Typhoon Ruby (Hagupit) is expected to bring storm surges in certain critical areas. These storm surges could go up to as high as four meters in Northern Leyte and Eastern Samar, according to the storm surge simulation of the Project Nationwide Operational Assessment Hazards (NOAH).
Project NOAH executive director Mahar Lagmay explained during the National Disaster Risk Reduction Management Council (NDRRMC) briefing on Thursday that there are four categories of storm surge advisories.
- SSA 1: 2 meters storm surge height
- SSA 2: 3 meters storm surge height
- SSA 3: 4 meters storm surge height
- SSA 4: 5 meters storm surge height
Lagmay identified the areas where storm surges will be greatest. Storm surges as high as four meters—the height of a one-storey house—may be expected in Carigara and Babatngon in Northern Leyte; Santa Rita and Basey in Eastern Samar; and Tacloban City.
"Ang lebel ng tubig dagat ay tataas nang apat na metro o katumbas ng isang palapag ng bahay. Noong Yolanda, merong seven meters pero ang highest expected ngayon ay four meters. Yolanda had higher storm surge levels than Ruby," Lagmay said.
These advisories can be found in Project NOAH's website, which is updated every six hours.
Lagmay explained that the site's storm surge hazard map includes a picture of "how far in land the storm surges will go."
To know the SSA in your area, got to http://beta.noah.dost.gov.ph/ and click on the "Storm Surge" button of the site's left-side panel. Then, proceed to the "Storm Surge Advisory" link, which will redirect you to a new set of buttons to identify your location.
To get the storm surge hazard map, identify your region, province, and municipality. Then, choose the expected SSA in your area to see the storm surge's extent.
The website also shows the storm surge hazard map when Typhoon Yolanda (Haiyan) battered Eastern Visayas last year. The Project NOAH executive director noted during the briefing that the storm surges generated during Yolanda were as high as seven meters.
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