The heavy rain brought by the several tropical cyclones over the past month is now coming down in the rivers of S.E. Asia. The high tide hasn't yet arrived Bangkok but the city is in full alert for this big challenge. Note that even in Siam Square (photo 2), the precaution is there. The last photo shows how high the river tide is. See the water level is already 1 foot higher on the riverside. These were taken at the BTS Saphan Tashin.