Nambak sits in Laos’s mountainous north, where the wet season from May through October brings substantial rainfall to steep, forested terrain, followed by a cooler, drier season from November through April.
On the Nam Ou River in Luang Prabang province, the town monitors the river’s level during the wet season. Because the region’s rivers are short and drop quickly through narrow valleys, heavy monsoon rain can trigger fast-rising streams and landslides with little warning, making radar an important tool for spotting a developing storm before it reaches villages in the valleys below. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map