Archive | March, 2012

Flooding in Central Malaysia 31 March 2012

The central region of Malaysia was hit by 2 flash flood in the duration of 3 days total up 3 flash flood in 2 weeks time. The area affected was the city of Klang located in the Klang Valley close to the capital of Malaysia, Kuala Lumpur.

The first flash flood hit the Southern Part of the city on 27 of March 2012 and yesterday, flash flood once again hitting the area covering up almost 60% of the city causing 100 thousand citizens in the area affected. The first flash flood hit soon after the 2 hour heavy downpour. It is reported that two of the main sluice allowing river water to flow to the sea was malfunctioning therefore resulting the start of the flash flood on the 27th of March.

Not even 72 hours after the first wave of flood hits, heavy rainfall starts again. This time the rain lasted for 6 hours beginning 1am in the morning local time and ends at 7am in the morning local time. The accumulated rainfall raises from 42mm to 90mm in the duration of 6 hours causing rivers and drain to be filled up with rain water thus resulting flash flood. The area affected in the second wave of flash flood includes a satellite city and industrial area causing millions of losses as the area of Klang city is a very highly populated metropolitan city. Below I attached some of the photo in the flood affected area. These photo are courtesy of a local Malaysian chinese newspaper (Guang Ming Daily).

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At the mean time, please do watch out the updates from my other crew member, Rob, Pat and our new guy in Westernpacific weather dot com, Adonis for the latest information on TS02 Pakhar. Stay safe and have a good day everyone

WestPac Wx SE Asia Weather Casters ~Francis~

Typhoon Pakhar Morning Update | March 31, 2012

Due to a number of sudden changes that occurred overnight, Typhoon Pakhar has lost much of its convection but still remains a typhoon per JTWC. The degradation of the storm could be attributed to numerous factors. Yesterday, I’ve brought the fact that some dry air is being entrained into the system. Furthermore, the wind shear in the region has increased to 10-15 knots. Another reason could be the diurnal minimum last night–which is common in most tropical cyclones.

IR Image from NRLMRY

Nevertheless, we can see in the image above that the typhoon still has much of its structure. The center is still visible on the satellite and cooling cloud tops, especially on the southern periphery, are beginning to return. We still expect Pakhar to retain much of its organization and could even strengthen later today. Much of the forecast, though, remains unchanged. We are still forecasting a landfall tomorrow morning, east of Ho Chi Minh.

I’ll have another update later this afternoon. Please check back frequently for more updates from our numerous contributors.

-WxCaster PAT


Tropical Storm / Typhoon Pakhar Video Update 30-31 MAR 2012

Video by Meteorologist Robert Speta

Pakhar is continuing to strengthen today due to a combination of ripe conditions for development in the South China Sea. The video above is our Tropical Update for today on this storm and its approach

on the South Eastern Vietnam Coast. The storm is forecasted to strengthen but regardless of how strong the winds get at the center of Pakhar the rainfall will be

one of the main threats. The image to the left shows

the current rainfall per hour and up to 50mm in some locations, granted most of this is over water at this time it will be moving over land as we go in to the coming days. For an in-depth read on Pakrah please visit Pat’sAdonis update posted today.

Below is a video Taken on the 29th of  a Tornado ripping through Bacolod City, Negros in Visayas. 

The above video proves to us that Tornadoes do occur in the Philippines, even on a day to day basis the local storms can blow up strong enough conditions to produce Funnel Clouds, the picture to the below is a picture I took in Manila Bay during a regular afternoon. If you look closely a waterspout is visible just offshore.

Latest Warning from JTWC

Typhoon Pakhar Update | March 30, 2012

A quick update adding my own analysis and forecast for Typhoon Pakhar. For other posts regarding the typhoon, you can read the post of our newest member–Adonis!

Anyway, last location of Typhoon Pakhar was around 500km east southeast of Ho Chi Minh City. Maximum sustained winds are around 120kph gusting to 150kph. It is moving westward at 5kph.

VIS Image from NRLMY

The image to the right shows the storm located just east of Vietnam over the South China Sea. We have pinpointed the location of the center on the image. Earlier today, the eye was partially visible but has since been covered by the central dense overcast. Last few frames of the satellite do suggest that the eye maybe trying to reform again. It is pretty well defined on the microwave instruments, however.

Typhoon Pakhar sort of leveled off in terms of intensification this afternoon. It could because of some dry air being entrained into the system. Despite that, the robust outflow, good divergence, and marginal sea surface temperatures should allow Pakhar to intensify more in the next 12-24 hours. It will be very interesting to see the diurnal cycle of the system overnight.

Forecast Graphic, NOT OFFICIAL!

My forecast takes Pakhar into Vietnam by early Sunday morning (Philippine Time). Landfall point is forecast to be within 200km east of Ho Chi Minh. My track is based on the consensus of the latest computer guidance but is positioned north of JTWC and JMA’s forecast tracks. Before landfall, we expect Pakhar to attain a peak intensity of around 150kph sustained which is just below the the Category 2 threshold on the Saffir Simpson Scale.

After landfall, Pakhar should weaken considerably as it moves over Vietnam. It will continue moving northwestward and could dissipate as early as Monday afternoon over the Cambodia/Vietnam border.

My next update will be tomorrow morning. We have a dedicated group of people doing updates frequently so you can be assured of latest info and forecasts. Stay safe!

-WxCaster PAT