Exceptionally high spring from 20.11 feet to 20.37 feet high above the chart datum are expected to occur in Yangon River during the period of October 15th to October 18th 2023. Please be noted that it is not serious level of tide because the highest tide level have reached up to 22 feet above the chart datum in year 2014 and 2015, and this notice is normally issued whenever high tide of Yangon River is expected to reach over 20 feet high above the chart datum in order to take precautionary measures to the publish living near river foreshore area of Yangon City.