Plum Rain Expected to Bring 370 Million Tons to Taiwan's Reservoirs; Wushantou Reservoir Rate Returns to 20%
Heavy rains from the plum rain front are expected to bring approximately 370 million tons of water to Taiwan's major reservoirs, according to the Water Resources Agency (WRA). The Wushantou Reservoir's water level has returned to above 20% for the first time in 15 days, and reservoirs like Nanhua and Zengwen have also seen significant increases, helping to alleviate drought conditions.
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- 📰 Published: June 10, 2026 at 19:37
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(Central News Agency, Taipei, June 10) Continuous heavy rain from the plum rain front has brought significant water to Taiwan. According to statistics from the Water Resources Agency (WRA), this period of rainfall is expected to provide approximately 370 million tons of water to the island's major reservoirs, with about 200 million tons already stored. Notably, the Nanhua, Zengwen, and Wushantou reservoirs are expected to receive a combined inflow of over 130 million tons. The Wushantou Reservoir's water storage rate has returned to above 20% for the first time in 15 days and is expected to continue rising.
According to WRA statistics, from 7:00 AM on June 4 to 3:00 PM on June 10, this rainfall is expected to provide approximately 370 million tons of water to Taiwan's major reservoirs, with about 200 million tons already stored. The estimated total inflow for the Zengwen and Wushantou reservoirs is about 88 million tons, and for the Nanhua Reservoir, about 47.6 million tons.
The WRA explained that during the aforementioned statistical period, the combined storage of the Zengwen and Wushantou reservoirs increased from 53.97 million tons to 97.04 million tons, and the Nanhua Reservoir's storage increased from 17.1 million tons to 35.7 million tons. The trend is expected to continue.
According to the WRA's official website, as of 7:00 AM on June 10, the water storage rate for the Wushantou Reservoir was 25.8%, and for the Nanhua Reservoir, it was 40.1%. As of 6:00 PM on June 10, the Zengwen Reservoir's rate was 16.9%.
The WRA stated that, according to the Southern Region Water Resources Branch's information, the last time the Wushantou Reservoir's storage rate was above 20% was on May 25, when it was 20.8%. The recent instance of it exceeding 20% occurred on June 9, marking an interval of about 15 days.
Regarding whether this rainfall will allow for the scheduled irrigation of the second rice crop, the WRA stated that the irrigation schedule for the second crop will be continuously reviewed in coordination with the Ministry of Agriculture and the management offices of the Irrigation Agency. They will evaluate irrigation conditions, river flow, reservoir storage, and the potential for water replenishment during the upcoming typhoon season as the basis for making irrigation supply decisions. (Editor: Lin Kelun) 1150610
According to WRA statistics, from 7:00 AM on June 4 to 3:00 PM on June 10, this rainfall is expected to provide approximately 370 million tons of water to Taiwan's major reservoirs, with about 200 million tons already stored. The estimated total inflow for the Zengwen and Wushantou reservoirs is about 88 million tons, and for the Nanhua Reservoir, about 47.6 million tons.
The WRA explained that during the aforementioned statistical period, the combined storage of the Zengwen and Wushantou reservoirs increased from 53.97 million tons to 97.04 million tons, and the Nanhua Reservoir's storage increased from 17.1 million tons to 35.7 million tons. The trend is expected to continue.
According to the WRA's official website, as of 7:00 AM on June 10, the water storage rate for the Wushantou Reservoir was 25.8%, and for the Nanhua Reservoir, it was 40.1%. As of 6:00 PM on June 10, the Zengwen Reservoir's rate was 16.9%.
The WRA stated that, according to the Southern Region Water Resources Branch's information, the last time the Wushantou Reservoir's storage rate was above 20% was on May 25, when it was 20.8%. The recent instance of it exceeding 20% occurred on June 9, marking an interval of about 15 days.
Regarding whether this rainfall will allow for the scheduled irrigation of the second rice crop, the WRA stated that the irrigation schedule for the second crop will be continuously reviewed in coordination with the Ministry of Agriculture and the management offices of the Irrigation Agency. They will evaluate irrigation conditions, river flow, reservoir storage, and the potential for water replenishment during the upcoming typhoon season as the basis for making irrigation supply decisions. (Editor: Lin Kelun) 1150610
FAQ
How much water did Taiwan's reservoirs gain from this plum rain?
The WRA estimates about 370 million tons of water, with 200 million tons already stored.
What is the current water storage rate of Wushantou Reservoir?
As of June 10, it was 25.8%, exceeding 20% for the first time in 15 days.
Will this rain be enough for the second rice crop irrigation?
The WRA will continue to evaluate conditions, including future rainfall and typhoon season, before making a decision.