Why are Kampung Tersang areas still flooded despite no heavy rain?

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Kampung Tersang Areas Remain Inundated Due to River Overflow

The persistent flooding in Kampung Tersang, Rantau Panjang, is primarily attributed to the overflow of Sungai Lachang, with contributing factors from Sungai Golok. Despite the absence of recent heavy rainfall in the immediate vicinity, water levels in the affected residential areas, such as Mohd Hirwan Rajiuon's home where water reached 0.4 meters, indicate a significant influx of water from these river systems.
Sungai Lachang Overflow as the Primary Cause

The inundation of Kampung Tersang areas began on Friday, reportedly stemming from the overflow of Sungai Lachang. Residents like Mohd Hirwan Rajiuon noted that the water level started to rise on Friday even without substantial local rainfall, suggesting an upstream cause for the river's surge. This overflow directly impacted homes, with ground floors and house compounds becoming submerged.
Contributing Factor from Sungai Golok's High Water Level

Compounding the situation, the water level of Sungai Golok has also been notably high. Mohd Hirwan Rajiuon specifically mentioned the confluence of water flow from both Sungai Lachang and Sungai Golok as the reason for the persistent flooding. As of 8 am on the day of reporting, Sungai Golok's water level had risen to 7.9 meters, exceeding the alert level by 0.9 meters.
Understanding River Overflow and Alert Levels

River overflow and subsequent flooding in low-lying areas are typically a consequence of prolonged rainfall in the river's catchment area, even if the immediate locality experiences dry weather. When a river exceeds its banks, water can spread into surrounding communities. The alert level for a river, such as the 7.0-meter mark for Sungai Golok in this instance, signifies a point at which communities in the vicinity should be aware of potential flooding and take necessary precautions.

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Why are Kampung Tersang areas still flooded despite no heavy rain?

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