Tropical cyclone wind signal (TCWS) no. 1 remains hoisted over Batanes and the northeastern portion of Cagayan (Santa Ana, Gonzaga) including Babuyan Islands.
Isolated to scattered flash flooding and rain-induced landslides are highly likely, especially in areas susceptible to these hazards. Adjacent areas may also experience flooding in the absence of such rainfall occurrence due to surface runoff or swelling of river channels, according to PAGASA.
Gale warning has been issued over the seaboards of TCWS no. 1, so all types of seacraft are not advised to venture into the sea, Perez said.
Strong breeze to near gale conditions and rough to very rough seas will continue over these areas.
Perez said "Emong" may reach the Itbayat area around 7 p.m. or 8 p.m. "It is also possible to develop into a tropical storm within 12 hours, and exit the Philippine Area of Responsibility (PAR) by Tuesday," he said.
"Emong" was last tracked 315 kilometers east of Aparri, Cagayan, moving west northwestward at 40 kph.
The TD packs maximum sustained winds of 55 kph near the center, and gustiness of up to 70 kph.
Meanwhile, Perez said the low pressure area that PAGASA has been monitoring already exited PAR.
"We will still monitor the LPA as this is likely to enhance the southwest monsoon," he said. (PNA)