IR animation, OSCAT and ASCAT passes hinted that a low level circulation centre (Tropical Disturbance 94W) has formed near Chuuk… or 9N 151E… Upper level analysis shows excellent outflow over the region… Convection is intermittent but appears to be flaring up around … Continue reading
At around 12:30 HKT (0430Z)… a thunderstorm cell brought hails of size more than 5 cm to Shaoguan, Guangdong Province of China… The hail-fall lasted for more than 5 minutes… Radar imagery shows an intense storm cell with reflectivity of 75 dBZ?!!
The low level circulation centre of 90C is now fully exposed… This system should weaken further in the coming few days…
90C has entered the Northwestern Pacific… Little change to the organization of 90C… Convection has developed slightly closer to the centre… but it’s still partly exposed… Sustained wind speed around the centre is about 20 kts based on ASCAT descending … Continue reading
An sub-tropical low (Tropical Disturbance 90C) is located near 18N 178W… just east of the Dateline… Its low level circulation centre is complete but mostly exposed… rather warm and limited DG convection can be found on the eastern quadrant… Latest ASCAT pass … Continue reading
Photo taken on March 30 near PAKHAR (1201) over the South China Sea…
Please note that PTCC will be “on holiday” from March 30th to April 4th… Alert advisory and general report will not be provided… During this period, no significant tropical cyclone is expected to affect Hong Kong…
Tropical Disturbance 96W is developing slowly over the South China Sea… VIS imagery during daytime revealed a clear low level circulation centre… Sustained wind speed around the centre is around 15 kts… estimated from ASCAT descending pass… Strong northeasterlies help … Continue reading
A Tropical Disturbance (94W) has formed to the east of Mindanao, Philippines… near 6N 130E… The system is currently very weak… No significant development is expected within the next 2 to 3 days…
Tropical Disturbance 93W is situated near 10N 126E… near the central Philippines… The low level circulation centre is expected to be weak… The system will move west to west-northwest into the South China Sea later this week… Although significant development … Continue reading
香港天文台現時生效警告
Feed
Facebook
Twitter