Archive | December 11, 2011

A look back at Cyclone Yasi

A look back at Cyclone Yasi, this video gives you a great feel of the development of and intensity of this storm.

For more videos people visit Chun Fu Wu’s youtube page


Invest 94W, TCFA Cancelled 11 DEC

The Tropical Cyclone Formation Alert issued by the Joint Typhoon Warning Center yesterday was allowed to expire this morning, hence Invest 94W was never upgraded into a depression by the said agency. We should note, however, that the JMA has, and still is classifying 94W as a Tropical Depression although not releasing special TC Warnings.

As predicted, the strong wind shear in the South China Sea is taking its toll on 94W’s development. Its center (located approximately 400km west of Southern Palawan, around Spratly Islands) has become fully exposed today with weaker winds than yesterday as seen from an ASCAT pass. However, the most recent satellite images shows a new band of deep convection displaced southwest of the center which might suggest improvements with regard to 94W’s development. With that said, latest models are still not showing development for 94W. Almost all of the computer models keep it as a weak tropical wave that could bring rain showers once it gets into Southern Vietnam. Wind shear across South China Sea remains very strong and that is significantly inhibiting 94W’s chances of becoming a cyclone. Still, we’ll continue updating you with this system.

In this satellite image below (taken from NRLMRY), you can make out the circulation of 94W located west of Palawan in the Philippines. You can also see the convective clouds (brighter white) situated very near the center.

-WxCaster PAT