BY SUNDAY (SEPTEMBER 15), "MARILYN" IS EXPECTED TO BE ALMOST OVER THE NORTHERN BOUNDARY OF THE PHILIPPINE AREA OF RESPONSIBILITY (PAR) WHILE THE AFOREMENTIONED LPA IS EXPECTED TO REMAIN ALMOST STATIONARY OVER THE WEST PHILIPPINE SEA. THESE TWO WEATHER SYSTEMS WILL ENHANCE THE "HABAGAT" OVER THE VISAYAS-SOUTHERN LUZON AREA. CLOUDY SKIES AND SCATTERED RAINSHOWERS AND THUNDERSTORM WILL BE EXPERIENCED OVER MIMAROPA, CALABAZON AND VISAYAS WHILE THE REST OF THE COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

BY MONDAY (SEPTEMBER 16), "MARILYN" IS EXPECTED TO BE OUTSIDE THE NORTHERN BOUNDARY OF THE PAR WHILE THE AFOREMENTIONED LPA OVER THE WEST PHILIPPINE SEA IS EXPECTED TO DISSIPATE. THE "HABAGAT" WILL CONTINUE TO AFFECT THE VISAYAS-SOUTHERN LUZON AREA. OCCASIONAL RAINS WILL BE EXPERIENCED OVER NORTHEN PALAWAN AND MINDORO PROVINCES WHILE CLOUDY SKIES AND SCATTERED RAINSHOWERS AND THUNDERSTORMS WILL PREVAIL OVER CALABARZON, BICOL REGION, WESTERN VISAYAS, SAMAR PROVINCES AND THE REST OF MIMAROPA. METRO MANILA AND THE REST OF THE COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

BY TUESDAY AND WEDNESDAY (SEPTEMBER 17 & 18), THE "HABAGAT" WILL BRING OCCASIONAL RAINS OVER NORTHEN PALAWAN, MINDORO PROVINCES, AKLAN AND ANTIQUE. CLOUDY SKIES WITH SCATTERED RAINSHOWERS AND THUNDERSTORMS WILL PREVAIL OVER CALABARZON, BICOL REGION, SAMAR PROVINCES AND REST OF MIMAROPA AND OF WESTERN VISAYAS. THE REST OF THE COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

BY THURSDAY (SEPTEMBER 19), CLOUDY SKIES WITH SCATTERED RAINSHOWERS AND THUNDERSTORMS WILL BE EXPERIENCED OVER MIMAROPA, CALABARZON, BICOL REGION AND VISAYAS DUE TO THE "HABAGAT" WHILE METRO MANILA AND THE REST OF COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

BY FRIDAY (SEPTEMBER 20), CENTRAL LUZON, METRO MANILA, MIMAROPA, CALABAROZN, AKLAN, ANTIQUE AND THE SAMAR PROVINCES WILL HAVE CLOUDY SKIES WITH SCATTERED RAINSHOWERS AND THUNDERSTORMS DUE TO THE "HABAGAT". THE REST OF COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

ROUGH TO VERY ROUGH SEA CONDITIONS ARE EXPECTED OVER THE SEABOARDS OF SOUTHERN LUZON, VISAYAS AND MINDANAO THROUGHOUT THE OUTLOOK PERIOD. MOREOVER, PAGASA IS NOT RULING OUT THE POSSIBILITY OF "MARILYN" RE-ENTERING THE PHILIPPINE AREA OF RESPONSIBILITY (PAR) ON TUESDAY.

THIS WEATHER OUTLOOK WILL BE UPDATED IF SIGNIFICANT CHANGES IN THE WEATHER CONDITION OCCUR.