Overall Green alert Tropical Cyclone for SANBA-18
in Philippines, Palau
Impact Single TC
Impact all weather systems in the area


Tropical Cyclone SANBA-18 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Philippines, Palau
Exposed population No people in Category 1 or higher
Maximum wind speed 139 km/h
Maximum storm surge 0.4 m (13 Feb 07:00 UTC)
Vulnerability Medium (Philippines)


GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
GDACS Current 93 km/h n.a. n.a. 0.5
GDACS Overall 139 km/h 0.4 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)


93 km/h Current Max.

Up to 34.9 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Green 1 08 Feb 2018 18:00 93 41.5 million No people Palau, Philippines
Green 2 09 Feb 2018 00:00 83 48.5 million No people Palau, Philippines
Green 3 09 Feb 2018 06:00 93 34.9 million No people Palau, Philippines

Bulletin Timeline

Alert Date (UTC) Category Max winds
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
1 08 Feb 2018 18:00 Tropical depression 37 no people no people 10.8, 147.8
2 09 Feb 2018 00:00 Tropical depression 46 no people no people 11, 147.3
3 09 Feb 2018 06:00 Tropical depression 56 no people no people 10.5, 146
3 09 Feb 2018 18:00 Tropical storm 65 no people no people 9.6, 143.6
3 10 Feb 2018 06:00 Tropical storm 74 9400 people no people 8.8, 140.8
3 10 Feb 2018 18:00 Tropical storm 83 20000 people no people 8.3, 137.7 Palau
3 11 Feb 2018 06:00 Tropical storm 93 20000 people no people 8.4, 134.5 Palau
3 12 Feb 2018 06:00 Tropical storm 83 32.9 million people no people 9.5, 128.2 Philippines
3 13 Feb 2018 06:00 Tropical storm 74 31.7 million people no people 9.6, 123.7 Philippines
3 14 Feb 2018 06:00 Tropical storm 83 no people no people 9.5, 119.1 Philippines
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places




Region Province Country Population
Palau Palau 16000 people
Southern Mindanao Philippines 4.4 million people
Northern Mindanao Philippines 3.5 million people
Eastern Visayas Philippines 3 million people
Central Mindanao Philippines 3.1 million people
Central Visayas Philippines 4.5 million people
Bicol Philippines 3.9 million people
Western Visayas Philippines 5.3 million people
Western Mindanao Philippines 3.1 million people
Southern Tagalog Philippines 8.2 million people

Populated places

Name Region Province Country City class Population
Melekeok Palau Capital <1000 people
Koror Palau Palau City 11000 people
Guiuan Eastern Visayas Philippines City 11000 people
Tagum Southern Mindanao Philippines City 170000 people
Butuan Northern Mindanao Philippines City 250000 people
Dulag Eastern Visayas Philippines City 9900 people
Tanauan Eastern Visayas Philippines City 16000 people
Tacloban Tacloban City Philippines City 180000 people
Palo Eastern Visayas Philippines City 17000 people
Malaybalay Northern Mindanao Philippines City 61000 people
Burauen Eastern Visayas Philippines City 14000 people
Babatñgon Leyte Philippines City -
Barugo Leyte Philippines City 6500 people
Carigara Leyte Philippines City 17000 people
Mambajao Northern Mindanao Philippines City 9900 people
Ormoc Eastern Visayas Philippines City 90000 people
Cagayan de Oro Northern Mindanao Philippines City -
Marawi Central Mindanao Philippines City 140000 people
Iligan Central Mindanao Philippines City 260000 people
Danao Danao City Philippines City 69000 people
Bogo Central Visayas Philippines City 23000 people
Cebu Central Visayas Philippines City 780000 people
Oroquieta Northern Mindanao Philippines City 38000 people
Argao Central Visayas Philippines City 6000 people
Fabrica Western Visayas Philippines City -
Cadiz Western Visayas Philippines City 120000 people
Tambulig Western Mindanao Philippines City 7300 people
Calamba Central Visayas Philippines City 2600 people
Dumaguete Central Visayas Philippines City 110000 people
Dipolog Western Mindanao Philippines City 93000 people
Pagadian Western Mindanao Philippines City 130000 people
Zamboanguita Negros Oriental Philippines City 6100 people
Tanjay Central Visayas Philippines City 39000 people
Silay Western Visayas Philippines City 82000 people
Talisay Western Visayas Philippines City 76000 people
Bacolod Western Visayas Philippines City 440000 people
Kabankalan Western Visayas Philippines City 130000 people
Roxas Western Visayas Philippines City 100000 people
Iloilo Iloilo City Philippines City 380000 people
Kalibo Western Visayas Philippines City 56000 people
San Jose Western Visayas Philippines City 22000 people
Puerto Princesa Philippines City 150000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Yap International YAP 28 Civ. Paved Yes 6000
Airai ROR 54 Civ. Paved Yes 7200
Baganga BNQ unknown 0
Bislig BPH 3 Civ. Paved No 3900
Tandag TDG 5 Civ. Paved No 4400
Siargao 3 0
Guiuan 2 Civ. Paved No 7000
Nonoc 4 0
Borongan 2 0
Surigao SUG 6 Civ. Paved No 5000
Butuan BXU 43 Civ. Paved No 6000
Daniel Z Romualdez TAC 2 Civ. Paved Yes 7000
Malaybalay 625 Civ. Unpaved No 3100
Maasin 100 0
Camiguin CGM 5 Civ. Paved No 4200
Ormoc OMC 25 Civ. Paved No 3900
Philphos 5 0
Ubay 8 0
Lumbia CGY 186 Civ. Paved Yes 7800
Biliran Natl 89 0
Maria Cristina IGN 396 Civ. Paved No 4500
Mactan-Cebu International NOP 11 Civ. Paved Yes 10800
Lahug 29 0
Tagbilaran TAG 5 Civ. Paved No 4100
Malabang MLP 8 Civ. Paved No 4200
Ozamis OZC 5 Civ. Paved No 4200
Siquijor 27 0
Sicogon Island ICO unknown 0
Dumaguete DGT 5 Civ. Paved No 6100
Pagadian PAG 2 Civ. Paved No 5500
Dipolog DPL 4 Civ. Paved No 6100
Bacolod BCD 9 Civ. Paved Yes 6400
Roxas RXS 3 Civ. Paved No 6200
Basay Cdcp 101 0
Iloilo ILO 7 Civ. Paved Yes 6800
Kalib0 KLO 6 Civ. Paved No 6000
Ipil IPE unknown 0
Antique 7 Civ. Paved No 3400
Siocon XSO unknown 0
Cuyo CYU unknown 0
El Nido ENI unknown 0
Puerto Princesa International PPS 6 Civ. Paved Yes 8500


Name LOCODE Country
Fais Micronesia
Colonia Micronesia
Malakal Harbor Palau
Lamon Anchorage Philippines
Aras Asan Philippines
Hinatuan Philippines
Bislig / Mindanao PHBPH Philippines
Tandag Philippines
Dapa Philippines
Numancia Philippines
Guiuan Philippines
Gen Macarthur Philippines
Borongan PHBGV Philippines
Surigao PHSUG Philippines
Butuan Philippines
Nasipit PHNAS Philippines
Nasipit PHNAS Philippines
Lagome Philippines
Liloan Philippines
Odiongan Philippines
Tanauan Philippines
Tacloban PHTAC Philippines
Malitbog Philippines
Sogod Philippines
Gingoog PHGIN Philippines
Catbalogan PHCTS Philippines
Talalora Philippines
Maasin Philippines
Baybay Philippines
Mambajao Philippines
Villanueva PHVNV Philippines
Ormoc Philippines
Tagoloan Mis. Or / Cagayan de Or PHTGO Philippines
Pilar Philippines
Port Bello Philippines
Merida Philippines
Leyte Philippines
Cagayan de Oro PHCGY Philippines
Guindulman Bay Philippines
Isabel PHISL Philippines
Calubian Philippines
Villaba Philippines
Palompon Philippines
Arevalo Philippines
San Isidro Philippines
Jagna Philippines
Jetafe Philippines
Borbon Philippines
Iligan PHIGN Philippines
Carmen Philippines
Bogo Philippines
Sogod Bay Philippines
Tubigan Philippines
Mandaue Philippines
Cebu PHCEB Philippines
Polloc PHPLC Philippines
Santa Fe Philippines
Tuburan Philippines
Tagbilaran PHTAG Philippines
Maribojoc Philippines
Malabang Philippines
Jijimenez PHJNZ Philippines
Oroquieta Philippines
Ozamis PHOZC Philippines
Sangi PHSNG Philippines
Sangi PHTLD Philippines
Sibonga Philippines
Pinamungajan Philippines
Inamucan Bay Philippines
Lazi Philippines
Baliango Philippines
Carlos Philippines
Dumanjug Philippines
Cadiz Philippines
Pulauan Philippines
San Sebastian Philippines
Dumaguete PHDGT Philippines
Dipolog Philippines
Pagadian Philippines
Bais / Dumaguete PHBAI Philippines
Silay Philippines
Bacolod PHBCD Philippines
Margosatubig Philippines
Pulupandan PHPUL Philippines
Tolong / Dumaguete PHTLG Philippines
Port Capiz Philippines
Bayawan Philippines
Alicia Philippines
Cartagena / Iloilo PHCRT Philippines
Subanipa Philippines
Santa Clara Philippines
Pandan Philippines
San Jose de Buenavista PHSJI Philippines
Puerto Santa Maria Philippines
Sibuco Philippines
Cuyo Philippines
Taytay Philippines
El Nido Philippines
Bacuit Philippines
Binaluan Philippines


Reservoir Dam Name River Year
Pulangi 4 Pulangi 1986


Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.



0.4 m

The maximum Storm surge height is  0.4m in Jaro, Philippines. This height is estimated for 13 Feb 2018 07:00 UTC .

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (468 locations). Calculation based on advisory number 21 of 13 Feb 2018 18:00:00 UTC. (Simulation using 0.5 minute resolution)

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