Overall Green Tropical Cyclone alert for VICKY-20 in Niue, American Samoa, Samoa on 20 Feb 2020 18:00 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 VICKY-20

in Niue, American Samoa, Samoa

20 Feb 2020 18 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone VICKY-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Niue, American Samoa, Samoa
Exposed population	No people in Category 1 or higher
Maximum wind speed	83 km/h
Maximum storm surge	0.2 m (20 Feb 19:00 UTC)
Vulnerability	High (Niue)

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	83 km/h	0.2 m	n.a.	0.5
Overall	83 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

83 km/h Current Max.

Up to 230000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	1	20 Feb 2020 18:00	83	230 thousand	No people	Samoa, American Samoa, Niue

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)	Countries
1	20 Feb 2020 18:00	Tropical storm	83	no people	no people	-14.3, -171.5
1	21 Feb 2020 06:00	Tropical storm	83	no people	no people	-16, -170.4
1	21 Feb 2020 18:00	Tropical storm	74	no people	1200 people	-17.6, -170	Niue
1	22 Feb 2020 06:00	Tropical storm	65	no people	1200 people	-18.6, -170.2	Niue
1	22 Feb 2020 18:00	Tropical depression	56	no people	no people	-19.3, -171.2

Actual track of the current bulletin

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

Download:

Exposed population - AoIs

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

Countries

Country
Samoa
American Samoa
Niue

Provinces

Region Province	Country
Samoa	Samoa
American Samoa	American Samoa
Niue	Niue

Populated places

Name	Country	City class	Population
Apia	Samoa	Capital	40000 people
Taputimu	American Samoa	City	<1000 people
Futiga	American Samoa	City	<1000 people
Mesepa	American Samoa	City	<1000 people
Fagasa	American Samoa	City	<1000 people
Pago Pago	American Samoa	Capital	4200 people
Utulei	American Samoa	City	<1000 people
Leloaloa	American Samoa	City	<1000 people
Afono	American Samoa	City	<1000 people
Alofau	American Samoa	City	<1000 people
Aoa	American Samoa	City	<1000 people
Amouli	American Samoa	City	<1000 people
Alao	American Samoa	City	<1000 people
Tula	American Samoa	City	<1000 people
Alofi	Niue	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)
Lalomalava	LAV	unknown				0
Faleolo	APW	18	Civ.	Paved	Yes	8800
Pago Pago International	PPG	9	Civ.	Paved	Yes	9000
Maota	MXS	unknown				0
Niue Hanan	IUE	64	Civ.	Paved	Yes	7600

Ports

Name	LOCODE	Country
Apia	WSAPW	Samoa
Apia		Samoa
Pago Pago	ASPPG	American Samoa
Alofi		Niue

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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 Lotofago, Samoa. This height is estimated for 20 Feb 2020 19:00 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 (42 locations). Calculation based on advisory number 1 of 20 Feb 2020 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	20 Feb 2020 19:00	Lotofago	Samoa	0.2
	20 Feb 2020 21:00	Poloa	American Samoa	0.2
	20 Feb 2020 21:00	Amanave	American Samoa	0.2
	20 Feb 2020 21:00	Seetaga	American Samoa	0.2
	20 Feb 2020 21:00	Fagamalo	American Samoa	0.2
	20 Feb 2020 19:00	Poutasi	Samoa	0.1
	20 Feb 2020 19:00	Amaile	Samoa	0.1
	20 Feb 2020 21:00	Amaluia	American Samoa	0.1
	20 Feb 2020 21:00	Leone	American Samoa	0.1
	20 Feb 2020 21:00	Vailoatai	American Samoa	0.1
	20 Feb 2020 21:00	Taputimu	American Samoa	0.1
	20 Feb 2020 21:00	Futiga	American Samoa	0.1
	20 Feb 2020 21:00	Pavaiai	American Samoa	0.1
	20 Feb 2020 21:00	Vaitogi	American Samoa	0.1
	20 Feb 2020 21:00	Iliili	American Samoa	0.1
	20 Feb 2020 21:00	Mesepa	American Samoa	0.1
	20 Feb 2020 21:00	Faleniu	American Samoa	0.1
	22 Feb 2020 07:00	Mutalau	Niue	0.1
	20 Feb 2020 20:00	Aasu	American Samoa	0.1
	20 Feb 2020 20:00	Fagasa	American Samoa	0.1
	20 Feb 2020 20:00	Pago Pago	American Samoa	0.1
	22 Feb 2020 07:00	Alofi	Niue	0.1
	22 Feb 2020 07:00	Lakepa	Niue	0.1
	22 Feb 2020 07:00	Liku	Niue	0.1
	20 Feb 2020 19:00	Siumu	Samoa	0.1
	20 Feb 2020 21:00	Siufaga	American Samoa	0.1
	20 Feb 2020 21:00	Nuuuli	American Samoa	0.1
	20 Feb 2020 21:00	Fagatogo	American Samoa	0.1
	20 Feb 2020 21:00	Atuu	American Samoa	0.1
	20 Feb 2020 21:00	Utulei	American Samoa	0.1
	20 Feb 2020 21:00	Matuu	American Samoa	0.1
	20 Feb 2020 21:00	Fagaalu	American Samoa	0.1
	20 Feb 2020 21:00	Leloaloa	American Samoa	0.1
	20 Feb 2020 21:00	Aua	American Samoa	0.1
	20 Feb 2020 21:00	Lauliifou	American Samoa	0.1
	20 Feb 2020 21:00	Afono	American Samoa	0.1
	20 Feb 2020 21:00	Masefau	American Samoa	0.1
	20 Feb 2020 21:00	Auto	American Samoa	0.1
	20 Feb 2020 21:00	Fagaitua	American Samoa	0.1
	20 Feb 2020 21:00	Alofau	American Samoa	0.1
	22 Feb 2020 09:00	Avatele	Niue	0.1
	22 Feb 2020 07:00	Hakupu	Niue	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.