For those who are worried about flooding in Singapore, PUB has already set up a website where you can monitor the water level. Today, in Straits Times, it mentions that it has added CCTV images on selected location. Go check it out.
Previously, I had blogged about on how to check the water level. However, I noticed that the link now will lead to an error page. My suggestion to PUB. Use a redirect link that will always be the same. On the backend, you are free to alter the link.