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Upstream signals

No useful skill: flagged months match Chiang Saen rises about as often as a random month would. Most wet-season rises are rain, and a monthly satellite series cannot time a release to the day. Treat alerts as 'something changed upstream', not a forecast.

• 2026-09 Nuozhadu: MODERATE, water area -0.9 km² (usual 33.6 km²)
• 2026-09 Manwan: MODERATE, water area -1.0 km² (usual 0.5 km²)
• 2026-05 Jinghong: MODERATE, water area -3.3 km² (usual 0.3 km²)
• 2026-05 Dachaoshan: MODERATE, water area -5.1 km² (usual 0.1 km²)
• 2026-03 Jinghong: HIGH, water area -2.9 km² (usual 1.6 km²)
• 2026-03 Xiaowan: HIGH, water area -29.2 km² (usual -3.2 km²)
• 2025-07 Jinghong: MODERATE, water area -3.2 km² (usual 1.7 km²)
• 2025-07 Nuozhadu: MODERATE, water area -26.9 km² (usual 14.4 km²)
• 2025-07 Dachaoshan: MODERATE, water area -4.0 km² (usual 0.8 km²)
• 2025-04 Nuozhadu: MODERATE, water area -38.3 km² (usual -14.7 km²)
• 2025-03 Dachaoshan: MODERATE, water area -2.1 km² (usual 1.0 km²)
• 2025-03 Manwan: MODERATE, water area -0.7 km² (usual 0.6 km²)
• 2024-10 Nuozhadu: HIGH, water area -34.5 km² (usual 16.4 km²)
• 2024-10 Dachaoshan: HIGH, water area -3.1 km² (usual 0.0 km²)
• 2024-10 Manwan: HIGH, water area -2.5 km² (usual -0.1 km²)

Satellite estimates and MRC public gauge data, not official warnings. Follow local authority notices.