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

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	Fiji
Exposed population	No people in Category 1 or higher
Maximum wind speed	76 km/h
Maximum storm surge	0.3 m (11 Dec 10:15 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	76 km/h	0.3 m	21 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

Up to 2 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	1,879

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	144	-		-	-	-	-	-	Fiji

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
50-100 mm	Fiji	2,164

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	1511	-		-	-	-	-	-	Fiji

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Lautoka, Fiji. This height is estimated for 11 Dec 2020 10:15 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 10:15	Lautoka	Fiji	0.3
	11 Dec 2020 10:15	Nailanga	Fiji	0.3
	11 Dec 2020 10:15	Sorokoba	Fiji	0.3
	11 Dec 2020 10:15	Ba	Fiji	0.3
	11 Dec 2020 16:15	Lao	Fiji	0.3
	11 Dec 2020 16:15	Nailou	Fiji	0.3
	11 Dec 2020 16:15	Nawi	Fiji	0.3
	11 Dec 2020 16:15	Vunikura	Fiji	0.3
	11 Dec 2020 16:15	Napuka	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 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 10:15	Natunuka	Fiji	0.2
	11 Dec 2020 14:00	Namaka	Fiji	0.2
	11 Dec 2020 17:45	Tavua	Fiji	0.2
	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 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 13:45	Rabulu	Fiji	0.2
	11 Dec 2020 13:45	Togowere	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 06:45	Poum-Plage	New Caledonia	0.2
	11 Dec 2020 06:45	Arama	New Caledonia	0.2
	11 Dec 2020 06:45	Pam	New Caledonia	0.2
	11 Dec 2020 13:45	Nalauwaki	Fiji	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 14:00	Solevu	Fiji	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
	11 Dec 2020 14:00	Tavua	Fiji	0.2
	11 Dec 2020 17:30	Nacula	Fiji	0.1
	11 Dec 2020 17:30	Navotua	Fiji	0.1
	11 Dec 2020 17:30	Tamusua	Fiji	0.1
	11 Dec 2020 17:30	Teci	Fiji	0.1
	12 Dec 2020 00:30	Kasavu	Fiji	0.1
	12 Dec 2020 00:30	Nausori	Fiji	0.1
	12 Dec 2020 00:30	Korovou	Fiji	0.1
	12 Dec 2020 00:30	Lokia	Fiji	0.1
	12 Dec 2020 00:30	Naimasimasi	Fiji	0.1
	12 Dec 2020 00:30	Ucunivanua	Fiji	0.1
	12 Dec 2020 00:30	Cautata	Fiji	0.1
	12 Dec 2020 00:30	Nasilai	Fiji	0.1
	12 Dec 2020 00:30	Dromuna	Fiji	0.1
	11 Dec 2020 17:00	Lodoni	Fiji	0.1
	11 Dec 2020 17:00	Lawaki	Fiji	0.1
	11 Dec 2020 17:00	Naingani	Fiji	0.1
	11 Dec 2020 17:00	Navuti	Fiji	0.1
	11 Dec 2020 17:00	Nasaga	Fiji	0.1
	11 Dec 2020 17:00	Rukuruku	Fiji	0.1
	11 Dec 2020 17:00	Lovoni	Fiji	0.1
	11 Dec 2020 10:00	Vangai	Fiji	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 09:30	Nasarowangga	Fiji	0.1
	12 Dec 2020 18:30	Tiabet	New Caledonia	0.1
	12 Dec 2020 18:30	Poum	New Caledonia	0.1
	11 Dec 2020 22:30	Houone	New Caledonia	0.1
	11 Dec 2020 11:45	Narano	Solomon Islands	0.1
	11 Dec 2020 11:45	Napurongo	Solomon Islands	0.1
	11 Dec 2020 11:45	Naganea	Solomon Islands	0.1
	11 Dec 2020 11:45	Nakuhu	Solomon Islands	0.1
	11 Dec 2020 11:45	Naparaohau	Solomon Islands	0.1
	11 Dec 2020 11:45	Naana	Solomon Islands	0.1
	11 Dec 2020 11:45	Mwaniwowo	Solomon Islands	0.1
	11 Dec 2020 11:45	Mwarairaru	Solomon Islands	0.1
	11 Dec 2020 11:45	Maniborkosi	Solomon Islands	0.1
	11 Dec 2020 11:45	Nasuragena	Solomon Islands	0.1
	11 Dec 2020 11:45	Funakumwa	Solomon Islands	0.1
	11 Dec 2020 11:45	Tawarogha	Solomon Islands	0.1
	11 Dec 2020 11:45	Geta	Solomon Islands	0.1
	11 Dec 2020 11:45	Star Harb	Solomon Islands	0.1
	11 Dec 2020 11:45	Mami	Solomon Islands	0.1
	11 Dec 2020 11:45	Fageifa	Solomon Islands	0.1
	11 Dec 2020 11:45	Ragapu	Solomon Islands	0.1
	11 Dec 2020 11:45	Ghupuna	Solomon Islands	0.1
	11 Dec 2020 11:30	Takataka	Solomon Islands	0.1
	11 Dec 2020 11:30	Ahia	Solomon Islands	0.1
	12 Dec 2020 09:45	Loanatom	Vanuatu	0.1
	12 Dec 2020 09:45	Loounemeloupang	Vanuatu	0.1
	12 Dec 2020 09:45	Loounimhapeun	Vanuatu	0.1
	12 Dec 2020 09:45	Laounalang	Vanuatu	0.1
	12 Dec 2020 09:45	Lowkahmal	Vanuatu	0.1
	12 Dec 2020 09:45	Lownepina	Vanuatu	0.1
	12 Dec 2020 09:45	Imwareupo	Vanuatu	0.1
	12 Dec 2020 09:45	Waisisi	Vanuatu	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
	11 Dec 2020 17:45	Poindimie	New Caledonia	0.1
	11 Dec 2020 17:45	Ometteux	New Caledonia	0.1
	11 Dec 2020 17:45	Ponerihouen	New Caledonia	0.1
	11 Dec 2020 17:45	Bayes	New Caledonia	0.1
	11 Dec 2020 17:45	Mou	New Caledonia	0.1
	11 Dec 2020 09:45	Nasau	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	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
	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
	12 Dec 2020 22:30	Yate-Village	New Caledonia	0.1
	12 Dec 2020 22:30	Waho	New Caledonia	0.1
	12 Dec 2020 22:30	Goro	New Caledonia	0.1
	12 Dec 2020 18:30	Mamie	New Caledonia	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
	11 Dec 2020 15:15	Namboutini	Fiji	0.1
	11 Dec 2020 15:15	Tawake	Fiji	0.1
	11 Dec 2020 06:00	Ndalomo	Fiji	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	Fagani	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 22:00	Pek	Vanuatu	0.1
	11 Dec 2020 22:00	Crepeta	Vanuatu	0.1
	11 Dec 2020 22:00	Ngusui	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 06:15	Navindamu	Fiji	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 06:00	Ndenimanu	Fiji	0.1
	11 Dec 2020 20:45	Manewaro	Solomon Islands	0.1
	11 Dec 2020 20:30	Su'utaluhia	Solomon Islands	0.1
	11 Dec 2020 20:30	Ulawa I	Solomon Islands	0.1
	11 Dec 2020 20:30	Mwarada	Solomon Islands	0.1
	11 Dec 2020 20:30	Ahia	Solomon Islands	0.1
	11 Dec 2020 20:30	Taheramo	Solomon Islands	0.1
	11 Dec 2020 20:30	Sioduru	Solomon Islands	0.1
	11 Dec 2020 20:30	Ngorangora	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	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 21:00	Ouasse	New Caledonia	0.1
	11 Dec 2020 20:30	Tetere	Solomon Islands	0.1
	11 Dec 2020 20:30	Bia	Solomon Islands	0.1
	11 Dec 2020 08:45	Ndawara	Fiji	0.1
	11 Dec 2020 08:45	Waisa	Fiji	0.1
	11 Dec 2020 17:15	Nadi	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	Palasuu	Solomon Islands	0.1
	11 Dec 2020 20:45	Saa	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.