Overall Red Tropical Cyclone alert for YASA-20 in Fiji, from 12 Dec 2020 12:00 UTC to 13 Dec 2020 18:00 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,

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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	GDACS
Exposed countries	Fiji,
Exposed population	160 thousand in Category 1 or higher
Maximum wind speed	259 km/h
Maximum storm surge	0.2 m (17 Dec 18:00 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
Current	185 km/h	0.2 m	n.a.	1.5
Overall	259 km/h	0.2 m	n.a.	1.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

185 km/h Current Max.

Up to 29000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	12 Dec 2020 12:00	204	2 thousand	No people
2	12 Dec 2020 18:00	185	730 thousand	No people	Fiji
3	13 Dec 2020 00:00	176	330 thousand	No people	Fiji
4	13 Dec 2020 06:00	176	350 thousand	No people	Fiji
5	13 Dec 2020 12:00	176	710 thousand	No people	Fiji
6	13 Dec 2020 18:00	185	760 thousand	30 thousand	Fiji

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)
1	12 Dec 2020 12:00	Tropical storm	65	no people	no people	-13.7, 172.9
2	12 Dec 2020 18:00	Tropical storm	65	no people	no people	-14.2, 173.7
3	13 Dec 2020 00:00	Tropical storm	74	no people	no people	-15.1, 173.3
4	13 Dec 2020 06:00	Tropical storm	83	no people	no people	-15.3, 172.7
5	13 Dec 2020 12:00	Tropical storm	83	no people	no people	-15.5, 172.6
6	13 Dec 2020 18:00	Tropical storm	102	no people	no people	-15.7, 172.3
6	14 Dec 2020 06:00	Category 1	120	no people	no people	-15.8, 171.6
6	14 Dec 2020 18:00	Category 1	139	no people	no people	-15.5, 171.2
6	15 Dec 2020 06:00	Category 2	157	no people	no people	-15.1, 171.2
6	15 Dec 2020 18:00	Category 2	176	no people	no people	-14.8, 171.7
6	16 Dec 2020 18:00	Category 3	185	no people	680000 people	-15.2, 173.6
6	17 Dec 2020 18:00	Category 3	185	29000 people	760000 people	-17.1, 176.1
6	18 Dec 2020 18:00	Category 2	176	no people	no people	-20.1, 178

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

Download:

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Fiji

Provinces

Region Province	Country
Fiji	Fiji

Populated places

Name	Region Province	Country	City class	Population
Momi		Fiji	City	-
Nasau		Fiji	City	-

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)
Castaway	CST	unknown
Malololailai	PTF	unknown
Natadola	NTA	unknown
Vatulele	VTF	unknown

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Tavua, Fiji. This height is estimated for 17 Dec 2020 18:00 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (13 locations). Calculation based on advisory number 6 of 13 Dec 2020 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	17 Dec 2020 18:00	Tavua	Fiji	0.2
	17 Dec 2020 18:00	Tavua	Fiji	0.2
	17 Dec 2020 18:00	Soso	Fiji	0.2
	17 Dec 2020 18:00	Somosomo	Fiji	0.2
	17 Dec 2020 18:00	Lautoka	Fiji	0.1
	17 Dec 2020 18:00	Navotua	Fiji	0.1
	17 Dec 2020 18:00	Tamusua	Fiji	0.1
	17 Dec 2020 18:00	Nalauwaki	Fiji	0.1
	17 Dec 2020 18:00	Solevu	Fiji	0.1
	17 Dec 2020 18:00	Rabulu	Fiji	0.1
	17 Dec 2020 18:00	Nailanga	Fiji	0.1
	17 Dec 2020 18:00	Sorokoba	Fiji	0.1
	17 Dec 2020 18:00	Natunuka	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.