitudes, KROVANH is not expected to move quickly at later taus. There is also substantial uncertainty to its track beyond t+72 due to the weak and complex steering environment.
KROVANH has weakened over the past 24 hours as its eye was filled and its convections became less symmetric. It is entering a region of higher vertical wind shear, and should weaken gradually over the next 48 to 72 hours. Extratropical transition is expected to be complete between t+72 and t+96.
KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH is now situated at the western periphery of the subtropical ridge, and is expected to cross the ridge axis in the next 24 hours. The storm will then turn NNE/NE along the northwestern periphery of the ridge. KROVANH is not expected to move quickly towards the end of the forecast period due to a weak westerly flow at higher latitudes.
Current T-number 現時的 T 號碼: T4.5/5.5/S0.0/24 HRS W1.0/06 HRS
KROVANH's eye consolidated last night but the storm is showing signs of weakening in the past 6 hours. It will soon enter cooler seas with higher vertical wind shear, and persistent weakening is expected. Extratropical transition is expected by t+120.
KROVANH has intensified quickly into a typhoon. At 8 am, KROVANH was centred about 560 km (300 NM) SE of Iwo Jima.
科羅旺快速增強為一颱風。在上午 8 時，科羅旺集結在硫磺島東南約 560 公里 (300 海里)。
TC
Naming 氣旋命名
KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH has reached the southwestern periphery of the subtropical ridge, and is expected to turn north and cross the ridge axis near t+36. It will then turn north-northeast along the northwestern periphery of the ridge. KROVANH is not expected to accelerate much towards the end of the forecast period due to a weak westerly flow at higher latitudes.
KROVANH is developing a banding eye. As sea temperatures, vertical wind shear and upper-level divergence remain very favourable, KROVANH is expected to intensify quickly in the next 24 hours. It should reach peak intensity by t+36, after which the atmospheric environment will deteriorate and this will lead to the weakening of the system. Extratropical transition is expected by t+120.
KROVANH is the 85th name in the tropical cyclone name list. It was contributed by Cambodia, and is the name of a kind of tree. This name was used in 2003 and 2009, with the former necessitating the #3 Strong Wind Signal.
KROVANH is expected to move WNW in the next 24 hours along the southern periphery of the subtropical ridge. A mid-latitude trough is expected to weaken the ridge near t+48, allowing KROVANH to turn north and eventually recurve.
KROVANH's convective banding has improved considerably over the past 24 hours. Steadily intensification in warm seas with reduced vertical wind shear is expected through t+72, after which the storm should weaken due to lower sea temperatures.
Tropical disturbance 96W over northwestern Pacific has intensified into tropical depression 20W. At 8 am, 20W was centred about 850 km (460 NM) NE of Guam.
20W is currently situated in the southern periphery of a subtropical ridge which extends to the south east of the storm. Due to the ridging both east and north of 20W, it is expected to move WNW to NW in the next 72 hours.
The bulk of 20W's convections are sheared to the west, partly exposing its low-level circulation centre. Initial development will be limited due to persistent shear and the need for the storm to consolidate, but quicker strengthening can be expected later as shear relaxes and outflow improves.
Active Tropical Cyclone(s) 正活躍之熱帶氣旋
