NORTHERLY SURFACE WINDFLOW has weakened but continues to affect EXTREME NORTHERN LUZON, where partly to mostly cloudy conditions with occasional light rain showers.
Meanwhile, a newly-established MONSOON TROUGH together with the prevailing SOUTHWESTERLY SURFACE WINDFLOW (still slightly enhanced by the departed Typhoon LAN (PAOLO)) will bring mostly cloudy to cloudy (overcast) conditions with isolated to scattered rain showers and thunderstorms across MiMaRoPa, VISAYAS, CENTRAL LUZON, CaLaBaRZon, METRO MANILA, BICOL REGION, and SULU ARCHIPELAGO including KALAYAAN ISLAND GROUP.
THE REST OF THE PHILIPPINES will have partly to mostly cloudy skies with isolated to scattered rain showers and thunderstorms in some areas especially in the afternoon or evening.
**Residents are advised to be on alert for POSSIBLE FLASHFLOODS, LANDSLIDES OR LIGHTNING STRIKES during the occurrence of Severe Thunderstorms.
Important note: In the infrared (IR) satellite image shown above: BLUE areas indicate Clear Skies with a Few Clouds; GREEN = Partly to Mostly Cloudy Skies; YELLOW = Mostly Cloudy to Hazy Skies with Possible Slight-to-Moderate Rainfall; and RED = Thunderstorms with Moderate to Heavy to sometimes Extreme Rainfall.
24-Hour Observed Rainfall Accumulation (8:00 AM October 21 to 8:00 AM October 22, 2017)
Created by: David Michael V. Padua for WeatherPhilippines