The flooding has started, so slowly it was hardly noticed at first. The canal (khlong) didn’t overflow; the water started coming from underground.
The water flow though Khlong Phrakhanong is determined largely by ocean tides. During a high tide, water backs up and the level rises, usually to a slightly more than a meter below the top of the wall, or almost at ground level. During low tide, it drops more than a meter. A nearby government sluice gate opens and closes at times I haven’t been able to predict, to regulate the flow somewhat
The khlong walls are concrete, about 20 centimeters thick and extending above ground level about a meter. On October 30, the high level was about 10 centimeters higher than usual. The surrounding ground is completely saturated, so when the weight of all that extra water pushed against the walls and canal bed, water essentially flowed up, and out. There’s a private service driveway along the canal, and it has a long crack. Yesterday, water began bubbling out at high tide, partially flooding the garage entrance (now blocked by a 2 meter flood wall).
There’s another leak somewhere near the bridge on the far bank, creating a small pond. And several nearby sois (small streets) are also flooding. The water comes at high tide, and mostly recedes at low tide.
What happens next is anyone’s guess. The above chart shows the high tides getting smaller as the Sun moves out of syzygy, the alignment of Sun, Moon and Earth in a line. That’s good news, but most of the flood water is still upcountry. So far, the Government has kept Bangkok relatively dry by flooding everyone to the east and west. Angry residents are tearing down flood walls, and there hasn’t been much action to stop them.
I’m still waiting. I’ve stored 30 liters of drinking water, so I should be fine, no matter what happens.
I also have emergency power, thanks to my music studio. I’ve long had problems with the power here: blackouts, brownouts, frequency and voltage fluctuations, harmonics and transient spikes, etc. So I invested in a Liebert Uninterruptible Power Supply (UPS). It provides enough emergency power to run my entire studio (including powered speakers) for 30-45 minutes, or the Internet router and laptop for several days. Thus I should be able to stay online even when the building’s power is cut.



