Exactly (almost) one year after the infamous Orchard Road flood last year, the city state is again hit with another flood on 4 Jun 2011. This time the worst hit areas were Tanglin Mall (far bottom) and Bukit Timah Road (bottom).
[Updated 27 Dec 2011] there is a third flooding since the last two rare floodings, and the second one this year abeit a less serious one, in Singapore prompting a letter writer implying the official's decalaration of "once in 50 years" event a red herring: "Call it what it is: Flooding".
[Updated 21Jan2012] A heavy thunderstorm yesterday afternoon caused flash floods in several areas across the island including Taglin Road and the basement of Raffles City shopping centre. (Source)