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 18 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	97 km/h
Maximum storm surge	0.3 m (11 Dec 23:00 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
HWRF Current	97 km/h	0.3 m	27 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)

TOP

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 18:00 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	104	-	-	-	-	-	-	-
4	11 Dec 2020 18:00	194	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

TOP

Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 11 Dec 2020 18:00 UTC

Level	Country	Population
100-250 mm	Vanuatu	177
50-100 mm	Vanuatu	1,589

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	29	-	-	-	-	-	-	-
4	11 Dec 2020 18:00	1282	Few people			-	-	-	-	Vanuatu

Impact estimation for the next 72h

TOP

StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Moneo, New Caledonia. This height is estimated for 11 Dec 2020 23:00 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 11 Dec 2020 18:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	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 18:00	Lao	Fiji	0.3
	11 Dec 2020 18:00	Nailou	Fiji	0.3
	11 Dec 2020 18:00	Nawi	Fiji	0.3
	11 Dec 2020 18:00	Vunikura	Fiji	0.3
	11 Dec 2020 18:00	Napuka	Fiji	0.3
	11 Dec 2020 18:00	Lautoka	Fiji	0.3
	11 Dec 2020 18:00	Nailanga	Fiji	0.3
	11 Dec 2020 18:00	Sorokoba	Fiji	0.3
	11 Dec 2020 18:00	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 18:00	Natunuka	Fiji	0.2
	11 Dec 2020 18:00	Tavua	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 18:00	Rabulu	Fiji	0.2
	11 Dec 2020 18:00	Togowere	Fiji	0.2
	12 Dec 2020 00:00	Vangai	Fiji	0.2
	11 Dec 2020 19:45	Naindi	Fiji	0.2
	11 Dec 2020 19:45	Korosi	Fiji	0.2
	11 Dec 2020 19:45	Korotasere	Fiji	0.2
	11 Dec 2020 19:45	Naweni	Fiji	0.2
	11 Dec 2020 19:45	Nakarambo	Fiji	0.2
	11 Dec 2020 19:45	Viani	Fiji	0.2
	11 Dec 2020 19:15	Ndrekeniwai	Fiji	0.2
	11 Dec 2020 19:15	Mbangasau	Fiji	0.2
	11 Dec 2020 22:30	Kouaoua	New Caledonia	0.1
	11 Dec 2020 19:15	Malake	Fiji	0.1
	11 Dec 2020 19:15	Biagunu	Fiji	0.1
	11 Dec 2020 19:00	Mamie	New Caledonia	0.1
	11 Dec 2020 19:00	Yate-Village	New Caledonia	0.1
	11 Dec 2020 19:00	Waho	New Caledonia	0.1
	11 Dec 2020 23:30	Loanatom	Vanuatu	0.1
	11 Dec 2020 23:30	Loounemeloupang	Vanuatu	0.1
	11 Dec 2020 23:30	Loounimhapeun	Vanuatu	0.1
	11 Dec 2020 23:30	Laounalang	Vanuatu	0.1
	11 Dec 2020 23:30	Lowkahmal	Vanuatu	0.1
	11 Dec 2020 23:30	Lownepina	Vanuatu	0.1
	11 Dec 2020 23:30	Imwareupo	Vanuatu	0.1
	11 Dec 2020 23:30	Waisisi	Vanuatu	0.1
	11 Dec 2020 18:00	Soso	Fiji	0.1
	11 Dec 2020 18:00	Somosomo	Fiji	0.1
	11 Dec 2020 21:45	Matayalevu	Fiji	0.1
	11 Dec 2020 21:45	Matacawalevu	Fiji	0.1
	11 Dec 2020 21:45	Sisili	Fiji	0.1
	11 Dec 2020 18:00	Namaka	Fiji	0.1
	11 Dec 2020 20:30	Takataka	Solomon Islands	0.1
	11 Dec 2020 20:30	Ahia	Solomon Islands	0.1
	11 Dec 2020 20:00	Naua	Fiji	0.1
	11 Dec 2020 20:00	Namboutini	Fiji	0.1
	11 Dec 2020 20:00	Tawake	Fiji	0.1
	12 Dec 2020 00:00	Korovou	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
	11 Dec 2020 21:15	Nalauwaki	Fiji	0.1
	11 Dec 2020 19:45	Pek	Vanuatu	0.1
	11 Dec 2020 19:45	Crepeta	Vanuatu	0.1
	11 Dec 2020 19:45	Ngusui	Vanuatu	0.1
	11 Dec 2020 21:15	Solevu	Fiji	0.1
	11 Dec 2020 21:15	Rakiraki	Fiji	0.1
	11 Dec 2020 21:15	Vaileka	Fiji	0.1
	11 Dec 2020 21:15	Nanukuloa	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 00:00	Ucunivanua	Fiji	0.1
	11 Dec 2020 22:00	Ouasse	New Caledonia	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 20:30	Thio	New Caledonia	0.1
	11 Dec 2020 20:30	Saint-Gabriel	New Caledonia	0.1
	11 Dec 2020 20:30	Saint Roch	New Caledonia	0.1
	11 Dec 2020 21:15	Tavua	Fiji	0.1
	12 Dec 2020 00:00	Kasavu	Fiji	0.1
	12 Dec 2020 00:00	Naimasimasi	Fiji	0.1
	11 Dec 2020 22:15	Houone	New Caledonia	0.1
	11 Dec 2020 22:15	Tiabet	New Caledonia	0.1
	11 Dec 2020 18:00	Poindimie	New Caledonia	0.1
	11 Dec 2020 18:00	Ometteux	New Caledonia	0.1
	11 Dec 2020 18:00	Ponerihouen	New Caledonia	0.1
	11 Dec 2020 18:00	Bayes	New Caledonia	0.1
	11 Dec 2020 18:00	Mou	New Caledonia	0.1
	11 Dec 2020 22:30	Narano	Solomon Islands	0.1
	11 Dec 2020 22:30	Napurongo	Solomon Islands	0.1
	11 Dec 2020 22:30	Naganea	Solomon Islands	0.1
	11 Dec 2020 22:30	Nakuhu	Solomon Islands	0.1
	11 Dec 2020 22:30	Naparaohau	Solomon Islands	0.1
	11 Dec 2020 22:30	Naana	Solomon Islands	0.1
	11 Dec 2020 22:30	Mwaniwowo	Solomon Islands	0.1
	11 Dec 2020 22:30	Mwarairaru	Solomon Islands	0.1
	11 Dec 2020 22:30	Maniborkosi	Solomon Islands	0.1
	11 Dec 2020 22:30	Nasuragena	Solomon Islands	0.1
	11 Dec 2020 22:30	Funakumwa	Solomon Islands	0.1
	11 Dec 2020 22:30	Tawarogha	Solomon Islands	0.1
	11 Dec 2020 22:30	Geta	Solomon Islands	0.1
	11 Dec 2020 22:30	Star Harb	Solomon Islands	0.1
	11 Dec 2020 22:30	Mami	Solomon Islands	0.1
	11 Dec 2020 22:30	Fageifa	Solomon Islands	0.1
	11 Dec 2020 22:30	Ragapu	Solomon Islands	0.1
	11 Dec 2020 22:30	Ghupuna	Solomon Islands	0.1
	11 Dec 2020 21:30	Nasarowangga	Fiji	0.1
	12 Dec 2020 00:00	Nauouo	Fiji	0.1
	12 Dec 2020 00:00	Levuka	Fiji	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 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 20:00	Namukalau	Fiji	0.1
	11 Dec 2020 20:00	Nukusa	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 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	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 20:30	Kaokaona	Solomon Islands	0.1
	11 Dec 2020 20:30	Pamua	Solomon Islands	0.1
	11 Dec 2020 20:30	Kaonasughu	Solomon Islands	0.1
	11 Dec 2020 20:45	Manewaro	Solomon Islands	0.1
	11 Dec 2020 21:00	Malemgeulu	Solomon Islands	0.1
	11 Dec 2020 21:00	Menamini	Solomon Islands	0.1
	11 Dec 2020 21:00	Trevanion	Solomon Islands	0.1
	11 Dec 2020 21:00	Matamotu	Solomon Islands	0.1
	11 Dec 2020 21:00	Bema	Solomon Islands	0.1
	11 Dec 2020 21:00	Nemboe	Solomon Islands	0.1
	11 Dec 2020 21:00	Nudung	Solomon Islands	0.1
	11 Dec 2020 21:00	Noli	Solomon Islands	0.1
	11 Dec 2020 21:00	Nonea	Solomon Islands	0.1
	11 Dec 2020 21:00	Malue	Solomon Islands	0.1
	11 Dec 2020 21:00	Nevea	Solomon Islands	0.1
	11 Dec 2020 21:00	Neembuna	Solomon Islands	0.1
	11 Dec 2020 21:00	Menelu	Solomon Islands	0.1
	11 Dec 2020 21:00	Foa	Solomon Islands	0.1
	11 Dec 2020 21:00	Nuela	Solomon Islands	0.1
	11 Dec 2020 21:00	Masoko	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	Asimaenioha	Solomon Islands	0.1
	11 Dec 2020 20:45	Bia	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.