Overall Green Tropical Cyclone alert for WASI-20 in Samoa, Niue from 21 Feb 2020 12:00 UTC to 18:00

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 WASI-20

in Samoa, Niue

Event summary

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

GDACS ID	TC 1000656
Name	WASI-20
From - To	21 Feb - 23 Feb
Exposed countries	Samoa, Niue
Exposed population	No people in Category 1 or higher
Maximum wind speed	102 km/h Tropical storm
Maximum storm surge	0.2 m (22 Feb 03:00 UTC)
Vulnerability	Medium (Samoa)

GDACS Score

For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
GDACS JTWC	46 km/h	0.2 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	119 km/h	0.4 m	679 mm	0.5
GFS	140 km/h	0.4 m	436 mm	0.5
ECMWF	65 km/h	0.4 m	589 mm	0.5

Maximum expected impact (wind, storm surge and rainfall) using different data sources.

Virtual OSOCC

Meteo assessment

Satellite products

Analytical products

Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

American Samoa escapes the worst blows of Tropical Storm Wasi 2/24/2020 6:01:00 PM.

Pago Pago, AMERICAN SAMOA — Schools are scheduled to reopen today, businesses will be back in full operation as well as normal government operations, after two back-to-back storms caused disruption on island, which first began, Feb. 16th wi

...(more)

Despite downgrand to Wind Advisory expect breezy conditions tonight 2/23/2020 5:07:00 AM.

Pago Pago, AMERICAN SAMOA — Even though the Tropical Storm Warning has been downgraded to a Wind Advisory, expect breezy conditions through tonight. However, damaging winds will remain south of American Samoa and will not impact the territo

...(more)

View more news

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Analytical products

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (38), (2), WMO (1), INFORM (2),

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