Tropical depression "Jolina" may make landfall as a tropical storm in Isabela on Thursday, Sept. 9, said the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).

As of 11 a.m., Monday, Sept. 6, tropical depression Jolina was at 205 kilometers east-southeast of Guiuan, Eastern Samar, or 230 km east-northeast of Surigao City, Surigao del Norte.

PAGASA said Jolina has slightly intensified and is seen to become a tropical storm by Wednesday, Sept. 8, prior to its expected landfall over Isabela by Thursday.

It remains a tropical depression on Monday with maximum sustained winds of 55 kilometers per hour (kph) near the center and gustiness of up to 70 kph.

Due to the anticipated impact of this weather disturbance, tropical cyclone wind signal number 1 has been raised over Sorsogon, Northern Samar, Samar, Eastern Samar, Dinagat Islands, Siargao Islands, and Bucas Grande Islands.

"Strong winds with occasional gusts will be experienced in areas where tropical cyclone wind signal number 1 is in effect. Given that Jolina may likely intensify into a tropical storm before landfall, the highest possible tropical cyclone wind signal that will be raised throughout its passage will be Signal No. 2," said PAGASA senior weather specialist Chris Perez.

Jolina is also expected to bring moderate to heavy rains over Eastern Samar, Dinagat Islands, and Surigao del Norte including Siargao and Bucas Grande Islands in the next 24 hours.

Light to moderate with at times heavy rains may also prevail over northern Cebu, Bohol, Camiguin, Biliran, Leyte, Northern Samar, Samar, and Southern Leyte.

"Under these conditions, isolated to scattered flash flooding and rain-induced landslides are possible especially in areas that are highly or very highly susceptible to these hazards as identified in hazard maps," PAGASA warned.

Perez said Jolina will likely leave the Philippine area of responsibility (PAR) by Friday, Sept. 10.

PAGASA however advised the public to continue to monitor possible changes in the forecast track in the succeeding bulletins.

PAGASA also continues to monitor a tropical depression east of Southern Luzon or outside the PAR.

The tropical depression will likely enter the PAR by Wednesday and will be given a local name "Kiko."

Perez said this weather disturbance is unlikely to directly affect the weather condition in the Philippines as it may move towards the southern islands of Japan.

However, it may trigger moderate to rough seas over the northern and eastern seaboards of northern Luzon on Friday when it is likely to become a severe tropical storm.

As of Monday, Perez said that there is no direct interaction between the two cyclones being monitored by PAGASA.