At least four dams in Luzon recorded a decrease in water levels; however, records from the state weather bureau show that the water level is higher than in recent years.

During PAGASA’s 183rd Climate Forum, Angat Dam in Bulacan logged the biggest water level decrease, lowering from 210.29 meters on 1 April to 205.55 meters on 22 April.

Sonia Serrano, Weather Specialist II of the Hydromet Division, said that the Angat watershed received a recorded basin rainfall of 42.50 millimeters, which she considered a “very minimal rainfall.”

Despite the decrease, the water level of Angat Dam, which supplies water to Metro Manila and nearby provinces, remains high compared to the same period in the last two years.

On 22 April, the water level at Angat Dam was recorded at 205 meters—higher than its level of 191 meters in 2024 and 196 meters in 2023.

Other major dams in Luzon also saw a drop in water levels, including San Roque Dam with a decrease of 0.91 meters, Pantabangan Dam by 2.34 meters, and Magat Dam by 1.44 meters.

According to PAGASA Hydromet’s forecast, Angat Dam’s water level is expected to drop to 195 meters by the end of May, while San Roque and Pantabangan Dams are projected to rise to 268.30 meters and 200.80 meters, respectively.

Magat Dam’s water level is expected to reach the spilling period by the same time.

For April, at least 38 provinces experienced below-normal rainfall levels, while 25 provinces recorded way-below-normal rainfall levels, including the Bicol region, Western Visayas, and Northern Palawan.

For Thursday, 24 April, the highest forecasted heat index is 45°C in Tuguegarao City, Cagayan, while 44°C is expected in Dagupan City, Pangasinan, Iba, Zambales, Aurora, and Cavite City.