For alerts, check PUB Call Centre Hotline 1800-2846600   PUB website (www.pub.gov.sg): There is a map showing the water level in selected canals and drains. This water level, shown in percentage, is updated every 10 minutes.   NEA (www.nea.gov.sg) You can find weather reports here. A mobile weather service call Weather@SG is available too. You can also call the weather forecast hotline at 6542 7788.             This information is taken from The New Paper June 7, 2011.