Overall Green alert Tropical Cyclone for DUJUAN-21
in Philippines, Palau

Impact

Tropical Cyclone DUJUAN-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS (JTWC)
Exposed countries Philippines, Palau
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.4 m (18 Feb 04:00 UTC)
Vulnerability Medium (Palau)

GDACS Score

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 46 km/h n.a. n.a. 0.5
GDACS Overall 83 km/h 0.4 m n.a. 0.5

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

Wind

46 km/h Current Max.

Up to 720000 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
Countries
Green 1 17 Feb 2021 06:00 102 20.7 million No people Palau, Philippines
Green 2 17 Feb 2021 12:00 111 41.9 million No people Palau, Philippines
Green 3 17 Feb 2021 18:00 111 27.5 million No people Palau, Philippines
Green 4 18 Feb 2021 00:00 102 30.1 million No people Palau, Philippines
Green 5 18 Feb 2021 06:00 93 31.5 million No people Philippines
Green 6 18 Feb 2021 12:00 93 33.6 million No people Philippines
Green 7 18 Feb 2021 18:00 93 37.6 million No people Palau, Philippines
Green 8 19 Feb 2021 00:00 102 35.3 million No people Palau, Philippines
Green 9 19 Feb 2021 06:00 93 36 million No people Philippines, Palau
Green 10 19 Feb 2021 12:00 83 36.5 million No people Philippines, Palau
Green 11 19 Feb 2021 18:00 83 34.9 million No people Philippines, Palau
Green 12 20 Feb 2021 00:00 65 17.7 million No people Palau, Philippines
Green 13 20 Feb 2021 06:00 56 20 thousand No people Palau
Green 14 20 Feb 2021 12:00 65 2.8 million No people Palau, Philippines
Green 15 20 Feb 2021 18:00 56 20 thousand No people Palau
Green 16 21 Feb 2021 00:00 65 17.6 million No people Philippines, Palau
Green 17 21 Feb 2021 06:00 65 7.5 million No people Philippines, Palau
Green 18 21 Feb 2021 12:00 65 5.3 million No people Philippines, Palau
Green 19 21 Feb 2021 18:00 46 720 thousand No people Philippines, Palau

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 17 Feb 2021 06:00 Tropical depression 46 21000 people no people 6.6, 133.1
GREEN
2 17 Feb 2021 12:00 Tropical depression 56 21000 people no people 6.8, 132.4
GREEN
3 17 Feb 2021 18:00 Tropical depression 56 21000 people no people 7, 132.7
GREEN
4 18 Feb 2021 00:00 Tropical storm 65 21000 people no people 7, 132.6
GREEN
5 18 Feb 2021 06:00 Tropical storm 65 no people no people 7.3, 132.1
GREEN
6 18 Feb 2021 12:00 Tropical storm 65 no people no people 7.3, 131.8
GREEN
7 18 Feb 2021 18:00 Tropical storm 65 21000 people no people 7.2, 131.7
GREEN
8 19 Feb 2021 00:00 Tropical storm 83 18000 people no people 7.2, 131.2
GREEN
9 19 Feb 2021 06:00 Tropical storm 83 2.6 million people no people 7.2, 129.8
GREEN
10 19 Feb 2021 12:00 Tropical storm 83 19000 people no people 6.2, 130.3
GREEN
11 19 Feb 2021 18:00 Tropical storm 83 40000 people no people 6.1, 130.1
GREEN
12 20 Feb 2021 00:00 Tropical storm 65 <1000 people no people 6.4, 131.3
GREEN
13 20 Feb 2021 06:00 Tropical depression 56 no people no people 6.8, 131.7
GREEN
14 20 Feb 2021 12:00 Tropical depression 56 no people no people 8, 131.3
GREEN
15 20 Feb 2021 18:00 Tropical depression 56 no people no people 8.1, 130
GREEN
16 21 Feb 2021 00:00 Tropical depression 56 400000 people no people 8.1, 130.2
GREEN
17 21 Feb 2021 06:00 Tropical storm 65 1.6 million people no people 9.1, 127.8
GREEN
18 21 Feb 2021 12:00 Tropical storm 65 5.2 million people no people 10.3, 125.8 Philippines
GREEN
19 21 Feb 2021 18:00 Tropical depression 46 no people no people 10.2, 125.9
GREEN
19 22 Feb 2021 06:00 Tropical depression 46 no people no people 11.6, 123.5
GREEN
19 22 Feb 2021 18:00 Tropical depression 37 no people no people 12.3, 121.4 Philippines
GREEN
19 23 Feb 2021 06:00 Tropical depression 37 no people no people 12.3, 119.8 Philippines
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population

Countries

Country
Philippines
Palau

Provinces

Region Province Country Population
Northern Mindanao Philippines 3.5 million people
Eastern Visayas Philippines 3 million people
Southern Mindanao Philippines 4.4 million people
Palau Palau 16000 people

Populated places

Name Region Province Country City class Population
Guiuan Eastern Visayas Philippines City 11000 people
Koror Palau Palau City 11000 people
Melekeok Palau Capital <1000 people

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Siargao 3 0
Nonoc 4 0
Surigao SUG 6 Civ. Paved No 5000
Guiuan 2 Civ. Paved No 7000
A.B. Won Pat International 6 0
Peleliu 3 0
Airai ROR 54 Civ. Paved Yes 7200

Ports

Name LOCODE Country
Numancia Philippines
Dapa Philippines
Surigao PHSUG Philippines
Liloan Philippines
Lagome Philippines
Guiuan Philippines
Malakal Harbor Palau

Rainfall

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.

...

StormSurge

0.4 m

The maximum Storm surge height is  0.5m in Sebangan, Malaysia. This height is estimated for 18 Feb 2021 04:00 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 (333 locations). Calculation based on advisory number 18 of 21 Feb 2021 12:00:00 UTC. (Simulation using 0.5 minute resolution)

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