TROPICAL depression Ambo is predicted to strengthen into a tropical storm before making landfall Thursday afternoon or early evening, weather bureau PAGASA reported on Tuesday. “It is possible that it will intensify into a tropical storm before landfall,” Senior Weather Specialist Chris Perez said in a streamed report. “Gail warning signals may be raised later today… initially over Eastern Visayas and some parts of Mindanao,” he added. As of 3 p.m. Tuesday, the typhoon was almost stationary at 410 kilometers (km) east of Surigao City, maintaining its strength of 55 km per hour winds and gustiness of up to 70 km/h. The typhoon is expected to move up along the eastern seaboard, and will be east of Sorsogon on Thursday, and west-northwest of Alabat, Quezon by Friday. By Saturday, Ambo is forecasted to be 145 km west-northwest of Laoag City, Ilocos Norte, and 185 km north-northwest of Basco, Batanes come Sunday.