Between December 16-17, 2011, Tropical Storm Sendong made landfall and crossed Northern Mindanao. Cagayan de Oro City was hit directly by the storm, with the eye of Sendong passing at approximately 12MN on December 16. About 180mm of rainfall was recorded in the PAGASA Lumbia Station, according to PAGASA. This page summarizes a report released by the Manila Observatory on the wind, track, and rain of Sendong, which sets the statistics against historical data.

Manila Observatory Davao Station seismogram readings show the Primary waves of M8.9 earthquake in Honshu, Japan approximately 05:53:30.00 GMT. Records show around 2 hours of continuous movement.

This interactive map will show the MAXIMUM flood height during the onslaught of typhoon Ondoy. Please help us in gathering data by entering information the maximun flood height you have observed in your area. When completed, this can serve as a guide for identifying future floods in Metro Manila and can validate flood simulations.

PM Concentrations at the Manila Observatory. Figures show monthly boxplots of preliminary 24-Hr PM2.5 concentrations collected from the Manila Observatory, Ateneo de Manila University Campus, Loyola Heights Quezon City.