The Met Dept. has forecast that heavy rain will persist till this evening after which the rainfall is expected to gradually decrease.
According to the Department, the highest rainfall of 400 mm was recorded from Colombo. It was the worst affected area, after 18 years. It said that by this afternoon, the situation will improve but certain parts of the island could experience heavy showers. Fairly widespread thundershowers are expected in the afternoon. By this evening thundershowers of the inter-monsoon period may be experienced. The Met Dept says the prevailing weather conditions are due to the influence of the convergence between the winds of the northern hemisphere and the southern hemisphere within the inter-tropical convergence zone. It is the southern half of the island that will be most affected by these conditions. The inter-monsoon period with evening thundershowers is expected to persist till mid December. The highest rainfall recorded thus far was in 1992 at 493 mm. Ratmalana recorded 274 mm. while Kurunegala it was 88 mm. Ratnapura recorded 67 mm and Galle 40 mm of rain.