Typhoon Nika made landfall in Dilasag, Aurora, and is currently moving across northern Luzon, PAGASA reported on Monday.

According to PAGASA's 11 AM weather bulletin, Typhoon Nika is located over San Agustin, Isabela.

It has maximum sustained winds of 130 km/h, gusts of up to 180 km/h, and is moving northwestward at 25 km/h.

Tropical Cyclone Wind Signal (TCWS) No. 4 is in effect in these areas:

• The northernmost portion of Aurora
• the central and southern portions of Isabela
• Kalinga
• Mountain Province
• the northern portion of Ifugao
• the central and southern portions of Abra
• the northern and central portions of Ilocos Sur

TCWS No. 2 is raised in the following areas:

• The northwestern and eastern portions of Cagayan
• the rest of Nueva Vizcaya
• the rest of Quirino
• the rest of Apayao
• the rest of Benguet
• the rest of Ilocos Norte
• La Union
• the northeastern portion of Pangasinan
• the central portion of Aurora
• the northern portion of Nueva Ecija

TCWS No. 1 is in effect in the following areas:

• Babuyan Islands
• the rest of mainland Cagayan
• the rest of Pangasinan
• the rest of Aurora
• the rest of Nueva Ecija
• Bulacan
• Pampanga
• Tarlac
• the northern and central portions of Zambales
• Metro Manila
• Rizal
• the eastern portion of Laguna
• the northern and eastern portions of Quezon including Pollilo Islands

The wind signals alert the public to the general wind threat in an area due to the tropical cyclone. Local winds may be slightly stronger or enhanced in coastal and mountainous areas exposed to the winds.

This tropical cyclone may weaken into a severe tropical storm as it crosses mainland Luzon due to interaction with land.

The next tropical cyclone bulletin will be released at 2:00 PM today.