Bangkok: The influence of Typhoon Wipha has resulted in heavy rainfall in Nan, with the accumulated precipitation exceeding 200 millimeters. This has led to flooding in numerous areas and a rapid rise in the Nan River.

According to Thai News Agency, Nan Province has been experiencing continuous heavy rain for nearly 20 hours, particularly affecting the northern regions. Accumulated rainfall has exceeded 200 millimeters at nearly 20 measurement stations, causing the Nan River to rise by an average of 30 centimeters per hour. While the river level remains below the banks, persistent rainfall has been recorded throughout the night in areas such as Pua, Bo Kluea, Chaloem Phra Kiat, and Tha Wang Pha.

This morning, 18 stations reported over 200 millimeters of rainfall, with the highest measurement reaching 291 millimeters at the Nam Kon headwaters station in Tambon Phaya Kaew, Amphoe Chiang Klang. Flooding has begun in some low-lying areas, notably in Amphoe Tha Wang Pha, where water has started to overflow, and the level continues to rise. At Station N64 in Ban Pha Kwang, located 30 kilometers north of Nan City, the water level has risen to 7 meters, approaching the critical point of 9 meters. Meanwhile, Nam Tan, which flows through Nan City, has seen its level increase to 5.5 meters, rising more than 1 meter since yesterday at an average of 33 centimeters per hour.

Officials have alerted residents in low-lying areas, municipalities, and economic zones to prepare for potential flooding. In response, urgent measures have been taken, including the placement of large bags at vulnerable points lacking water barriers, to prevent overflow if water levels continue to rise.