The centre, seemingly caught off guard by the unseasonal early-morning rainfall, issued a statement explaining its unpreparedness.
Specifically, it said it was seeking funds to build a pumping well on Sukhumvit Road at Soi Bearing and was currently constructing a flood tunnel from the Saen Saeb Canal to Soi Lard Parod 130.
The centre said the heaviest rainfall Wednesday was in Nong Chok district, measured at 133 millimetres, followed by Bang Na with 109.5mm and Minburi with 104mm.