Overall Green alert Tropical Cyclone for BOLAVEN-18


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

Meteorological source GDACS (JTWC)
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge n.a.
Vulnerability --


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 83 km/h n.a. n.a. 0.5
GDACS Overall 83 km/h 0.0 m n.a. 0.5

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


83 km/h Current

Up to 12.8 million people in Tropical storm (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Green 1 01 Jan 2018 18:00 83 12.9 million No people Philippines, Viet Nam, Cambodia

Bulletin Timeline

Alert Date (UTC) Category Max winds
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
1 01 Jan 2018 18:00 Tropical depression 56 9.9 million people no people 9.4, 124.6 Philippines
1 02 Jan 2018 06:00 Tropical storm 65 5.1 million people no people 9.7, 120.6 Philippines
1 02 Jan 2018 18:00 Tropical storm 83 730000 people no people 10.1, 116.8 Philippines
1 03 Jan 2018 06:00 Tropical storm 83 no people no people 10.6, 113.5
1 03 Jan 2018 18:00 Tropical storm 65 7.7 million people no people 11.1, 111.2 Cambodia
1 04 Jan 2018 18:00 Tropical depression 46 no people no people 12.3, 108.6 Viet Nam
1 05 Jan 2018 18:00 Tropical depression 37 no people no people 14.1, 106.3 Cambodia
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population




Region Province Country Population
Central Visayas Philippines 4.5 million people
Western Mindanao Philippines 3.1 million people
Western Visayas Philippines 5.3 million people
Southern Tagalog Philippines 8.2 million people
Phu Yen Viet Nam 720000 people
Khanh Hoa Viet Nam 930000 people
Ninh Thuan Viet Nam 1.3 million people
Dac Lac Viet Nam 1.1 million people
Binh Thuan Viet Nam 860000 people
Binh Dinh Viet Nam 1.3 million people
Lam Dong Viet Nam 750000 people
Gia Lai Viet Nam 740000 people
Dong Nai Viet Nam 1.7 million people
Mondol Kiri Cambodia 21000 people
Song Be Viet Nam 1.1 million people
Rotanokiri Cambodia 61000 people

Populated places

Name Region Province Country City class Population
Kabankalan Western Visayas Philippines City 130000 people
Iloilo Iloilo City Philippines City 380000 people
San Jose Western Visayas Philippines City 22000 people
Puerto Princesa Philippines City 150000 people
Nha Trang Khanh Hoa Vietnam City 270000 people
Cam Ranh Ninh Thuan Vietnam City 140000 people
Tuy Hòa Phu Yen Vietnam City 68000 people
Phan Rang Ninh Thuan Vietnam City 91000 people
Hòa Da Binh Thuan Vietnam City -
Dà Lat Lam Dong Vietnam City 130000 people
Phan Thiet Binh Thuan Vietnam City 150000 people
Lac Giao Dac Lak Vietnam City -

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)
Basay Cdcp 101 0
Iloilo ILO 7 Civ. Paved Yes 6800
Antique 7 Civ. Paved No 3400
Cuyo CYU unknown 0
Coron XCN unknown 0
Busuanga USU 45 Civ. Paved No 3900
Culion CUJ unknown 0
El Nido ENI unknown 0
Puerto Princesa International PPS 6 Civ. Paved Yes 8500
Pagasa 2 0
Cam Ranh 6 0
Cam Ranh Bay 14 0
Phu Hiep 6 0
Nhatrang NHA 6 Civ. Paved No 6100
10 Civ. Paved No 9500
Tuy Hoa North 9 0
37 0
Song Cau 3 0
Duc My 30 0
Dong Tre 18 0
Van Canh 58 0
Song Mao 26 0
Phu Tuc 137 0
Dalat / Cam-ly 1503 Civ. Paved No 4500
Dalat / Lien Khuong DLI 962 Civ. Paved No 7700
Cheo Reo 160 0
Buon Blech 640 0
Ban Me Thuot East BMV 533 Civ. Paved No 5900
Ban Me Thuot City 495 0
Buon Tsukl 439 0
Tan Phat 853 0
Bao Lock 840 0
Duc Lap 690 0
Quang Duc Nhon Co HOO unknown 0
Bu Prang 884 0
Bu Krak 850 0
Mondulkiri 700 Civ. Unpaved Yes 4900


Name LOCODE Country
Tolong / Dumaguete PHTLG Philippines
Bayawan Philippines
Pulupandan PHPUL Philippines
Cartagena / Iloilo PHCRT Philippines
San Jose de Buenavista PHSJI Philippines
Cuyo Philippines
Coron Philippines
Culion PHCUJ Philippines
Taytay Philippines
Basuanga Philippines
Binaluan Philippines
El Nido Philippines
Bacuit Philippines
Babuyan Philippines
Puerto Princesa PHPPS Philippines
Quezon Philippines
Eran Philippines
Punta Baja Harbor Philippines
Rio Tuba Philippines
Bono Bono Philippines
Balabac Philippines
Van Phong Bay Vietnam
Ba Ngoi Vietnam
Cam Ranh Vietnam
Nha Trang VNNHA Vietnam
Vung Phan Rang Vietnam


Reservoir Dam Name River Year
Song Hinh 1 Hinh 2000
Danhim Da Nhim 1964
Ham Thuan 1 La Nga 2001
Da Mi 1 La Nga 2001


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.



No locations affected by storm surge > 10 cm

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.