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

12 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
Exposed population	No people in Category 1 or higher
Maximum wind speed	101 km/h
Maximum storm surge	0.4 m (13 Dec 12:00 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	101 km/h	0.4 m	28 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

No people by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 12 Dec 2020 06:00 UTC

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
1	11 Dec 2020 00:00	65	-	-	-	-	-	-	-
2	11 Dec 2020 06:00	76	-	-	-	-	-	-	-
3	11 Dec 2020 12:00	90	-	-	-	-	-	-	-
4	11 Dec 2020 18:00	0	-	-	-	-	-	-	-
5	12 Dec 2020 00:00	0	-	-	-	-	-	-	-
6	12 Dec 2020 06:00	162	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 12 Dec 2020 06:00 UTC

Level	Country	Population
100-250 mm	Vanuatu	3,202
50-100 mm	Solomon Islands, Samoa, Vanuatu, Tonga, Fiji, New Caledonia	616,216	+
	Solomon Islands	817
	Samoa	29,201
	Vanuatu	46,850
	Tonga	15,937
	Fiji	513,994
	New Caledonia	9,417

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	11 Dec 2020 00:00	18	-	-	-	-	-	-	-
2	11 Dec 2020 06:00	21	-	-	-	-	-	-	-
3	11 Dec 2020 12:00	25	-	-	-	-	-	-	-
4	11 Dec 2020 18:00	0	-	-	-	-	-	-	-
5	12 Dec 2020 00:00	0	-	-	-	-	-	-	-
6	12 Dec 2020 06:00	666	3 thousand			-	-	-	-	Solomon Islands, Samoa, Vanuatu, Tonga, Fiji, 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 Koroinasolo, Fiji. This height is estimated for 13 Dec 2020 12:00 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 12 Dec 2020 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	13 Dec 2020 12:00	Koroinasolo	Fiji	0.4
	13 Dec 2020 12:00	Savu Sau	Fiji	0.4
	13 Dec 2020 12:00	Navinggiri	Fiji	0.4
	13 Dec 2020 12:00	Yangganga	Fiji	0.4
	13 Dec 2020 12:00	Nawailevu	Fiji	0.4
	13 Dec 2020 00:45	Lautoka	Fiji	0.4
	13 Dec 2020 00:45	Nailanga	Fiji	0.4
	13 Dec 2020 00:45	Sorokoba	Fiji	0.4
	13 Dec 2020 00:45	Ba	Fiji	0.4
	13 Dec 2020 00:45	Natunuka	Fiji	0.3
	13 Dec 2020 00:45	Tavua	Fiji	0.3
	13 Dec 2020 00:45	Rabulu	Fiji	0.3
	13 Dec 2020 00:45	Togowere	Fiji	0.3
	12 Dec 2020 17:45	Moneo	New Caledonia	0.3
	12 Dec 2020 17:45	Ho	New Caledonia	0.3
	12 Dec 2020 17:45	Meomo	New Caledonia	0.3
	12 Dec 2020 17:45	Houailou	New Caledonia	0.3
	12 Dec 2020 17:45	Ouakaya	New Caledonia	0.3
	12 Dec 2020 17:45	Poro	New Caledonia	0.3
	12 Dec 2020 11:00	Naindi	Fiji	0.3
	12 Dec 2020 11:00	Korosi	Fiji	0.3
	12 Dec 2020 11:00	Korotasere	Fiji	0.3
	12 Dec 2020 11:00	Naweni	Fiji	0.3
	12 Dec 2020 11:00	Nakarambo	Fiji	0.3
	12 Dec 2020 11:00	Viani	Fiji	0.3
	12 Dec 2020 14:00	Namaka	Fiji	0.3
	12 Dec 2020 10:45	Ndrekeniwai	Fiji	0.3
	12 Dec 2020 10:45	Mbangasau	Fiji	0.3
	14 Dec 2020 03:45	Lao	Fiji	0.2
	14 Dec 2020 03:45	Nailou	Fiji	0.2
	14 Dec 2020 03:45	Nawi	Fiji	0.2
	14 Dec 2020 03:45	Vunikura	Fiji	0.2
	14 Dec 2020 03:45	Napuka	Fiji	0.2
	12 Dec 2020 21:15	Kouaoua	New Caledonia	0.2
	12 Dec 2020 07:00	Poum-Plage	New Caledonia	0.2
	12 Dec 2020 07:00	Arama	New Caledonia	0.2
	12 Dec 2020 07:00	Pam	New Caledonia	0.2
	12 Dec 2020 23:30	Korovou	Fiji	0.2
	12 Dec 2020 23:30	Lodoni	Fiji	0.2
	12 Dec 2020 23:30	Lawaki	Fiji	0.2
	12 Dec 2020 23:30	Naingani	Fiji	0.2
	12 Dec 2020 23:30	Navuti	Fiji	0.2
	12 Dec 2020 23:30	Nasaga	Fiji	0.2
	12 Dec 2020 23:30	Rukuruku	Fiji	0.2
	12 Dec 2020 23:30	Lovoni	Fiji	0.2
	12 Dec 2020 17:30	Soso	Fiji	0.2
	12 Dec 2020 17:30	Somosomo	Fiji	0.2
	12 Dec 2020 23:30	Ucunivanua	Fiji	0.2
	14 Dec 2020 10:30	Kasavu	Fiji	0.2
	14 Dec 2020 10:30	Naimasimasi	Fiji	0.2
	12 Dec 2020 11:30	Umpon Mompu	Vanuatu	0.2
	12 Dec 2020 11:30	Potnarvin	Vanuatu	0.2
	12 Dec 2020 11:30	Yawisaghuwi	Vanuatu	0.2
	12 Dec 2020 11:30	Ipota	Vanuatu	0.2
	12 Dec 2020 11:30	Ifo	Vanuatu	0.2
	12 Dec 2020 17:30	Matayalevu	Fiji	0.2
	12 Dec 2020 17:30	Matacawalevu	Fiji	0.2
	12 Dec 2020 17:30	Sisili	Fiji	0.2
	12 Dec 2020 10:45	Malake	Fiji	0.2
	12 Dec 2020 10:45	Biagunu	Fiji	0.2
	12 Dec 2020 14:00	Solevu	Fiji	0.2
	12 Dec 2020 17:30	Nalauwaki	Fiji	0.2
	12 Dec 2020 09:15	Nasarowangga	Fiji	0.2
	12 Dec 2020 20:30	Takataka	Solomon Islands	0.2
	12 Dec 2020 20:30	Ahia	Solomon Islands	0.2
	13 Dec 2020 06:15	Poindimie	New Caledonia	0.2
	13 Dec 2020 06:15	Ometteux	New Caledonia	0.2
	13 Dec 2020 06:15	Ponerihouen	New Caledonia	0.2
	13 Dec 2020 06:15	Bayes	New Caledonia	0.2
	13 Dec 2020 06:15	Mou	New Caledonia	0.2
	12 Dec 2020 14:15	Tiabet	New Caledonia	0.2
	13 Dec 2020 00:15	Nausori	Fiji	0.2
	13 Dec 2020 00:15	Lokia	Fiji	0.2
	13 Dec 2020 00:15	Cautata	Fiji	0.2
	13 Dec 2020 00:15	Nasilai	Fiji	0.2
	13 Dec 2020 00:15	Dromuna	Fiji	0.2
	12 Dec 2020 23:30	Nauouo	Fiji	0.2
	12 Dec 2020 23:30	Levuka	Fiji	0.2
	14 Dec 2020 00:45	Natua	Fiji	0.2
	14 Dec 2020 00:45	Mbangata	Fiji	0.2
	14 Dec 2020 00:45	Savusavu	Fiji	0.2
	12 Dec 2020 14:00	Tavua	Fiji	0.2
	12 Dec 2020 10:00	Rakiraki	Fiji	0.2
	12 Dec 2020 10:00	Vaileka	Fiji	0.2
	12 Dec 2020 10:00	Nanukuloa	Fiji	0.2
	12 Dec 2020 10:00	Nasau	Fiji	0.2
	12 Dec 2020 14:15	Houone	New Caledonia	0.2
	12 Dec 2020 18:45	Ouanache	New Caledonia	0.1
	12 Dec 2020 18:45	Paola	New Caledonia	0.1
	12 Dec 2020 18:45	Vieux Tuho	New Caledonia	0.1
	12 Dec 2020 18:45	Touho	New Caledonia	0.1
	12 Dec 2020 18:45	Kokengone	New Caledonia	0.1
	13 Dec 2020 06:45	Mamie	New Caledonia	0.1
	13 Dec 2020 06:45	Yate-Village	New Caledonia	0.1
	13 Dec 2020 06:45	Waho	New Caledonia	0.1
	13 Dec 2020 11:00	Vunivatu	Fiji	0.1
	13 Dec 2020 11:00	Navukembuli	Fiji	0.1
	13 Dec 2020 11:00	Naua	Fiji	0.1
	13 Dec 2020 11:00	Namukalau	Fiji	0.1
	13 Dec 2020 14:30	Poum	New Caledonia	0.1
	12 Dec 2020 21:45	Loanatom	Vanuatu	0.1
	12 Dec 2020 21:45	Loounemeloupang	Vanuatu	0.1
	12 Dec 2020 21:45	Loounimhapeun	Vanuatu	0.1
	12 Dec 2020 21:45	Laounalang	Vanuatu	0.1
	12 Dec 2020 21:45	Lowkahmal	Vanuatu	0.1
	12 Dec 2020 21:45	Lownepina	Vanuatu	0.1
	12 Dec 2020 21:45	Imwareupo	Vanuatu	0.1
	12 Dec 2020 21:45	Waisisi	Vanuatu	0.1
	13 Dec 2020 06:45	Thio	New Caledonia	0.1
	13 Dec 2020 06:45	Saint-Gabriel	New Caledonia	0.1
	13 Dec 2020 06:45	Saint Roch	New Caledonia	0.1
	12 Dec 2020 21:30	Panane	New Caledonia	0.1
	12 Dec 2020 21:30	Mouane	New Caledonia	0.1
	12 Dec 2020 21:30	Ono	New Caledonia	0.1
	12 Dec 2020 21:30	Wala	New Caledonia	0.1
	12 Dec 2020 21:30	Bweo	New Caledonia	0.1
	12 Dec 2020 21:30	Pairome	New Caledonia	0.1
	13 Dec 2020 02:15	Nanduri	Fiji	0.1
	13 Dec 2020 02:15	Vatutandova	Fiji	0.1
	13 Dec 2020 02:15	Nasea	Fiji	0.1
	12 Dec 2020 17:15	Nagumu	Fiji	0.1
	13 Dec 2020 16:15	Nabouwalu	Fiji	0.1
	13 Dec 2020 16:15	Thavanga	Fiji	0.1
	13 Dec 2020 16:15	Ndaria	Fiji	0.1
	13 Dec 2020 16:15	Rave-rave	Fiji	0.1
	12 Dec 2020 07:30	Vangai	Fiji	0.1
	12 Dec 2020 17:30	Nacula	Fiji	0.1
	12 Dec 2020 17:30	Navotua	Fiji	0.1
	12 Dec 2020 17:30	Tamusua	Fiji	0.1
	13 Dec 2020 18:30	Ouasse	New Caledonia	0.1
	13 Dec 2020 18:45	Goro	New Caledonia	0.1
	13 Dec 2020 00:15	Ndenimanu	Fiji	0.1
	13 Dec 2020 00:15	Ndalomo	Fiji	0.1
	12 Dec 2020 17:30	Teci	Fiji	0.1
	14 Dec 2020 18:00	Gasele	Fiji	0.1
	14 Dec 2020 18:00	Soso	Fiji	0.1
	14 Dec 2020 18:00	Kavala	Fiji	0.1
	14 Dec 2020 18:00	Kaduvu	Fiji	0.1
	14 Dec 2020 18:00	Nukuvou	Fiji	0.1
	14 Dec 2020 18:00	Nabouwalu	Fiji	0.1
	14 Dec 2020 18:00	Vabea	Fiji	0.1
	13 Dec 2020 16:30	Gadji	New Caledonia	0.1
	13 Dec 2020 16:30	Kuto	New Caledonia	0.1
	13 Dec 2020 16:30	Wapan	New Caledonia	0.1
	13 Dec 2020 16:30	Vao	New Caledonia	0.1
	13 Dec 2020 08:00	Nde	New Caledonia	0.1
	13 Dec 2020 08:00	Paita	New Caledonia	0.1
	13 Dec 2020 08:00	Nouville	New Caledonia	0.1
	13 Dec 2020 08:00	Noumea	New Caledonia	0.1
	13 Dec 2020 08:00	Dumbea	New Caledonia	0.1
	13 Dec 2020 08:00	Comm. du Mont-Dore	New Caledonia	0.1
	12 Dec 2020 06:15	Navindamu	Fiji	0.1
	14 Dec 2020 00:45	Ndawara	Fiji	0.1
	14 Dec 2020 00:45	Waisa	Fiji	0.1
	12 Dec 2020 15:00	Saint-Denis	New Caledonia	0.1
	12 Dec 2020 17:30	Mbukama	Fiji	0.1
	12 Dec 2020 17:30	Yasawairara	Fiji	0.1
	12 Dec 2020 20:45	Haarumou	Solomon Islands	0.1
	12 Dec 2020 20:45	Ahenawai	Solomon Islands	0.1
	12 Dec 2020 20:45	Manuagere	Solomon Islands	0.1
	12 Dec 2020 20:45	Hada	Solomon Islands	0.1
	12 Dec 2020 20:45	Tawaiabu	Solomon Islands	0.1
	12 Dec 2020 20:45	Tarosi	Solomon Islands	0.1
	12 Dec 2020 20:45	Ubuna	Solomon Islands	0.1
	12 Dec 2020 20:45	Maneoura	Solomon Islands	0.1
	12 Dec 2020 20:45	Maranu'u	Solomon Islands	0.1
	12 Dec 2020 20:45	Heuru	Solomon Islands	0.1
	12 Dec 2020 20:45	Asimaenioha	Solomon Islands	0.1
	12 Dec 2020 20:45	Palasuu	Solomon Islands	0.1
	12 Dec 2020 20:45	Oneoia	Solomon Islands	0.1
	12 Dec 2020 20:45	Suuruaharau	Solomon Islands	0.1
	12 Dec 2020 20:45	Onehatare	Solomon Islands	0.1
	12 Dec 2020 20:45	Bia	Solomon Islands	0.1
	12 Dec 2020 20:45	Etamarorai	Solomon Islands	0.1
	12 Dec 2020 20:45	Wango	Solomon Islands	0.1
	12 Dec 2020 20:45	Manewaro	Solomon Islands	0.1
	12 Dec 2020 20:45	Fagani	Solomon Islands	0.1
	12 Dec 2020 13:00	Malapu	Solomon Islands	0.1
	12 Dec 2020 13:00	Tuo	Solomon Islands	0.1
	12 Dec 2020 13:00	Lomlom	Solomon Islands	0.1
	12 Dec 2020 13:00	Namania	Solomon Islands	0.1
	12 Dec 2020 13:00	Nuali	Solomon Islands	0.1
	12 Dec 2020 13:00	Lipe	Solomon Islands	0.1
	12 Dec 2020 20:45	Anoni'usu	Solomon Islands	0.1
	12 Dec 2020 20:45	Saa	Solomon Islands	0.1
	12 Dec 2020 20:45	Umara	Solomon Islands	0.1
	13 Dec 2020 08:00	Paagoumene	New Caledonia	0.1
	13 Dec 2020 08:00	Koumac	New Caledonia	0.1
	13 Dec 2020 08:00	Kaala-Gomen	New Caledonia	0.1
	12 Dec 2020 20:45	Bio I	Solomon Islands	0.1
	12 Dec 2020 20:45	Sungasau	Solomon Islands	0.1
	12 Dec 2020 20:45	Suenn	Solomon Islands	0.1
	12 Dec 2020 20:45	Tawarodo	Solomon Islands	0.1
	12 Dec 2020 20:45	Hulihale	Solomon Islands	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.