What Is Going On With The Weather Pattern In The Pacific?

This photo was posted by the director of Weather Forecast Center of TCWB. It is not a good sign to see this pattern near by Taiwan. I just hope it will bypass Taiwan. 

Picture Source: 鄭明典's FB Page on Aug 19
https://www.facebook.com/mdc.cwb?v=wall

     Typhoon Tembin Prediction by TCWB: 

TCWB doesn't issue any warning on Typhoon Tembin 
yet. It is under observation by TCWB.  

Typhoon Tembin is now Category 4. Picture Source: 陳旭昇's FB Page on Aug 20. https://www.facebook.com/StevenChen66

Picture Source: 鄭明典's FB Page on Aug 20.

Update: 

Another typhoon Bolaven is formed. It is busy in the sky's of the Pacific Ocean.