Frequently Asked Questions — WeatherAlertPH

About Typhoons in the Philippines

What is a typhoon?

A typhoon is a tropical cyclone that forms in the western Pacific Ocean. The Philippines experiences an average of 20 typhoons per year, with the peak season running from June to November. Typhoons are classified by PAGASA using a storm signal system from Signal 1 (minimal threat) to Signal 5 (catastrophic).

What is the Philippine Area of Responsibility (PAR)?

PAR is the area of the western Pacific Ocean where PAGASA monitors and names tropical cyclones that may affect the Philippines. It covers approximately 1,790 km from east to west and 1,500 km from north to south. Tropical cyclones are assigned Filipino names when they enter PAR.

What is storm surge?

Storm surge is an abnormal rise in sea level driven by a typhoon's winds and low atmospheric pressure. It is the deadliest typhoon hazard in the Philippines. The 2013 Typhoon Haiyan (Yolanda) produced a storm surge of up to 7 metres in Tacloban City. Even relatively weak typhoons can produce dangerous storm surges in low-lying coastal areas.

PAGASA Storm Signal Levels

What do PAGASA storm signal levels mean?

Using WeatherAlertPH

How do I check the weather for my city?

Enter your city or municipality name in the search bar on the homepage, or browse directly to /weather/your-city-name (e.g. /weather/manila, /weather/cebu-city).

How often is the data updated?

Weather alert data is refreshed every 30 minutes. Forecast data is updated every hour. Radar imagery is updated in near real-time from RainViewer (approximately every 10 minutes).

Is WeatherAlertPH an official government service?

No. WeatherAlertPH is an independent service and is not affiliated with PAGASA, NDRRMC, or any government agency. For official warnings and evacuation orders, always consult PAGASA and your local government unit (LGU).

Safety and Emergency Information

Where can I find official evacuation information?

For official evacuation orders and emergency information, contact your local government unit (LGU) or consult NDRRMC and PAGASA. The national emergency hotline is 911.

What should I include in a typhoon emergency kit?

A basic 72-hour emergency kit should include: at least 3 litres of water per person per day, non-perishable food, prescription medicines, a battery-powered or hand-crank radio, a torch with extra batteries, a first aid kit, copies of important documents in a waterproof bag, cash, and a fully charged power bank.

Frequently Asked Questions — WeatherAlertPH

About Typhoons in the Philippines

What is a typhoon?

A typhoon is a tropical cyclone that forms in the western Pacific Ocean. The Philippines experiences an average of 20 typhoons per year, with the peak season running from June to November. Typhoons are classified by PAGASA using a storm signal system from Signal 1 (minimal threat) to Signal 5 (catastrophic).

What is the Philippine Area of Responsibility (PAR)?

PAR is the area of the western Pacific Ocean where PAGASA monitors and names tropical cyclones that may affect the Philippines. It covers approximately 1,790 km from east to west and 1,500 km from north to south. Tropical cyclones are assigned Filipino names when they enter PAR.

What is storm surge?

Storm surge is an abnormal rise in sea level driven by a typhoon's winds and low atmospheric pressure. It is the deadliest typhoon hazard in the Philippines. The 2013 Typhoon Haiyan (Yolanda) produced a storm surge of up to 7 metres in Tacloban City. Even relatively weak typhoons can produce dangerous storm surges in low-lying coastal areas.

PAGASA Storm Signal Levels

What do PAGASA storm signal levels mean?

Using WeatherAlertPH

How do I check the weather for my city?

Enter your city or municipality name in the search bar on the homepage, or browse directly to /weather/your-city-name (e.g. /weather/manila, /weather/cebu-city).

How often is the data updated?

Weather alert data is refreshed every 30 minutes. Forecast data is updated every hour. Radar imagery is updated in near real-time from RainViewer (approximately every 10 minutes).

Is WeatherAlertPH an official government service?

No. WeatherAlertPH is an independent service and is not affiliated with PAGASA, NDRRMC, or any government agency. For official warnings and evacuation orders, always consult PAGASA and your local government unit (LGU).

Safety and Emergency Information

Where can I find official evacuation information?

For official evacuation orders and emergency information, contact your local government unit (LGU) or consult NDRRMC and PAGASA. The national emergency hotline is 911.

What should I include in a typhoon emergency kit?

A basic 72-hour emergency kit should include: at least 3 litres of water per person per day, non-perishable food, prescription medicines, a battery-powered or hand-crank radio, a torch with extra batteries, a first aid kit, copies of important documents in a waterproof bag, cash, and a fully charged power bank.