Overall Red Tropical Cyclone alert for YASA-20 in Fiji, from 12 Dec 2020 12:00 UTC to 20 Dec 2020 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 Red alert Tropical Cyclone for YASA-20

in Fiji,

13 Dec 2020 12 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GFS
Exposed countries	Tonga
Exposed population	No people in Category 1 or higher
Maximum wind speed	94 km/h
Maximum storm surge	0.3 m (13 Dec 13:45 UTC)
Vulnerability	Medium (Fiji)

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
GFS Current	94 km/h	0.3 m	163 mm	0.5
GFS Overall	281 km/h	1.3 m	829 mm	2.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

281 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 13 Dec 2020 12:00 UTC

Category	Country	Population
Tropical Storm	Tonga	30

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5	Countries
1	12 Dec 2020 12:00	101	-	-	-	-	-	-	-
2	12 Dec 2020 18:00	83	-	-	-	-	-	-	-
3	13 Dec 2020 00:00	68	-	-	-	-	-	-	-
4	13 Dec 2020 06:00	68	-	-	-	-	-	-	-
5	13 Dec 2020 12:00	184	-		-	-	-	-	-	Tonga

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 13 Dec 2020 12:00 UTC

Level	Country	Population
100-250 mm	Wallis and Futuna	9,881
50-100 mm	Tuvalu, Solomon Islands, Fiji, Wallis and Futuna, Vanuatu	499,223	+
	Tuvalu	3,240
	Solomon Islands	2,843
	Fiji	443,368
	Wallis and Futuna	5,680
	Vanuatu	44,092

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
1	12 Dec 2020 12:00	229	-	-	-	-	-	-	-
2	12 Dec 2020 18:00	268	-	-	-	-	-	-	-
3	13 Dec 2020 00:00	132	-	-	-	-	-	-	-
4	13 Dec 2020 06:00	43	-	-	-	-	-	-	-
5	13 Dec 2020 12:00	1766	10 thousand			-	-	-	-	Tuvalu, Solomon Islands, Fiji, Wallis and Futuna, Vanuatu

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Naindi, Fiji. This height is estimated for 13 Dec 2020 13:45 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs

Storm Surge Exposed locations

Calculation based on the bulletin of 13 Dec 2020 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	13 Dec 2020 13:45	Naindi	Fiji	0.3
	13 Dec 2020 13:45	Korosi	Fiji	0.3
	13 Dec 2020 13:45	Korotasere	Fiji	0.3
	13 Dec 2020 13:45	Naweni	Fiji	0.3
	13 Dec 2020 13:45	Nakarambo	Fiji	0.3
	13 Dec 2020 13:45	Viani	Fiji	0.3
	13 Dec 2020 13:45	Ndrekeniwai	Fiji	0.3
	13 Dec 2020 13:45	Mbangasau	Fiji	0.3
	13 Dec 2020 14:00	Malake	Fiji	0.2
	13 Dec 2020 14:15	Lautoka	Fiji	0.2
	13 Dec 2020 14:15	Nailanga	Fiji	0.2
	13 Dec 2020 14:15	Sorokoba	Fiji	0.2
	13 Dec 2020 14:15	Ba	Fiji	0.2
	13 Dec 2020 14:00	Lao	Fiji	0.2
	13 Dec 2020 13:45	Namaka	Fiji	0.2
	13 Dec 2020 13:45	Nadi	Fiji	0.2
	13 Dec 2020 14:00	Biagunu	Fiji	0.2
	13 Dec 2020 12:30	Paola	New Caledonia	0.2
	13 Dec 2020 12:30	Vieux Tuho	New Caledonia	0.2
	13 Dec 2020 12:30	Touho	New Caledonia	0.2
	13 Dec 2020 12:30	Kokengone	New Caledonia	0.2
	13 Dec 2020 12:30	Saint-Denis	New Caledonia	0.2
	13 Dec 2020 13:45	Momi	Fiji	0.2
	13 Dec 2020 13:45	Solevu	Fiji	0.2
	13 Dec 2020 14:00	Natunuka	Fiji	0.2
	13 Dec 2020 16:45	Lambulmbatuei	Vanuatu	0.2
	13 Dec 2020 16:45	Meriver	Vanuatu	0.2
	13 Dec 2020 16:45	Bourbar	Vanuatu	0.2
	13 Dec 2020 16:45	Lamap	Vanuatu	0.2
	13 Dec 2020 16:45	Peskarus	Vanuatu	0.2
	13 Dec 2020 13:30	Tavua	Fiji	0.2
	13 Dec 2020 13:30	Tavua	Fiji	0.2
	13 Dec 2020 14:15	Nailou	Fiji	0.2
	13 Dec 2020 14:15	Nawi	Fiji	0.2
	13 Dec 2020 14:30	Namboutini	Fiji	0.2
	13 Dec 2020 14:30	Napuka	Fiji	0.2
	13 Dec 2020 13:45	Nalauwaki	Fiji	0.2
	13 Dec 2020 13:45	Soso	Fiji	0.2
	13 Dec 2020 18:00	Vangai	Fiji	0.2
	13 Dec 2020 18:00	Vunikura	Fiji	0.2
	13 Dec 2020 13:00	Navindamu	Fiji	0.1
	13 Dec 2020 13:00	Nagumu	Fiji	0.1
	13 Dec 2020 13:00	Nanduri	Fiji	0.1
	13 Dec 2020 14:30	Koroinasolo	Fiji	0.1
	13 Dec 2020 14:30	Navinggiri	Fiji	0.1
	13 Dec 2020 14:30	Ndalomo	Fiji	0.1
	13 Dec 2020 14:30	Naruwai	Fiji	0.1
	13 Dec 2020 14:30	Nawailevu	Fiji	0.1
	13 Dec 2020 13:45	Somosomo	Fiji	0.1
	13 Dec 2020 18:00	Mamie	New Caledonia	0.1
	13 Dec 2020 18:00	Yate-Village	New Caledonia	0.1
	13 Dec 2020 18:00	Waho	New Caledonia	0.1
	13 Dec 2020 17:30	Pam	New Caledonia	0.1
	13 Dec 2020 17:30	Balaide	New Caledonia	0.1
	13 Dec 2020 17:30	Saint-Paul	New Caledonia	0.1
	13 Dec 2020 13:45	Vatutandova	Fiji	0.1
	13 Dec 2020 15:00	Nasarowangga	Fiji	0.1
	13 Dec 2020 14:00	Matayalevu	Fiji	0.1
	13 Dec 2020 14:00	Matacawalevu	Fiji	0.1
	13 Dec 2020 14:00	Sisili	Fiji	0.1
	13 Dec 2020 14:30	Nasea	Fiji	0.1
	13 Dec 2020 13:00	Meomo	New Caledonia	0.1
	13 Dec 2020 13:00	Houailou	New Caledonia	0.1
	13 Dec 2020 13:00	Ouakaya	New Caledonia	0.1
	13 Dec 2020 13:00	Poro	New Caledonia	0.1
	13 Dec 2020 12:45	Tiabet	New Caledonia	0.1
	13 Dec 2020 13:15	Vunivatu	Fiji	0.1
	13 Dec 2020 13:15	Navukembuli	Fiji	0.1
	13 Dec 2020 13:15	Naua	Fiji	0.1
	13 Dec 2020 13:15	Namukalau	Fiji	0.1
	13 Dec 2020 14:15	Kasavu	Fiji	0.1
	13 Dec 2020 14:15	Korovou	Fiji	0.1
	13 Dec 2020 14:15	Lodoni	Fiji	0.1
	13 Dec 2020 14:15	Naimasimasi	Fiji	0.1
	13 Dec 2020 14:15	Ucunivanua	Fiji	0.1
	13 Dec 2020 14:15	Navuti	Fiji	0.1
	13 Dec 2020 14:15	Nasaga	Fiji	0.1
	13 Dec 2020 14:15	Lovoni	Fiji	0.1
	13 Dec 2020 13:45	Arama	New Caledonia	0.1
	13 Dec 2020 12:00	Nabouwalu	Fiji	0.1
	13 Dec 2020 12:00	Thavanga	Fiji	0.1
	13 Dec 2020 12:00	Ndaria	Fiji	0.1
	13 Dec 2020 12:00	Rave-rave	Fiji	0.1
	13 Dec 2020 12:00	Ndawara	Fiji	0.1
	13 Dec 2020 14:45	Savu Sau	Fiji	0.1
	13 Dec 2020 14:45	Yangganga	Fiji	0.1
	13 Dec 2020 14:30	Tawake	Fiji	0.1
	13 Dec 2020 14:30	Nukusa	Fiji	0.1
	13 Dec 2020 14:00	Nacula	Fiji	0.1
	13 Dec 2020 13:00	Moneo	New Caledonia	0.1
	13 Dec 2020 13:00	Ho	New Caledonia	0.1
	13 Dec 2020 15:30	Thio	New Caledonia	0.1
	13 Dec 2020 15:30	Saint-Gabriel	New Caledonia	0.1
	13 Dec 2020 15:30	Saint Roch	New Caledonia	0.1
	13 Dec 2020 18:00	Rakiraki	Fiji	0.1
	13 Dec 2020 18:00	Vaileka	Fiji	0.1
	13 Dec 2020 18:00	Nanukuloa	Fiji	0.1
	13 Dec 2020 18:00	Nasau	Fiji	0.1
	13 Dec 2020 17:45	Panane	New Caledonia	0.1
	13 Dec 2020 14:00	Rabulu	Fiji	0.1
	13 Dec 2020 17:45	Mouane	New Caledonia	0.1
	13 Dec 2020 12:00	Paagoumene	New Caledonia	0.1
	13 Dec 2020 12:00	Koumac	New Caledonia	0.1
	13 Dec 2020 16:45	Poum	New Caledonia	0.1
	13 Dec 2020 16:45	Poum-Plage	New Caledonia	0.1
	13 Dec 2020 17:45	Waisa	Fiji	0.1
	13 Dec 2020 17:45	Natua	Fiji	0.1
	13 Dec 2020 17:45	Mbangata	Fiji	0.1
	13 Dec 2020 17:45	Savusavu	Fiji	0.1
	13 Dec 2020 17:45	Ono	New Caledonia	0.1
	13 Dec 2020 14:45	Nayavutoka	Fiji	0.1
	13 Dec 2020 16:45	Souleisere	Vanuatu	0.1
	13 Dec 2020 16:45	Piapouria	Vanuatu	0.1
	13 Dec 2020 16:45	Mae	Vanuatu	0.1
	13 Dec 2020 16:45	Tourebiou	Vanuatu	0.1
	13 Dec 2020 16:45	Atsaritibi	Vanuatu	0.1
	13 Dec 2020 16:45	Robertsons	Vanuatu	0.1
	13 Dec 2020 16:45	Bakakara	Vanuatu	0.1
	13 Dec 2020 16:45	Terou	Vanuatu	0.1
	13 Dec 2020 16:45	Worovok	Vanuatu	0.1
	13 Dec 2020 16:45	Ladhu	Vanuatu	0.1
	13 Dec 2020 16:45	Lavatavo	Vanuatu	0.1
	13 Dec 2020 16:45	Iakobone	Vanuatu	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.