Overall Green Tropical Cyclone alert for FOUR-20 in , Fiji, Vanuatu from 11 Dec 2020 00:00 UTC to 12 Dec 2020 12:00 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 FOUR-20

in , Fiji, Vanuatu

11 Dec 2020 06 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 FOUR-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GFS
Exposed countries	Fiji, Vanuatu
Exposed population	No people in Category 1 or higher
Maximum wind speed	76 km/h
Maximum storm surge	0.4 m (11 Dec 17:30 UTC)
Vulnerability	--

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	76 km/h	0.4 m	21 mm	0.5
GFS Overall	166 km/h	0.5 m	976 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

166 km/h

Up to 30 thousand can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 11 Dec 2020 06:00 UTC

Category	Country	Population
Tropical Storm	Fiji, Vanuatu	32,546	+
	Fiji	2,164
	Vanuatu	30,382

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	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	11 Dec 2020 00:00	65	-	-	-	-	-	-	-
	2	11 Dec 2020 06:00	119	-		-	-	-	-	-	Fiji, Vanuatu

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 11 Dec 2020 06:00 UTC

Level	Country	Population
250-500 mm	Vanuatu	162
100-250 mm	Fiji, Vanuatu, New Caledonia	85,336	+
	Fiji	2,164
	Vanuatu	71,561
	New Caledonia	11,611
50-100 mm	Tokelau, Tuvalu, Samoa, Vanuatu, Fiji, New Caledonia	189,104	+
	Tokelau	431
	Tuvalu	481
	Fiji	82,706
	Samoa	92
	Vanuatu	39,125
	New Caledonia	66,269

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
	1	11 Dec 2020 00:00	18	-	-	-	-	-	-	-
	2	11 Dec 2020 06:00	938	90 thousand				-	-	-	Tokelau, Tuvalu, Fiji, Samoa, Vanuatu, New Caledonia

Impact estimation for the next 72h

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StormSurge

0.4 m

The maximum Storm surge height is 0.4m in Lautoka, Fiji. This height is estimated for 11 Dec 2020 17:30 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 11 Dec 2020 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	11 Dec 2020 17:30	Lautoka	Fiji	0.4
	11 Dec 2020 17:30	Nailanga	Fiji	0.4
	11 Dec 2020 17:30	Sorokoba	Fiji	0.4
	11 Dec 2020 17:45	Ba	Fiji	0.3
	11 Dec 2020 21:15	Koroinasolo	Fiji	0.3
	11 Dec 2020 21:15	Savu Sau	Fiji	0.3
	11 Dec 2020 21:15	Navinggiri	Fiji	0.3
	11 Dec 2020 21:15	Yangganga	Fiji	0.3
	11 Dec 2020 21:15	Nawailevu	Fiji	0.3
	12 Dec 2020 00:45	Natunuka	Fiji	0.3
	12 Dec 2020 00:45	Tavua	Fiji	0.3
	12 Dec 2020 00:45	Rabulu	Fiji	0.3
	12 Dec 2020 00:45	Togowere	Fiji	0.3
	11 Dec 2020 07:30	Moneo	New Caledonia	0.3
	11 Dec 2020 07:30	Ho	New Caledonia	0.3
	11 Dec 2020 07:30	Meomo	New Caledonia	0.3
	11 Dec 2020 07:30	Houailou	New Caledonia	0.3
	11 Dec 2020 07:30	Ouakaya	New Caledonia	0.3
	11 Dec 2020 07:30	Poro	New Caledonia	0.3
	11 Dec 2020 14:00	Namaka	Fiji	0.3
	11 Dec 2020 17:45	Lao	Fiji	0.3
	11 Dec 2020 17:45	Nailou	Fiji	0.3
	11 Dec 2020 17:45	Nawi	Fiji	0.3
	11 Dec 2020 17:45	Vunikura	Fiji	0.3
	11 Dec 2020 17:45	Napuka	Fiji	0.3
	11 Dec 2020 11:15	Naindi	Fiji	0.2
	11 Dec 2020 11:15	Korosi	Fiji	0.2
	11 Dec 2020 11:15	Korotasere	Fiji	0.2
	11 Dec 2020 11:15	Naweni	Fiji	0.2
	11 Dec 2020 11:15	Nakarambo	Fiji	0.2
	11 Dec 2020 11:15	Viani	Fiji	0.2
	11 Dec 2020 17:30	Soso	Fiji	0.2
	11 Dec 2020 17:30	Somosomo	Fiji	0.2
	11 Dec 2020 17:30	Matayalevu	Fiji	0.2
	11 Dec 2020 17:30	Matacawalevu	Fiji	0.2
	11 Dec 2020 17:30	Sisili	Fiji	0.2
	11 Dec 2020 11:00	Ndrekeniwai	Fiji	0.2
	11 Dec 2020 11:00	Mbangasau	Fiji	0.2
	11 Dec 2020 13:45	Nalauwaki	Fiji	0.2
	11 Dec 2020 21:00	Ouanache	New Caledonia	0.2
	11 Dec 2020 21:00	Paola	New Caledonia	0.2
	11 Dec 2020 21:00	Vieux Tuho	New Caledonia	0.2
	11 Dec 2020 21:00	Touho	New Caledonia	0.2
	11 Dec 2020 21:00	Kokengone	New Caledonia	0.2
	11 Dec 2020 10:45	Malake	Fiji	0.2
	11 Dec 2020 10:45	Biagunu	Fiji	0.2
	11 Dec 2020 07:15	Kouaoua	New Caledonia	0.2
	11 Dec 2020 07:00	Poum-Plage	New Caledonia	0.2
	11 Dec 2020 07:00	Arama	New Caledonia	0.2
	11 Dec 2020 07:00	Pam	New Caledonia	0.2
	11 Dec 2020 17:15	Solevu	Fiji	0.2
	11 Dec 2020 17:30	Tavua	Fiji	0.2
	11 Dec 2020 17:30	Nacula	Fiji	0.2
	11 Dec 2020 17:30	Navotua	Fiji	0.2
	11 Dec 2020 17:30	Tamusua	Fiji	0.2
	11 Dec 2020 17:30	Teci	Fiji	0.2
	11 Dec 2020 21:15	Rakiraki	Fiji	0.2
	11 Dec 2020 21:15	Vaileka	Fiji	0.2
	11 Dec 2020 21:15	Nanukuloa	Fiji	0.2
	11 Dec 2020 09:30	Nasarowangga	Fiji	0.2
	13 Dec 2020 08:30	Yate-Village	New Caledonia	0.2
	13 Dec 2020 08:30	Waho	New Caledonia	0.2
	13 Dec 2020 08:30	Goro	New Caledonia	0.2
	12 Dec 2020 00:15	Kasavu	Fiji	0.1
	12 Dec 2020 00:15	Nausori	Fiji	0.1
	12 Dec 2020 00:15	Korovou	Fiji	0.1
	12 Dec 2020 00:15	Lokia	Fiji	0.1
	12 Dec 2020 00:15	Naimasimasi	Fiji	0.1
	12 Dec 2020 00:15	Ucunivanua	Fiji	0.1
	12 Dec 2020 00:15	Cautata	Fiji	0.1
	12 Dec 2020 00:15	Nasilai	Fiji	0.1
	12 Dec 2020 00:15	Dromuna	Fiji	0.1
	11 Dec 2020 17:30	Mbukama	Fiji	0.1
	11 Dec 2020 17:30	Yasawairara	Fiji	0.1
	11 Dec 2020 17:00	Nasau	Fiji	0.1
	11 Dec 2020 20:15	Takataka	Solomon Islands	0.1
	11 Dec 2020 20:15	Ahia	Solomon Islands	0.1
	12 Dec 2020 00:45	Natua	Fiji	0.1
	12 Dec 2020 00:45	Mbangata	Fiji	0.1
	12 Dec 2020 00:45	Savusavu	Fiji	0.1
	11 Dec 2020 18:00	Vangai	Fiji	0.1
	12 Dec 2020 00:00	Lodoni	Fiji	0.1
	12 Dec 2020 00:00	Lawaki	Fiji	0.1
	12 Dec 2020 00:00	Naingani	Fiji	0.1
	12 Dec 2020 00:00	Navuti	Fiji	0.1
	12 Dec 2020 00:00	Nasaga	Fiji	0.1
	12 Dec 2020 00:00	Rukuruku	Fiji	0.1
	12 Dec 2020 00:00	Lovoni	Fiji	0.1
	12 Dec 2020 07:45	Houone	New Caledonia	0.1
	12 Dec 2020 07:45	Tiabet	New Caledonia	0.1
	11 Dec 2020 16:30	Nabouwalu	Fiji	0.1
	11 Dec 2020 16:30	Thavanga	Fiji	0.1
	11 Dec 2020 16:30	Ndaria	Fiji	0.1
	11 Dec 2020 16:30	Rave-rave	Fiji	0.1
	11 Dec 2020 20:45	Haarumou	Solomon Islands	0.1
	11 Dec 2020 20:45	Ahenawai	Solomon Islands	0.1
	11 Dec 2020 20:45	Manuagere	Solomon Islands	0.1
	11 Dec 2020 20:45	Hada	Solomon Islands	0.1
	11 Dec 2020 20:45	Tawaiabu	Solomon Islands	0.1
	11 Dec 2020 20:45	Tarosi	Solomon Islands	0.1
	11 Dec 2020 20:45	Ubuna	Solomon Islands	0.1
	11 Dec 2020 20:45	Maneoura	Solomon Islands	0.1
	11 Dec 2020 20:45	Maranu'u	Solomon Islands	0.1
	11 Dec 2020 20:45	Heuru	Solomon Islands	0.1
	11 Dec 2020 20:45	Asimaenioha	Solomon Islands	0.1
	11 Dec 2020 20:45	Oneoia	Solomon Islands	0.1
	11 Dec 2020 20:45	Suuruaharau	Solomon Islands	0.1
	11 Dec 2020 20:45	Onehatare	Solomon Islands	0.1
	11 Dec 2020 20:45	Bia	Solomon Islands	0.1
	11 Dec 2020 20:45	Etamarorai	Solomon Islands	0.1
	11 Dec 2020 20:45	Wango	Solomon Islands	0.1
	11 Dec 2020 20:45	Manewaro	Solomon Islands	0.1
	11 Dec 2020 20:45	Fagani	Solomon Islands	0.1
	11 Dec 2020 20:45	Palasuu	Solomon Islands	0.1
	12 Dec 2020 07:15	Panane	New Caledonia	0.1
	12 Dec 2020 07:15	Mouane	New Caledonia	0.1
	12 Dec 2020 07:15	Ono	New Caledonia	0.1
	12 Dec 2020 07:15	Wala	New Caledonia	0.1
	12 Dec 2020 07:15	Bweo	New Caledonia	0.1
	12 Dec 2020 07:15	Pairome	New Caledonia	0.1
	11 Dec 2020 20:45	Anoni'usu	Solomon Islands	0.1
	11 Dec 2020 20:45	Saa	Solomon Islands	0.1
	11 Dec 2020 20:45	Umara	Solomon Islands	0.1
	11 Dec 2020 20:45	Bio I	Solomon Islands	0.1
	11 Dec 2020 20:45	Sungasau	Solomon Islands	0.1
	11 Dec 2020 20:45	Suenn	Solomon Islands	0.1
	11 Dec 2020 20:45	Tawarodo	Solomon Islands	0.1
	11 Dec 2020 20:45	Hulihale	Solomon Islands	0.1
	11 Dec 2020 20:45	Tetere	Solomon Islands	0.1
	11 Dec 2020 20:45	Kaokaona	Solomon Islands	0.1
	11 Dec 2020 20:45	Pamua	Solomon Islands	0.1
	11 Dec 2020 20:45	Kaonasughu	Solomon Islands	0.1
	11 Dec 2020 07:00	Poum	New Caledonia	0.1
	11 Dec 2020 20:45	Waimapuru	Solomon Islands	0.1
	11 Dec 2020 20:45	Mwanimauru	Solomon Islands	0.1
	11 Dec 2020 20:45	Manihinua	Solomon Islands	0.1
	11 Dec 2020 20:45	Manchuki	Solomon Islands	0.1
	11 Dec 2020 20:45	Ngorangora	Solomon Islands	0.1
	11 Dec 2020 20:45	Arohane	Solomon Islands	0.1
	11 Dec 2020 20:45	Tawani	Solomon Islands	0.1
	11 Dec 2020 20:45	Manewiriwiri	Solomon Islands	0.1
	11 Dec 2020 20:45	Namakohigho	Solomon Islands	0.1
	11 Dec 2020 20:45	Wango	Solomon Islands	0.1
	11 Dec 2020 20:45	Maniate	Solomon Islands	0.1
	11 Dec 2020 20:45	Tawasu	Solomon Islands	0.1
	11 Dec 2020 20:45	Ulawa I	Solomon Islands	0.1
	11 Dec 2020 20:45	Mwarada	Solomon Islands	0.1
	11 Dec 2020 20:45	Ahia	Solomon Islands	0.1
	11 Dec 2020 20:45	Sioduru	Solomon Islands	0.1
	11 Dec 2020 20:45	Su'utaluhia	Solomon Islands	0.1
	11 Dec 2020 20:45	Taheramo	Solomon Islands	0.1
	11 Dec 2020 20:45	Ngorangora	Solomon Islands	0.1
	11 Dec 2020 09:30	Navindamu	Fiji	0.1
	11 Dec 2020 20:45	Manakia	Solomon Islands	0.1
	11 Dec 2020 20:45	Paa	Solomon Islands	0.1
	11 Dec 2020 20:45	Naparaoinawa	Solomon Islands	0.1
	11 Dec 2020 20:45	Ngagatari	Solomon Islands	0.1
	11 Dec 2020 20:45	Nahahau	Solomon Islands	0.1
	11 Dec 2020 18:00	Nanduri	Fiji	0.1
	11 Dec 2020 18:00	Vatutandova	Fiji	0.1
	11 Dec 2020 18:00	Nasea	Fiji	0.1
	12 Dec 2020 13:30	Vunivatu	Fiji	0.1
	12 Dec 2020 13:30	Navukembuli	Fiji	0.1
	12 Dec 2020 13:30	Naua	Fiji	0.1
	12 Dec 2020 13:30	Namukalau	Fiji	0.1
	12 Dec 2020 06:15	Loanatom	Vanuatu	0.1
	12 Dec 2020 06:15	Loounemeloupang	Vanuatu	0.1
	12 Dec 2020 06:15	Loounimhapeun	Vanuatu	0.1
	12 Dec 2020 06:15	Laounalang	Vanuatu	0.1
	12 Dec 2020 06:15	Lowkahmal	Vanuatu	0.1
	12 Dec 2020 06:15	Lownepina	Vanuatu	0.1
	12 Dec 2020 06:15	Imwareupo	Vanuatu	0.1
	12 Dec 2020 06:15	Waisisi	Vanuatu	0.1
	13 Dec 2020 02:00	Thio	New Caledonia	0.1
	13 Dec 2020 02:00	Saint-Gabriel	New Caledonia	0.1
	13 Dec 2020 02:00	Saint Roch	New Caledonia	0.1
	11 Dec 2020 08:00	Poindimie	New Caledonia	0.1
	11 Dec 2020 08:00	Ometteux	New Caledonia	0.1
	11 Dec 2020 08:00	Ponerihouen	New Caledonia	0.1
	11 Dec 2020 08:00	Bayes	New Caledonia	0.1
	11 Dec 2020 08:00	Mou	New Caledonia	0.1
	12 Dec 2020 00:30	Ndalomo	Fiji	0.1
	11 Dec 2020 21:00	Narano	Solomon Islands	0.1
	11 Dec 2020 21:00	Napurongo	Solomon Islands	0.1
	11 Dec 2020 21:00	Naganea	Solomon Islands	0.1
	11 Dec 2020 21:00	Nakuhu	Solomon Islands	0.1
	11 Dec 2020 21:00	Naparaohau	Solomon Islands	0.1
	11 Dec 2020 21:00	Naana	Solomon Islands	0.1
	11 Dec 2020 21:00	Mwaniwowo	Solomon Islands	0.1
	11 Dec 2020 21:00	Mwarairaru	Solomon Islands	0.1
	11 Dec 2020 21:00	Maniborkosi	Solomon Islands	0.1
	11 Dec 2020 21:00	Nasuragena	Solomon Islands	0.1
	11 Dec 2020 21:00	Funakumwa	Solomon Islands	0.1
	11 Dec 2020 21:00	Tawarogha	Solomon Islands	0.1
	11 Dec 2020 21:00	Geta	Solomon Islands	0.1
	11 Dec 2020 21:00	Star Harb	Solomon Islands	0.1
	11 Dec 2020 21:00	Mami	Solomon Islands	0.1
	11 Dec 2020 21:00	Fageifa	Solomon Islands	0.1
	11 Dec 2020 21:00	Ragapu	Solomon Islands	0.1
	11 Dec 2020 21:00	Ghupuna	Solomon Islands	0.1
	11 Dec 2020 13:45	Nadi	Fiji	0.1
	12 Dec 2020 00:30	Nayavutoka	Fiji	0.1
	12 Dec 2020 00:15	Ndenimanu	Fiji	0.1
	11 Dec 2020 15:30	Namboutini	Fiji	0.1
	11 Dec 2020 15:30	Tawake	Fiji	0.1
	11 Dec 2020 20:45	Nafinotoga	Solomon Islands	0.1
	11 Dec 2020 20:45	Santa Ana I	Solomon Islands	0.1
	12 Dec 2020 18:30	Mamie	New Caledonia	0.1
	12 Dec 2020 00:00	Nauouo	Fiji	0.1
	12 Dec 2020 00:00	Levuka	Fiji	0.1
	12 Dec 2020 16:45	Prony	New Caledonia	0.1
	12 Dec 2020 16:45	Ouara	New Caledonia	0.1
	12 Dec 2020 16:30	Nde	New Caledonia	0.1
	12 Dec 2020 16:30	Paita	New Caledonia	0.1
	12 Dec 2020 16:30	Nouville	New Caledonia	0.1
	12 Dec 2020 16:30	Noumea	New Caledonia	0.1
	12 Dec 2020 16:30	Dumbea	New Caledonia	0.1
	12 Dec 2020 16:30	Comm. du Mont-Dore	New Caledonia	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.