TODAY TO TOMORROW (20-21 DECEMBER), CLOUDY SKIES WITH SCATTERED RAINS AND THUNDERSTORMS WILL BE EXPERIENCED OVER BICOL REGION, QUEZON, OCCIDENTAL MINDORO, ORIENTAL MINDORO, MARINDUQUE, AND ROMBLON DUE TO SHEAR LINE. VISAYAS, MINDANAO, AND PALAWAN WILL HAVE THE SAME WEATHER CONDITION DUE TO THE LOW PRESSURE AREA (LPA) AND ITS TROUGH. THE NORTHEAST (NE) MONSOON WILL BRING CLOUDY SKIES WITH LIGHT RAINS OVER CAGAYAN VALLEY, CORDILLERA ADMINISTRATIVE REGION (CAR) AND AURORA WHILE PARTLY CLOUDY TO AT TIMES CLOUDY SKIES WITH ISOLATED LIGHT RAINS OVER METRO MANILA AND THE REST OF LUZON.

ON SUNDAY UNTIL MONDAY (22-23 DECEMBER), PALAWAN AND ZAMBOANGA PENINSULA WILL CONTINUE TO BE CLOUDY WITH SCATTERED RAINS AND THUNDERSTORMS DUE TO THE LPA AND ITS TROUGH WHILE THE SHEAR LINE WILL ALSO BRING SIMILAR WEATHER CONDITION OVER METRO MANILA, BICOL REGION, CALABARZON, EASTERN VISAYAS, AND THE REST OF MIMAROPA. THE NE MONSOON WILL CAUSE CLOUDY SKIES WITH LIGHT RAINS OVER CAGAYAN VALLEY, CORDILLERA ADMINISTRATIVE REGION, AND AURORA WHILE PARTLY CLOUDY TO AT TIMES CLOUDY SKIES WITH ISOLATED LIGHT RAINS OVER THE REST OF LUZON. THE REST OF THE COUNTRY WILL EXPERIENCE PARTLY CLOUDY TO CLOUDY SKIES WITH CHANCES OF LOCALIZED RAINSHOWERS OR THUNDERSTORMS.

ON TUESDAY (24 DECEMBER), PALAWAN WILL CONTINUE TO BE CLOUDY WITH SCATTERED RAINS AND THUNDERSTORMS DUE TO THE TROUGH OF THE LPA WHILE THE SHEAR LINE WILL BRING SIMILAR WEATHER CONDITION OVER BICOL REGION, EASTERN VISAYAS, CALABARZON, AND THE REST OF MIMAROPA. THE NE MONSOON WILL CAUSE CLOUDY SKIES WITH LIGHT RAINS OVER METRO MANILA, CAGAYAN VALLEY, CAR, AURORA, NUEVA ECIJA, AND BULACAN WHILE PARTLY CLOUDY TO AT TIMES CLOUDY SKIES WITH ISOLATED LIGHT RAINS OVER THE REST OF LUZON. THE REST OF THE ARCHIPELAGO MAY EXPECT PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

ON WEDNESDAY (25 DECEMBER),THE SHEAR LINE WILL STILL BRING CLOUDY SKIES WITH SCATTERED RAINS AND ISOLATED THUNDERSTORMS OVER BICOL REGION, MIMAROPA, ZAMBOANGA PENINSULA, AND VISAYAS. THE NE MONSOON WILL BRING MOSTLY CLOUDY SKIES WITH LIGHT RAINS OVER CAGAYAN VALLEY, AURORA, QUEZON, AND RIZAL WHILE PARTLY CLOUDY TO AT TIMES CLOUDY SKIES WITH ISOLATED LIGHT RAINS OVER METRO MANILA AND THE REST OF LUZON. THE REST OF THE COUNTRY WILL HAVE PARTLY CLOUDY TO CLOUDY SKIES APART FROM LOCALIZED RAINSHOWERS OR THUNDERSTORMS.

ON THURSDAY TO FRIDAY (26-27 DECEMBER), METRO MANILA, CALABARZON, CENTRAL LUZON, ORIENTAL MINDORO, MARINDUQUE, ROMBLON, CAMARINES NORTE, CAMARINES SUR, AND CATANDUANES MAY GENERALLY HAVE CLOUDY SKIES WITH SCATTERED RAINS AND THUNDERSTORMS DUE TO SHEAR LINE. PALAWAN AND MINDANAO MAY ALSO EXPERIENCE MOSTLY CLOUDY SKIES WITH SCATTERED RAINS AND THUNDERTORMS DUE TO THE INTERTROPICAL CONVERGENCE ZONE (ITCZ). THE NE MONSOON MAY BRING MOSTLY CLOUDY SKIES WITH LIGHT RAINS OVER CAGAYAN VALLEY AND CAR WHILE PARTLY CLOUDY TO CLOUDY SKIES WITH ISOLATED LIGHT RAINS OVER METRO MANILA AND OCCIDENTAL MINDORO. THE REST OF THE COUNTRY WILL EXPERIENCE PARTLY CLOUDY TO CLOUDY SKIES WITH THE POSSIBILITY OF ISOLATED RAINSHOWERS OR THUNDERSTORMS.

THIS WEATHER OUTLOOK WILL BE UPDATED SHOULD THERE BE SIGNIFICANT CHANGES IN THE FORECAST SCENARIO THROUGH THE ISSUANCE OF 24-HOUR PUBLIC WEATHER FORECASTS AND WEATHER ADVISORIES.