Taipei, Aug. 9 (CNA) Taiwan will experience its second annual period of exceptionally high astronomical tides from Tuesday to Saturday, increasing the risk of localized flooding and seawater inundation in low-lying coastal areas, the Central Weather Administration (CWA) said Sunday. The year's highest tides, commonly referred to in Taiwan as the "annual high tides," are driven by astronomical factors and occur during these periods, the CWA said. Residents and businesses in low-lying coastal areas were urged to take precautions against seawater inundation and localized flooding during high tide and ensure drainage systems remain clear. While annual high tides are a natural astronomical phenomenon, the CWA warned that if they coincide with a typhoon or other strong wind systems, storm surges can rapidly raise coastal water levels. It urged the public to avoid coastal and low-lying areas during such weather conditions.