Typhoon "Jenny" maintained her strength as she moved north-northwestward over the Philippine Sea, the state weather bureau said Tuesday.

In its latest weather bulletin, the Philippine Atmospheric, Geophysical, and Astronomical Services Administration, said "Jenny" will continue to enhance the Southwest Monsoon or habagat, bringing significant rains over the western portions of Central Luzon, Southern Luzon and Visayas in the next three days.

PAGASA said the enhancement of the Southwest Monsoon will bring gusty conditions for the next three days over areas not under any Wind Signal, especially in coastal and upland/mountainous areas exposed to winds including Bataan, the southern portion of Aurora, Metro Manila, Calabarzon, Romblon, and most of Bicol Region.

Gale Warning is hoisted in the coastal waters along the seaboards of Northern Luzon.

The typhoon will also bring moderate to rough seas (1.5 to 3.5 m) over the coastal waters of northern Aurora.

PAGASA advised mariners of motor bancas and similarly-sized vessels to take precautionary measures while venturing out to sea.

If possible, navigating in these conditions, especially if inexperienced or operating ill-equipped vessels, shall be avoided.

Typhoon "Jenny" is forecast to move northwestward or west-northwestward until tomorrow before turning generally westward thereafter.

On the track forecast, "Jenny" will make landfall over the southern portion of Taiwan between late Wednesday evening, or Thursday morning, then exit the Philippine Area of Responsibility between Thursday morning and afternoon.