Overall Green alert Tropical Cyclone for FOUR-20
in , Fiji, Vanuatu
12 Dec 2020 12 UTC
click on to select bulletin time
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 12:00 UTC

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
GREEN 1 11 Dec 2020 00:00 65 - - - - - - -
GREEN 2 11 Dec 2020 06:00 76 - - - - - - -
GREEN 3 11 Dec 2020 12:00 90 - - - - - - -
GREEN 4 11 Dec 2020 18:00 0 - - - - - - -
GREEN 5 12 Dec 2020 00:00 0 - - - - - - -
GREEN 6 12 Dec 2020 06:00 101 - - - - - - -
GREEN 7 12 Dec 2020 12:00 126 - - - - - - -
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 12:00 UTC
LevelCountryPopulation 
100-250 mmVanuatu3,955 
50-100 mmSolomon Islands, Samoa, Vanuatu, Tonga, Fiji, New Caledonia254,204
+
Solomon Islands1,063 
Samoa46,287 
Vanuatu62,438 
Tonga16,487 
Fiji116,723 
New Caledonia11,206 

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
Blue 1 11 Dec 2020 00:00 18 - - - - - - -
Blue 2 11 Dec 2020 06:00 21 - - - - - - -
Blue 3 11 Dec 2020 12:00 25 - - - - - - -
Blue 4 11 Dec 2020 18:00 0 - - - - - - -
Blue 5 12 Dec 2020 00:00 0 - - - - - - -
Blue 6 12 Dec 2020 06:00 28 - - - - - - -
Blue 7 12 Dec 2020 12:00 571 4 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 12:00 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 14:00 Namaka Fiji  0.3
12 Dec 2020 15:15 Naindi Fiji  0.2
12 Dec 2020 15:15 Korosi Fiji  0.2
12 Dec 2020 15:15 Korotasere Fiji  0.2
12 Dec 2020 15:15 Naweni Fiji  0.2
12 Dec 2020 15:15 Nakarambo Fiji  0.2
12 Dec 2020 15:15 Viani Fiji  0.2
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
13 Dec 2020 03:45 Korovou Fiji  0.2
13 Dec 2020 03:45 Lodoni Fiji  0.2
13 Dec 2020 03:45 Lawaki Fiji  0.2
13 Dec 2020 03:45 Naingani Fiji  0.2
13 Dec 2020 03:45 Navuti Fiji  0.2
13 Dec 2020 03:45 Nasaga Fiji  0.2
13 Dec 2020 03:45 Rukuruku Fiji  0.2
13 Dec 2020 03:45 Lovoni Fiji  0.2
13 Dec 2020 04:00 Ucunivanua Fiji  0.2
13 Dec 2020 03:45 Kasavu Fiji  0.2
13 Dec 2020 03:45 Naimasimasi Fiji  0.2
12 Dec 2020 21:15 Kouaoua New Caledonia  0.2
12 Dec 2020 17:30 Soso Fiji  0.2
12 Dec 2020 17:30 Somosomo Fiji  0.2
12 Dec 2020 20:30 Takataka Solomon Islands  0.2
12 Dec 2020 20:30 Ahia Solomon Islands  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 14:15 Umpon Mompu Vanuatu  0.2
12 Dec 2020 14:15 Potnarvin Vanuatu  0.2
12 Dec 2020 14:15 Yawisaghuwi Vanuatu  0.2
12 Dec 2020 14:15 Ipota Vanuatu  0.2
12 Dec 2020 14:15 Ifo Vanuatu  0.2
12 Dec 2020 17:30 Nalauwaki Fiji  0.2
12 Dec 2020 14:00 Solevu 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 21:30 Rakiraki Fiji  0.2
12 Dec 2020 21:30 Vaileka Fiji  0.2
12 Dec 2020 21:30 Nanukuloa Fiji  0.2
12 Dec 2020 19:30 Ndrekeniwai Fiji  0.2
12 Dec 2020 19:30 Mbangasau Fiji  0.2
13 Dec 2020 12:00 Nasarowangga Fiji  0.2
12 Dec 2020 23:30 Nauouo Fiji  0.2
12 Dec 2020 23:30 Levuka Fiji  0.2
12 Dec 2020 17:30 Tavua Fiji  0.2
12 Dec 2020 18:45 Ouanache New Caledonia  0.2
12 Dec 2020 18:45 Paola New Caledonia  0.2
12 Dec 2020 18:45 Vieux Tuho New Caledonia  0.2
12 Dec 2020 18:45 Touho New Caledonia  0.2
12 Dec 2020 18:45 Kokengone New Caledonia  0.2
12 Dec 2020 14:15 Tiabet New Caledonia  0.2
13 Dec 2020 06:00 Poindimie New Caledonia  0.2
13 Dec 2020 06:00 Ometteux New Caledonia  0.2
13 Dec 2020 06:00 Ponerihouen New Caledonia  0.2
13 Dec 2020 06:00 Bayes New Caledonia  0.2
13 Dec 2020 06:00 Mou New Caledonia  0.2
12 Dec 2020 15:15 Poum-Plage New Caledonia  0.2
12 Dec 2020 15:15 Arama New Caledonia  0.2
12 Dec 2020 15:15 Pam New Caledonia  0.2
13 Dec 2020 14:00 Houone New Caledonia  0.2
13 Dec 2020 00:15 Nausori Fiji  0.1
13 Dec 2020 00:15 Lokia Fiji  0.1
13 Dec 2020 00:15 Cautata Fiji  0.1
13 Dec 2020 00:15 Nasilai Fiji  0.1
13 Dec 2020 00:15 Dromuna Fiji  0.1
12 Dec 2020 18:00 Nanduri Fiji  0.1
12 Dec 2020 18:00 Vatutandova Fiji  0.1
12 Dec 2020 18:00 Nasea Fiji  0.1
12 Dec 2020 17:00 Vunivatu Fiji  0.1
12 Dec 2020 17:00 Navukembuli Fiji  0.1
12 Dec 2020 17:00 Naua Fiji  0.1
12 Dec 2020 17:00 Namukalau 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
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 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 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 17:15 Nagumu Fiji  0.1
13 Dec 2020 15:15 Nasau Fiji  0.1
12 Dec 2020 15:30 Thio New Caledonia  0.1
12 Dec 2020 15:30 Saint-Gabriel New Caledonia  0.1
12 Dec 2020 15:30 Saint Roch New Caledonia  0.1
13 Dec 2020 18:30 Ouasse New Caledonia  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
12 Dec 2020 14:45 Malake Fiji  0.1
12 Dec 2020 14:45 Biagunu 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
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 00:15 Ndalomo Fiji  0.1
13 Dec 2020 06:30 Saint-Denis New Caledonia  0.1
14 Dec 2020 00:45 Ndawara Fiji  0.1
14 Dec 2020 00:45 Waisa Fiji  0.1
13 Dec 2020 00:15 Ndenimanu Fiji  0.1
12 Dec 2020 15:15 Goro New Caledonia  0.1
13 Dec 2020 16:15 Gasele Fiji  0.1
13 Dec 2020 16:15 Soso Fiji  0.1
13 Dec 2020 16:15 Kavala Fiji  0.1
13 Dec 2020 16:15 Kaduvu Fiji  0.1
13 Dec 2020 16:15 Nukuvou Fiji  0.1
13 Dec 2020 16:15 Nabouwalu Fiji  0.1
13 Dec 2020 16:15 Vabea Fiji  0.1
12 Dec 2020 17:30 Teci Fiji  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 Haarumou Solomon Islands  0.1
12 Dec 2020 20:45 Ahenawai Solomon Islands  0.1
12 Dec 2020 20:45 Palasuu 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 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 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 20:45 Umara Solomon Islands  0.1
12 Dec 2020 18:45 Lekia New Caledonia  0.1
12 Dec 2020 18:45 Fayaoue New Caledonia  0.1
12 Dec 2020 18:45 Wadrilla New Caledonia  0.1
12 Dec 2020 18:45 Ognahu New Caledonia  0.1
12 Dec 2020 18:45 Wegnec St-Joseph New Caledonia  0.1
12 Dec 2020 18:45 Teouta New Caledonia  0.1
12 Dec 2020 18:45 Ognat New Caledonia  0.1
12 Dec 2020 21:00 Kaokaona Solomon Islands  0.1
12 Dec 2020 21:00 Pamua Solomon Islands  0.1
12 Dec 2020 21:00 Sungasau Solomon Islands  0.1
12 Dec 2020 21:00 Tawarodo Solomon Islands  0.1
12 Dec 2020 21:00 Hulihale Solomon Islands  0.1
12 Dec 2020 21:00 Kaonasughu Solomon Islands  0.1
12 Dec 2020 21:00 Waimapuru Solomon Islands  0.1
12 Dec 2020 21:00 Mwanimauru Solomon Islands  0.1
12 Dec 2020 21:00 Manihinua Solomon Islands  0.1
12 Dec 2020 21:00 Manchuki Solomon Islands  0.1
12 Dec 2020 21:00 Ngorangora Solomon Islands  0.1
12 Dec 2020 21:00 Arohane Solomon Islands  0.1
12 Dec 2020 21:00 Tawani Solomon Islands  0.1
12 Dec 2020 21:00 Manewiriwiri Solomon Islands  0.1
12 Dec 2020 20:45 Bio I Solomon Islands  0.1
12 Dec 2020 20:45 Suenn Solomon Islands  0.1
13 Dec 2020 20:15 Vangai Fiji  0.1
13 Dec 2020 18:00 Balaide New Caledonia  0.1
13 Dec 2020 18:00 Saint-Paul New Caledonia  0.1
12 Dec 2020 20:45 Tetere Solomon Islands  0.1
12 Dec 2020 20:45 Namakohigho Solomon Islands  0.1
12 Dec 2020 20:45 Wango Solomon Islands  0.1
12 Dec 2020 20:45 Maniate Solomon Islands  0.1
12 Dec 2020 20:45 Tawasu Solomon Islands  0.1
12 Dec 2020 17:30 Mbukama Fiji  0.1
12 Dec 2020 17:30 Yasawairara Fiji  0.1
15 Dec 2020 09:15 Saint-Louis New Caledonia  0.1
15 Dec 2020 09:15 Plum New Caledonia  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 18:00 Navindamu Fiji  0.1
12 Dec 2020 20:45 Ulawa I Solomon Islands  0.1
12 Dec 2020 20:45 Mwarada Solomon Islands  0.1
12 Dec 2020 20:45 Ahia Solomon Islands  0.1
12 Dec 2020 20:45 Sioduru Solomon Islands  0.1
12 Dec 2020 20:45 Su'utaluhia Solomon Islands  0.1
12 Dec 2020 20:45 Taheramo Solomon Islands  0.1
12 Dec 2020 20:45 Ngorangora Solomon Islands  0.1
12 Dec 2020 22:30 Vaoleli Vanuatu  0.1
12 Dec 2020 22:30 Tafouale Vanuatu  0.1
12 Dec 2020 22:30 Pawe Vanuatu  0.1
12 Dec 2020 22:30 Liro Vanuatu  0.1
12 Dec 2020 22:30 Ignal Vanuatu  0.1
12 Dec 2020 22:30 Lulep Nesa Vanuatu  0.1
12 Dec 2020 22:30 Endu Pahakol Vanuatu  0.1
12 Dec 2020 22:30 Toak Vanuatu  0.1
12 Dec 2020 22:30 Halos Vanuatu  0.1
12 Dec 2020 20:45 Manakia Solomon Islands  0.1
12 Dec 2020 20:45 Paa Solomon Islands  0.1
12 Dec 2020 20:45 Naparaoinawa Solomon Islands  0.1
12 Dec 2020 20:45 Ngagatari Solomon Islands  0.1
12 Dec 2020 20:45 Nahahau Solomon Islands  0.1