The Asian archipelago, whipped by about 20 typhoons and storms each year, is now in the grips of the "El Nino" phenomenon that can make storms "stronger" and more "erratic", weather service chief Vicente Malano said.
"El Nino may cause the behaviour of tropical cyclones to become erratic, affecting (their) tracks and intensity," he said in an advisory, adding that the same number of storms are expected.
"The tropical cyclone tracks are expected to shift northward and (their) intensity could become stronger," Malano said.
Super Typhoon Haiyan, the strongest ever to hit land, left more than 7,350 people dead or missing in central regions of the Philippines in November 2013 as it dumped tsunami-like waves on coastlines, wiping out entire towns....
2013's Typhoon Haiyan viewed from a Navy research satellite