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  1. www.pagasa.dost.gov.ph › learning-tools › tropical-cyclonePAGASA

    A Tropical Cyclone Wind Signal (TCWS) is a plain text warning to particular land area that may experience winds of at least strong breeze in strength on the Beaufort Scale (i.e., 39 km/h, 22 kt or higher) within at most 36 hours from the time the signal is put into effect during the passage of a tropical cyclone.

  2. The Flood Forecasting and Warning system for Dam Operation (FFWSDO) aims at the establishment of telemetered flood forecasting warning system that will provide the necessary information for the safe and cost effective operation of the existing five major dams in Luzon and to forewarn the people in the flood plains downstream of these damsites of the impending release of impounded water through ...

  3. bagong.pagasa.dost.gov.ph › index › weatherDaily Weather - PAGASA

    Impacts. Zamboanga Peninsula and Palawan. Cloudy skies with scattered rainshowers and thunderstorms. ITCZ. Possible flash floods or landslides due to moderate to at times heavy rains. Aurora, Quezon, Bicol Region, and Eastern Visayas. Partly cloudy to cloudy skies with isolated rainshowers or thunderstorms. Easterlies.

  4. www.pagasa.dost.gov.ph › products-and-services › numericalPAGASA

    General Weather. Daily Weather Forecast; Weather Outlook Selected Philippine Cities; Asian Cities Weather Forecast; Weather Outlook Selected Tourist Areas; Weekly Weather Outlook; Weather Advisory; Aviation. Airways and Terminal Forecast; Terminal Aerodome Forecast; SIGMET; ICAO Codes; METAR; Marine. High Seas and Offshore Waters Forecast; Gale ...

  5. www.pagasa.dost.gov.ph › learning-tools › weather-instrumentsWeather Instruments - PAGASA

    A mercurial barometer is a simple barometer made by filling a glass tube 32 inches long with mercury and inverting it so that the open end of the tube is below the surface of mercury in a cistern. The height of the mercury column is measured by sliding a vernier attached on a scale. To obtain accurate measurements, corrections are made for ...

  6. www.pagasa.dost.gov.ph › learnings › legendPAGASA

    Non-Telemetered River Basin General Flood Advisory (GFA) A General Flood Advisory is simplified flood bulletin issued for non-telemetered river basins whenever there is a significant amount of rainfall recorded based on past/current observation and the forecast rainfall from the numerical weather prediction models, satellite based information and estimates from radar.

  7. Aug 12, 2018 · This is why it’s a welcome surprise when PAGASA and the Department of Science and Technology (DOST) later announced that they are replacing the “Green” warning signal with “Orange”. Thus the new color-coded rainfall warning signals being used by PAGASA are: Yellow: MONITOR weather conditions. Orange: ALERT for possible danger and ...