The year 2554 (2011) January to October there is a total disaster area, or 90, 56657 770.01 Rai 652, 432, 057.77. Square kilometers. The province has flooded most area: Nakhon SI thammarat province. Phra Nakhon SI Ayutthaya Suphanburi and Phichit, Phitsanulok, respectively, by each of these provinces has exceeded 1 million Rai of flooded areas.