Overall Green Tropical Cyclone alert for SURIGAE-21 in Japan, Philippines, Palau from 13 Apr 2021 12:00 UTC to 14 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

14 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 00:00 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	213 km/h	0.3 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

213 km/h Current Max.

Up to no 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

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
3	14 Apr 2021 12:00	Tropical storm	83	no people	9700 people	8.9, 137.5
3	15 Apr 2021 00:00	Tropical storm	111	no people	16000 people	9.1, 136.8
3	15 Apr 2021 12:00	Category 1	120	no people	30000 people	9.4, 136
3	16 Apr 2021 00:00	Category 1	130	no people	21000 people	9.7, 134.8
3	17 Apr 2021 00:00	Category 2	157	no people	no people	11.1, 131.7
3	18 Apr 2021 00:00	Category 3	185	no people	no people	13.2, 128.8
3	19 Apr 2021 00:00	Category 4	213	no people	no people	14.9, 128.2

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 0.3m in Mualbual, Philippines. This height is estimated for 18 Apr 2021 00:00 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 (21 locations). Calculation based on advisory number 3 of 14 Apr 2021 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	18 Apr 2021 00:00	Mualbual	Philippines	0.3
	17 Apr 2021 21:00	San Andres	Philippines	0.2
	17 Apr 2021 22:00	Tatabunan	Philippines	0.2
	17 Apr 2021 22:00	Narombacan	Philippines	0.2
	18 Apr 2021 00:00	Wright	Philippines	0.2
	18 Apr 2021 00:00	Pequit	Philippines	0.2
	18 Apr 2021 00:00	Pabanong	Philippines	0.2
	18 Apr 2021 00:00	Hinabangan	Philippines	0.2
	18 Apr 2021 00:00	Guintampilan	Philippines	0.2
	18 Apr 2021 00:00	Bagacay	Philippines	0.2
	18 Apr 2021 00:00	Macalonud	Philippines	0.2
	18 Apr 2021 00:00	Bangon	Philippines	0.2
	18 Apr 2021 00:00	Babatngon	Philippines	0.1
	18 Apr 2021 00:00	Daram	Philippines	0.1
	18 Apr 2021 00:00	Catbalogan	Philippines	0.1
	18 Apr 2021 00:00	Carigara	Philippines	0.1
	18 Apr 2021 00:00	Barugo	Philippines	0.1
	18 Apr 2021 00:00	Capoocan	Philippines	0.1
	18 Apr 2021 00:00	Rizal	Philippines	0.1
	18 Apr 2021 00:00	Sugud	Philippines	0.1
	18 Apr 2021 00:00	Bikal	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.