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 12 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

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	HWRF
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	104 km/h
Maximum storm surge	0.3 m (11 Dec 17:45 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
HWRF Current	104 km/h	0.3 m	29 mm	0.5
HWRF Overall	162 km/h	0.5 m	1023 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

162 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 11 Dec 2020 12:00 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	176	-	-	-	-	-	-	-

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 12:00 UTC

Level	Country	Population
100-250 mm	Fiji	161
50-100 mm	Vanuatu, Fiji	5,292	+
	Vanuatu	3,074
	Fiji	2,218

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	1288	Few people			-	-	-	-	Vanuatu, Fiji

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Lao, Fiji. This height is estimated for 11 Dec 2020 17:45 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 11 Dec 2020 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	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 23:00	Moneo	New Caledonia	0.3
	11 Dec 2020 23:00	Ho	New Caledonia	0.3
	11 Dec 2020 23:00	Meomo	New Caledonia	0.3
	11 Dec 2020 23:00	Houailou	New Caledonia	0.3
	11 Dec 2020 23:00	Ouakaya	New Caledonia	0.3
	11 Dec 2020 23:00	Poro	New Caledonia	0.3
	11 Dec 2020 17:45	Lautoka	Fiji	0.3
	11 Dec 2020 17:45	Nailanga	Fiji	0.3
	11 Dec 2020 17:45	Sorokoba	Fiji	0.3
	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
	11 Dec 2020 17:45	Natunuka	Fiji	0.3
	11 Dec 2020 17:45	Tavua	Fiji	0.3
	11 Dec 2020 14:00	Namaka	Fiji	0.3
	12 Dec 2020 06:30	Ouanache	New Caledonia	0.2
	12 Dec 2020 06:30	Paola	New Caledonia	0.2
	12 Dec 2020 06:30	Vieux Tuho	New Caledonia	0.2
	12 Dec 2020 06:30	Touho	New Caledonia	0.2
	12 Dec 2020 06:30	Kokengone	New Caledonia	0.2
	11 Dec 2020 15:30	Naindi	Fiji	0.2
	11 Dec 2020 15:30	Korosi	Fiji	0.2
	11 Dec 2020 15:30	Korotasere	Fiji	0.2
	11 Dec 2020 15:30	Naweni	Fiji	0.2
	11 Dec 2020 15:30	Nakarambo	Fiji	0.2
	11 Dec 2020 15:30	Viani	Fiji	0.2
	12 Dec 2020 00:45	Rabulu	Fiji	0.2
	12 Dec 2020 00:45	Togowere	Fiji	0.2
	11 Dec 2020 13:45	Soso	Fiji	0.2
	11 Dec 2020 13:45	Somosomo	Fiji	0.2
	11 Dec 2020 13:45	Matayalevu	Fiji	0.2
	11 Dec 2020 13:45	Matacawalevu	Fiji	0.2
	11 Dec 2020 13:45	Sisili	Fiji	0.2
	11 Dec 2020 14:00	Solevu	Fiji	0.2
	11 Dec 2020 13:45	Nalauwaki	Fiji	0.2
	11 Dec 2020 15:45	Ndrekeniwai	Fiji	0.2
	11 Dec 2020 15:45	Mbangasau	Fiji	0.2
	12 Dec 2020 18:45	Yate-Village	New Caledonia	0.2
	12 Dec 2020 18:45	Waho	New Caledonia	0.2
	12 Dec 2020 18:45	Goro	New Caledonia	0.2
	11 Dec 2020 17:30	Rakiraki	Fiji	0.2
	11 Dec 2020 17:30	Vaileka	Fiji	0.2
	11 Dec 2020 17:30	Nanukuloa	Fiji	0.2
	12 Dec 2020 09:15	Kouaoua	New Caledonia	0.2
	11 Dec 2020 14:45	Malake	Fiji	0.2
	11 Dec 2020 14:45	Biagunu	Fiji	0.2
	11 Dec 2020 16:15	Vangai	Fiji	0.2
	11 Dec 2020 14:00	Tavua	Fiji	0.2
	11 Dec 2020 17:15	Korovou	Fiji	0.2
	11 Dec 2020 17:15	Lodoni	Fiji	0.2
	11 Dec 2020 17:15	Lawaki	Fiji	0.2
	11 Dec 2020 17:15	Ucunivanua	Fiji	0.2
	11 Dec 2020 17:15	Naingani	Fiji	0.2
	11 Dec 2020 17:15	Navuti	Fiji	0.2
	11 Dec 2020 17:15	Nasaga	Fiji	0.2
	11 Dec 2020 17:15	Rukuruku	Fiji	0.2
	11 Dec 2020 17:15	Lovoni	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
	12 Dec 2020 00:15	Kasavu	Fiji	0.1
	12 Dec 2020 00:15	Nausori	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	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 20:00	Namboutini	Fiji	0.1
	11 Dec 2020 20:00	Naua	Fiji	0.1
	11 Dec 2020 20:00	Tawake	Fiji	0.1
	12 Dec 2020 05:30	Pek	Vanuatu	0.1
	12 Dec 2020 05:30	Crepeta	Vanuatu	0.1
	12 Dec 2020 05:30	Ngusui	Vanuatu	0.1
	12 Dec 2020 20:00	Takataka	Solomon Islands	0.1
	12 Dec 2020 20:00	Ahia	Solomon Islands	0.1
	11 Dec 2020 19:00	Mamie	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
	12 Dec 2020 18:30	Saint-Denis	New Caledonia	0.1
	12 Dec 2020 18:30	Poindimie	New Caledonia	0.1
	12 Dec 2020 18:30	Ometteux	New Caledonia	0.1
	12 Dec 2020 18:30	Bayes	New Caledonia	0.1
	12 Dec 2020 18:15	Loanatom	Vanuatu	0.1
	12 Dec 2020 18:15	Loounemeloupang	Vanuatu	0.1
	12 Dec 2020 18:15	Loounimhapeun	Vanuatu	0.1
	12 Dec 2020 18:15	Laounalang	Vanuatu	0.1
	12 Dec 2020 18:15	Lowkahmal	Vanuatu	0.1
	12 Dec 2020 18:15	Lownepina	Vanuatu	0.1
	12 Dec 2020 18:15	Imwareupo	Vanuatu	0.1
	12 Dec 2020 18:15	Waisisi	Vanuatu	0.1
	12 Dec 2020 20:30	Narano	Solomon Islands	0.1
	12 Dec 2020 20:30	Napurongo	Solomon Islands	0.1
	12 Dec 2020 20:30	Naganea	Solomon Islands	0.1
	12 Dec 2020 20:30	Nakuhu	Solomon Islands	0.1
	12 Dec 2020 20:30	Naparaohau	Solomon Islands	0.1
	12 Dec 2020 20:30	Naana	Solomon Islands	0.1
	12 Dec 2020 20:30	Mwaniwowo	Solomon Islands	0.1
	12 Dec 2020 20:30	Mwarairaru	Solomon Islands	0.1
	12 Dec 2020 20:30	Maniborkosi	Solomon Islands	0.1
	12 Dec 2020 20:30	Nasuragena	Solomon Islands	0.1
	12 Dec 2020 20:30	Funakumwa	Solomon Islands	0.1
	12 Dec 2020 20:30	Tawarogha	Solomon Islands	0.1
	12 Dec 2020 20:30	Geta	Solomon Islands	0.1
	12 Dec 2020 20:30	Star Harb	Solomon Islands	0.1
	12 Dec 2020 20:30	Mami	Solomon Islands	0.1
	12 Dec 2020 20:30	Fageifa	Solomon Islands	0.1
	12 Dec 2020 20:30	Ragapu	Solomon Islands	0.1
	12 Dec 2020 20:30	Ghupuna	Solomon Islands	0.1
	11 Dec 2020 17:00	Nasau	Fiji	0.1
	11 Dec 2020 17:30	Mbukama	Fiji	0.1
	11 Dec 2020 17:30	Yasawairara	Fiji	0.1
	12 Dec 2020 21:15	Abnetare	Vanuatu	0.1
	12 Dec 2020 21:15	Segond	Vanuatu	0.1
	12 Dec 2020 21:15	Luganville	Vanuatu	0.1
	12 Dec 2020 21:15	Saraotou	Vanuatu	0.1
	12 Dec 2020 21:15	Palikoulo	Vanuatu	0.1
	11 Dec 2020 22:00	Poum-Plage	New Caledonia	0.1
	11 Dec 2020 22:00	Arama	New Caledonia	0.1
	11 Dec 2020 22:00	Pam	New Caledonia	0.1
	11 Dec 2020 17:00	Nauouo	Fiji	0.1
	11 Dec 2020 17:00	Levuka	Fiji	0.1
	11 Dec 2020 16:15	Natua	Fiji	0.1
	11 Dec 2020 16:15	Mbangata	Fiji	0.1
	11 Dec 2020 16:15	Savusavu	Fiji	0.1
	12 Dec 2020 09:45	Tiabet	New Caledonia	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
	11 Dec 2020 20:00	Namukalau	Fiji	0.1
	11 Dec 2020 20:00	Nukusa	Fiji	0.1
	12 Dec 2020 18:30	Poum	New Caledonia	0.1
	11 Dec 2020 22:15	Houone	New Caledonia	0.1
	11 Dec 2020 22:00	Ouasse	New Caledonia	0.1
	11 Dec 2020 20:45	Nanduri	Fiji	0.1
	11 Dec 2020 20:45	Vatutandova	Fiji	0.1
	11 Dec 2020 20:45	Nasea	Fiji	0.1
	11 Dec 2020 18:00	Ponerihouen	New Caledonia	0.1
	11 Dec 2020 18:00	Mou	New Caledonia	0.1
	11 Dec 2020 21:30	Nasarowangga	Fiji	0.1
	12 Dec 2020 16:45	Nouville	New Caledonia	0.1
	12 Dec 2020 16:45	Noumea	New Caledonia	0.1
	12 Dec 2020 16:45	Plum	New Caledonia	0.1
	11 Dec 2020 21:30	Panane	New Caledonia	0.1
	11 Dec 2020 21:30	Mouane	New Caledonia	0.1
	11 Dec 2020 21:30	Ono	New Caledonia	0.1
	11 Dec 2020 21:30	Wala	New Caledonia	0.1
	11 Dec 2020 21:30	Bweo	New Caledonia	0.1
	11 Dec 2020 21:30	Pairome	New Caledonia	0.1
	11 Dec 2020 13:45	Nadi	Fiji	0.1
	11 Dec 2020 17:30	Ndenimanu	Fiji	0.1
	12 Dec 2020 16:45	Dumbea	New Caledonia	0.1
	12 Dec 2020 16:45	Comm. du Mont-Dore	New Caledonia	0.1
	12 Dec 2020 16:45	Saint-Louis	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	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 20:45	Etamarorai	Solomon Islands	0.1
	11 Dec 2020 20:45	Wango	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	Fagani	Solomon Islands	0.1
	12 Dec 2020 20:15	Kaokaona	Solomon Islands	0.1
	12 Dec 2020 20:15	Pamua	Solomon Islands	0.1
	12 Dec 2020 20:15	Kaonasughu	Solomon Islands	0.1
	11 Dec 2020 16:15	Ndawara	Fiji	0.1
	11 Dec 2020 16:15	Waisa	Fiji	0.1
	11 Dec 2020 21:15	Souleisere	Vanuatu	0.1
	11 Dec 2020 21:15	Piapouria	Vanuatu	0.1
	11 Dec 2020 21:15	Mae	Vanuatu	0.1
	11 Dec 2020 21:15	Tourebiou	Vanuatu	0.1
	11 Dec 2020 21:15	Atsaritibi	Vanuatu	0.1
	11 Dec 2020 21:15	Robertsons	Vanuatu	0.1
	11 Dec 2020 21:15	Bakakara	Vanuatu	0.1
	11 Dec 2020 21:15	Terou	Vanuatu	0.1
	11 Dec 2020 21:15	Worovok	Vanuatu	0.1
	11 Dec 2020 21:15	Ladhu	Vanuatu	0.1
	11 Dec 2020 21:15	Lavatavo	Vanuatu	0.1
	11 Dec 2020 21:15	Iakobone	Vanuatu	0.1
	11 Dec 2020 20:45	Manewaro	Solomon Islands	0.1
	11 Dec 2020 13:00	Levonu	Vanuatu	0.1
	11 Dec 2020 13:00	Avira	Vanuatu	0.1
	11 Dec 2020 17:45	Ndalomo	Fiji	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 20:00	Nambouono	Fiji	0.1
	14 Dec 2020 08:45	Paita	New Caledonia	0.1
	12 Dec 2020 17:00	Prony	New Caledonia	0.1
	12 Dec 2020 17:00	Ouara	New Caledonia	0.1
	11 Dec 2020 20:45	Bia	Solomon Islands	0.1
	11 Dec 2020 18:00	Navindamu	Fiji	0.1
	11 Dec 2020 18:00	Nagumu	Fiji	0.1
	11 Dec 2020 20:45	Tetere	Solomon Islands	0.1
	11 Dec 2020 20:45	Suuruaharau	Solomon Islands	0.1
	11 Dec 2020 20:45	Onehatare	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.