MANILA -- The worsening weather conditions in Northern Luzon prompted three airline companies to cancel eight flights as Typhoon Juan (international codename: Megi) heads for a possible landfall on Monday noontime.

Leading budget airline Cebu Pacific said it called off six flights between Manila and Cagayan, Ilocos Norte and Isabela provinces.

Air Philippines Express also cancelled flights, namely: 2P-014 from Manila to Tuguegarao, and 2P-015 from Tuguegarao to Manila.

SeaAir, on the other hand, cancelled flights heading to Basco, Batanes.

Cebu Pacific said affected passengers can rebook their flights without penalties within 30 days of travel, cancel their flights with penalties or reroute their flight without penalties.

Storm signal no. 4 was hoisted over Cagayan, Isabela, Kalinga, Mt. Province and Ifugao as of 5 a.m. Monday.

Signal number 3 was raised in the provinces of Batanes, Calayan, Babuyan group of islands, Apayao, Benguet, Quirino, Nueva Vizcaya and northern Aurora.

As of 9 a.m. Monday, the Philippine Atmospheric Astronomical and Services Administration (Pagasa) said the super typhoon is located at 140 kilometers east of Tuguegarao, Cagayan.

Juan has maintained its strength of 225 kilometers per hour near the center and gustiness of up to 260 kph. It is forecast to move in a west southwest direction at 19 kph. (Virgil Lopez/Sunnex)