Overall Red Tropical Cyclone alert for YASA-20 in Fiji, from 12 Dec 2020 12:00 UTC to 20 Dec 2020 00:00 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 Red alert Tropical Cyclone for YASA-20

in Fiji,

15 Dec 2020 00 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone YASA-20 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GFS
Exposed countries	Fiji, Tonga
Exposed population	240 thousand in Category 1 or higher
Maximum wind speed	133 km/h
Maximum storm surge	0.3 m (15 Dec 00:15 UTC)
Vulnerability	Medium (Fiji)

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	133 km/h	0.3 m	128 mm	0.5
GFS Overall	281 km/h	1.3 m	829 mm	2.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

281 km/h

Up to 240 thousand in Category 1 strength or higher (see SSHS)

Wind exposed population - AoIs

Estimations based on the bulletin of 15 Dec 2020 00:00 UTC

Category	Country	Population
CAT. 2	Fiji	9,078
CAT. 1	Fiji	234,172
Tropical Storm	Fiji, Tonga	215,860	+
	Fiji	215,830
	Tonga	30

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	Countries
1	12 Dec 2020 12:00	101	-	-	-	-	-	-	-
2	12 Dec 2020 18:00	83	-	-	-	-	-	-	-
3	13 Dec 2020 00:00	68	-	-	-	-	-	-	-
4	13 Dec 2020 06:00	68	-	-	-	-	-	-	-
5	13 Dec 2020 12:00	94	-	-	-	-	-	-	-
6	13 Dec 2020 18:00	101	-	-	-	-	-	-	-
7	14 Dec 2020 00:00	94	-	-	-	-	-	-	-
8	14 Dec 2020 06:00	108	-	-	-	-	-	-	-
9	14 Dec 2020 12:00	119	-		-	-	-	-	-	Tonga
10	14 Dec 2020 18:00	122	-		-	-	-	-	-	Tonga
11	15 Dec 2020 00:00	191	240 thousand				-	-	-	Fiji, Tonga

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 15 Dec 2020 00:00 UTC

Level	Country	Population
250-500 mm	Fiji	393,971
100-250 mm	Fiji	357,336
50-100 mm	Solomon Islands, Fiji, Wallis and Futuna, Tonga	167,656	+
	Solomon Islands	941
	Fiji	150,889
	Wallis and Futuna	15,561
	Tonga	265

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	12 Dec 2020 12:00	229	-	-	-	-	-	-	-
2	12 Dec 2020 18:00	268	-	-	-	-	-	-	-
3	13 Dec 2020 00:00	132	-	-	-	-	-	-	-
4	13 Dec 2020 06:00	43	-	-	-	-	-	-	-
5	13 Dec 2020 12:00	163	-	-	-	-	-	-	-
6	13 Dec 2020 18:00	181	-	-	-	-	-	-	-
7	14 Dec 2020 00:00	170	-	-	-	-	-	-	-
8	14 Dec 2020 06:00	121	-	-	-	-	-	-	-
9	14 Dec 2020 12:00	136	-	-	-	-	-	-	-
10	14 Dec 2020 18:00	138	-	-	-	-	-	-	-
11	15 Dec 2020 00:00	885	750 thousand				-	-	-	Solomon Islands, Fiji, Wallis and Futuna, Tonga

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Naindi, Fiji. This height is estimated for 15 Dec 2020 00:15 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 15 Dec 2020 00:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	15 Dec 2020 00:15	Naindi	Fiji	0.3
	15 Dec 2020 00:15	Korosi	Fiji	0.3
	15 Dec 2020 00:15	Korotasere	Fiji	0.3
	15 Dec 2020 00:15	Naweni	Fiji	0.3
	15 Dec 2020 00:15	Nakarambo	Fiji	0.3
	15 Dec 2020 00:15	Viani	Fiji	0.3
	15 Dec 2020 00:15	Ndrekeniwai	Fiji	0.3
	15 Dec 2020 00:00	Nailanga	Fiji	0.3
	15 Dec 2020 00:00	Sorokoba	Fiji	0.3
	15 Dec 2020 00:00	Ba	Fiji	0.3
	15 Dec 2020 00:00	Natunuka	Fiji	0.3
	15 Dec 2020 00:00	Tavua	Fiji	0.3
	15 Dec 2020 00:00	Momi	Fiji	0.3
	15 Dec 2020 00:00	Nadi	Fiji	0.3
	15 Dec 2020 00:00	Namaka	Fiji	0.3
	15 Dec 2020 00:00	Lautoka	Fiji	0.3
	15 Dec 2020 00:00	Solevu	Fiji	0.3
	15 Dec 2020 00:00	Tavua	Fiji	0.2
	15 Dec 2020 00:00	Malake	Fiji	0.2
	15 Dec 2020 00:00	Mbangasau	Fiji	0.2
	15 Dec 2020 00:00	Lao	Fiji	0.2
	15 Dec 2020 00:00	Biagunu	Fiji	0.2
	15 Dec 2020 03:30	Nanduri	Fiji	0.2
	15 Dec 2020 03:30	Vatutandova	Fiji	0.2
	15 Dec 2020 04:00	Nayavutoka	Fiji	0.2
	15 Dec 2020 04:00	Lawaki	Fiji	0.2
	15 Dec 2020 04:00	Naingani	Fiji	0.2
	15 Dec 2020 00:00	Nailou	Fiji	0.2
	15 Dec 2020 00:00	Nawi	Fiji	0.2
	15 Dec 2020 04:15	Navinggiri	Fiji	0.2
	15 Dec 2020 04:15	Yangganga	Fiji	0.2
	15 Dec 2020 04:15	Nawailevu	Fiji	0.2
	15 Dec 2020 04:15	Nasarowangga	Fiji	0.2
	15 Dec 2020 04:15	Rakiraki	Fiji	0.2
	15 Dec 2020 04:15	Vaileka	Fiji	0.2
	15 Dec 2020 04:15	Nanukuloa	Fiji	0.2
	15 Dec 2020 04:15	Nasau	Fiji	0.2
	15 Dec 2020 05:00	Koroinasolo	Fiji	0.2
	15 Dec 2020 05:00	Ndalomo	Fiji	0.2
	15 Dec 2020 05:00	Naruwai	Fiji	0.2
	15 Dec 2020 00:00	Vunivatu	Fiji	0.2
	15 Dec 2020 00:00	Navukembuli	Fiji	0.2
	15 Dec 2020 00:00	Naua	Fiji	0.2
	15 Dec 2020 00:00	Namukalau	Fiji	0.2
	15 Dec 2020 01:30	Vunikura	Fiji	0.2
	15 Dec 2020 01:30	Napuka	Fiji	0.2
	15 Dec 2020 00:00	Vangai	Fiji	0.2
	15 Dec 2020 00:00	Namboutini	Fiji	0.2
	15 Dec 2020 03:30	Nagumu	Fiji	0.2
	15 Dec 2020 04:15	Navindamu	Fiji	0.2
	15 Dec 2020 04:30	Thio	New Caledonia	0.2
	15 Dec 2020 04:30	Saint-Gabriel	New Caledonia	0.2
	15 Dec 2020 04:30	Saint Roch	New Caledonia	0.2
	15 Dec 2020 03:30	Somosomo	Fiji	0.2
	15 Dec 2020 03:30	Matayalevu	Fiji	0.2
	15 Dec 2020 03:30	Matacawalevu	Fiji	0.2
	15 Dec 2020 03:30	Sisili	Fiji	0.2
	15 Dec 2020 03:30	Nacula	Fiji	0.2
	15 Dec 2020 03:30	Navotua	Fiji	0.2
	15 Dec 2020 03:30	Tamusua	Fiji	0.2
	15 Dec 2020 04:00	Waisa	Fiji	0.2
	15 Dec 2020 04:00	Natua	Fiji	0.2
	15 Dec 2020 04:00	Mbangata	Fiji	0.2
	15 Dec 2020 04:00	Savusavu	Fiji	0.2
	15 Dec 2020 00:30	Tawake	Fiji	0.1
	15 Dec 2020 00:30	Nukusa	Fiji	0.1
	15 Dec 2020 05:00	Kasavu	Fiji	0.1
	15 Dec 2020 05:00	Korovou	Fiji	0.1
	15 Dec 2020 05:00	Lodoni	Fiji	0.1
	15 Dec 2020 05:00	Naimasimasi	Fiji	0.1
	15 Dec 2020 05:00	Ucunivanua	Fiji	0.1
	15 Dec 2020 05:00	Navuti	Fiji	0.1
	15 Dec 2020 05:00	Nasaga	Fiji	0.1
	15 Dec 2020 05:00	Lovoni	Fiji	0.1
	15 Dec 2020 03:15	Nalauwaki	Fiji	0.1
	15 Dec 2020 04:00	Nambouono	Fiji	0.1
	15 Dec 2020 03:30	Soso	Fiji	0.1
	15 Dec 2020 03:45	Teci	Fiji	0.1
	15 Dec 2020 05:00	Kouaoua	New Caledonia	0.1
	15 Dec 2020 05:00	Canala	New Caledonia	0.1
	15 Dec 2020 05:00	Ouasse	New Caledonia	0.1
	15 Dec 2020 04:45	Savu Sau	Fiji	0.1
	15 Dec 2020 00:00	Rukuruku	Fiji	0.1
	15 Dec 2020 00:00	Nauouo	Fiji	0.1
	15 Dec 2020 03:45	Rabulu	Fiji	0.1
	15 Dec 2020 04:00	Togowere	Fiji	0.1
	15 Dec 2020 00:30	Nasea	Fiji	0.1
	15 Dec 2020 04:30	Ndenimanu	Fiji	0.1
	15 Dec 2020 03:30	Laucala	Fiji	0.1
	15 Dec 2020 03:30	Nausori	Fiji	0.1
	15 Dec 2020 03:30	Lokia	Fiji	0.1
	15 Dec 2020 03:30	Cautata	Fiji	0.1
	15 Dec 2020 03:30	Nasilai	Fiji	0.1
	15 Dec 2020 03:30	Dromuna	Fiji	0.1
	15 Dec 2020 00:00	Levuka	Fiji	0.1
	15 Dec 2020 04:00	Lambulmbatuei	Vanuatu	0.1
	15 Dec 2020 04:00	Meriver	Vanuatu	0.1
	15 Dec 2020 04:00	Bourbar	Vanuatu	0.1
	15 Dec 2020 04:00	Lamap	Vanuatu	0.1
	15 Dec 2020 04:00	Peskarus	Vanuatu	0.1
	15 Dec 2020 04:45	Touho	New Caledonia	0.1
	15 Dec 2020 04:45	Kokengone	New Caledonia	0.1
	15 Dec 2020 04:45	Saint-Denis	New Caledonia	0.1
	15 Dec 2020 04:45	Poindimie	New Caledonia	0.1
	15 Dec 2020 04:45	Ometteux	New Caledonia	0.1
	15 Dec 2020 04:45	Bayes	New Caledonia	0.1
	15 Dec 2020 03:45	Mbukama	Fiji	0.1
	15 Dec 2020 05:00	Ouinne	New Caledonia	0.1
	15 Dec 2020 03:45	Nabouwalu	Fiji	0.1
	15 Dec 2020 03:45	Yasawairara	Fiji	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.