Overall Green Tropical Cyclone alert for SURIGAE-21 in Japan, Philippines, Palau from 13 Apr 2021 12:00 UTC to 16 Apr 2021 00:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for SURIGAE-21

in Japan, Philippines, Palau

16 Apr 2021 00 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Exposed countries	Japan, Philippines, Palau
Exposed population	No people in Category 1 or higher
Maximum wind speed	306 km/h
Maximum storm surge	0.2 m (18 Apr 18:00 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
Current	222 km/h	0.2 m	n.a.	0.5
Overall	306 km/h	0.2 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

222 km/h Current Max.

Up to <1000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	13 Apr 2021 12:00	213	No people	No people
2	13 Apr 2021 18:00	213	No people	No people
3	14 Apr 2021 00:00	213	30 thousand	No people	Palau
4	14 Apr 2021 06:00	222	10 thousand	No people	Palau
5	14 Apr 2021 12:00	222	10 thousand	No people
6	14 Apr 2021 18:00	213	10 thousand	No people	Palau
7	15 Apr 2021 00:00	213	20 thousand	No people	Palau
8	15 Apr 2021 06:00	213	1.1 million	No people	Palau, Philippines
9	15 Apr 2021 12:00	213	780 thousand	No people	Palau, Philippines
10	15 Apr 2021 18:00	222	4.8 million	No people	Palau, Philippines
11	16 Apr 2021 00:00	222	850 thousand	Few people	Palau, Philippines

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)
1	13 Apr 2021 12:00	Tropical depression	46	no people	no people	7.9, 137.3
2	13 Apr 2021 18:00	Tropical depression	56	no people	no people	8.1, 137.1
3	14 Apr 2021 00:00	Tropical storm	65	no people	9600 people	8.5, 137.7
4	14 Apr 2021 06:00	Tropical storm	65	no people	9600 people	8.9, 137.4
5	14 Apr 2021 12:00	Tropical storm	65	no people	no people	8.9, 137
6	14 Apr 2021 18:00	Tropical storm	83	no people	9700 people	8.9, 136.8
7	15 Apr 2021 00:00	Tropical storm	93	no people	13000 people	9, 136.4
8	15 Apr 2021 06:00	Tropical storm	93	no people	31000 people	8.9, 136.3
9	15 Apr 2021 12:00	Tropical storm	102	no people	21000 people	9, 135.7
10	15 Apr 2021 18:00	Category 1	120	no people	21000 people	8.6, 135.2
11	16 Apr 2021 00:00	Category 1	139	<1000 people	21000 people	8.8, 134.6
11	16 Apr 2021 12:00	Category 2	157	no people	21000 people	9.4, 133.1
11	17 Apr 2021 00:00	Category 2	176	no people	no people	10.3, 131.4
11	17 Apr 2021 12:00	Category 3	194	no people	no people	11.3, 129.5
11	18 Apr 2021 00:00	Category 4	213	no people	820000 people	12, 128.7
11	19 Apr 2021 00:00	Category 4	222	no people	780000 people	13.8, 127.2
11	20 Apr 2021 00:00	Category 3	204	no people	no people	15.6, 127.3
11	21 Apr 2021 00:00	Category 3	185	no people	no people	17.6, 128.1

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

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

Critical infrastructure

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

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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.

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Mualbual, Philippines. This height is estimated for 18 Apr 2021 18:00 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 (40 locations). Calculation based on advisory number 11 of 16 Apr 2021 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	18 Apr 2021 18:00	Mualbual	Philippines	0.2
	19 Apr 2021 23:00	Pequit	Philippines	0.2
	19 Apr 2021 23:00	Pabanong	Philippines	0.2
	19 Apr 2021 23:00	Hinabangan	Philippines	0.2
	19 Apr 2021 23:00	Wright	Philippines	0.2
	18 Apr 2021 13:00	San Andres	Philippines	0.2
	19 Apr 2021 22:00	Bangon	Philippines	0.2
	18 Apr 2021 16:00	Tatabunan	Philippines	0.2
	18 Apr 2021 16:00	Narombacan	Philippines	0.2
	18 Apr 2021 16:00	Bagacay	Philippines	0.2
	18 Apr 2021 18:00	Guintampilan	Philippines	0.2
	18 Apr 2021 16:00	Macalonud	Philippines	0.2
	19 Apr 2021 18:00	Babatngon	Philippines	0.2
	19 Apr 2021 17:00	Catbalogan	Philippines	0.1
	19 Apr 2021 13:00	Bikal	Philippines	0.1
	19 Apr 2021 03:00	Bantayan	Philippines	0.1
	18 Apr 2021 21:00	Daram	Philippines	0.1
	19 Apr 2021 21:00	Pagsanjan	Philippines	0.1
	18 Apr 2021 18:00	Barceloneta	Philippines	0.1
	19 Apr 2021 06:00	Barugo	Philippines	0.1
	19 Apr 2021 22:00	Bagas	Philippines	0.1
	19 Apr 2021 21:00	Santa Margarita	Philippines	0.1
	18 Apr 2021 17:00	Cadiz	Philippines	0.1
	18 Apr 2021 17:00	Sagay	Philippines	0.1
	18 Apr 2021 17:00	Toboso	Philippines	0.1
	18 Apr 2021 17:00	Vito	Philippines	0.1
	18 Apr 2021 17:00	Salamanca	Philippines	0.1
	18 Apr 2021 17:00	Escalante	Philippines	0.1
	18 Apr 2021 17:00	Sillon	Philippines	0.1
	19 Apr 2021 13:00	Culaba	Philippines	0.1
	19 Apr 2021 13:00	Tabojab	Philippines	0.1
	19 Apr 2021 13:00	Caibiran	Philippines	0.1
	19 Apr 2021 15:00	Silanga	Philippines	0.1
	19 Apr 2021 15:00	Capitun-an	Philippines	0.1
	19 Apr 2021 11:00	Paet	Philippines	0.1
	19 Apr 2021 11:00	Rizal	Philippines	0.1
	19 Apr 2021 13:00	San Vicente	Philippines	0.1
	19 Apr 2021 13:00	Bahay	Philippines	0.1
	19 Apr 2021 13:00	Igot	Philippines	0.1
	18 Apr 2021 19:00	Carigara	Philippines	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.