Overall Red alert Tropical Cyclone for YASA-20
in Fiji,

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
Glide number: TC-2020-000238-FJI
Exposed countries Fiji,
Exposed population 160 thousand in Category 1 or higher
Maximum wind speed 259 km/h
Maximum storm surge 0.8 m (18 Dec 00:00 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 194 km/h 0.8 m n.a. 2.5
Overall 259 km/h 0.8 m n.a. 2.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Wind

194 km/h Current Max.

Up to 250000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 12 Dec 2020 12:00 204 2 thousand No people
Green 2 12 Dec 2020 18:00 185 730 thousand No people Fiji
Green 3 13 Dec 2020 00:00 176 330 thousand No people Fiji
Green 4 13 Dec 2020 06:00 176 350 thousand No people Fiji
Green 5 13 Dec 2020 12:00 176 710 thousand No people Fiji
Orange 6 13 Dec 2020 18:00 185 760 thousand 30 thousand Fiji
Red 7 14 Dec 2020 00:00 194 800 thousand 250 thousand Fiji

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 12 Dec 2020 12:00 Tropical storm 65 no people no people -13.7, 172.9
GREEN
2 12 Dec 2020 18:00 Tropical storm 65 no people no people -14.2, 173.7
GREEN
3 13 Dec 2020 00:00 Tropical storm 74 no people no people -15.1, 173.3
GREEN
4 13 Dec 2020 06:00 Tropical storm 83 no people no people -15.3, 172.7
GREEN
5 13 Dec 2020 12:00 Tropical storm 83 no people no people -15.5, 172.6
GREEN
6 13 Dec 2020 18:00 Tropical storm 102 no people no people -15.7, 172.3
GREEN
7 14 Dec 2020 00:00 Tropical storm 111 no people no people -15.8, 171.9
GREEN
7 14 Dec 2020 12:00 Category 1 130 no people no people -15.6, 171.4
GREEN
7 15 Dec 2020 00:00 Category 1 148 no people no people -15.2, 171.2
GREEN
7 15 Dec 2020 12:00 Category 2 167 no people no people -14.8, 171.5
GREEN
7 16 Dec 2020 00:00 Category 3 185 no people no people -14.6, 172.2
RED
7 17 Dec 2020 00:00 Category 3 194 190000 people 800000 people -15.4, 174.3
ORANGE
7 18 Dec 2020 00:00 Category 3 194 250000 people 800000 people -17.7, 176.9
GREEN
7 19 Dec 2020 00:00 Category 2 167 no people no people -20.9, 178.7
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 -
Lautoka Fiji City 49000 people
Nadi Fiji Major city 54000 people
Sigatoka Fiji City 12000 people
Nasau Fiji City -
Soso Fiji City -

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Castaway CST unknown 0
Malololailai PTF unknown 0
Nadi International NAN 18 Civ. Paved Yes 10500
Natadola NTA unknown 0
Korolevu KVU unknown 0
Vatulele VTF unknown 0
Kandavu KDV unknown 0

Ports

Name LOCODE Country
Vuda FJVUD Fiji
Lautoka FJLTK Fiji
Kandavu Island Fiji

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.

...

StormSurge

0.8 m

The maximum Storm surge height is  0.8m in Lautoka, Fiji. This height is estimated for 18 Dec 2020 00:00 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 (38 locations). Calculation based on advisory number 7 of 14 Dec 2020 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
18 Dec 2020 00:00 Lautoka Fiji  0.8
18 Dec 2020 00:00 Solevu Fiji  0.5
18 Dec 2020 00:00 Tavua Fiji  0.5
18 Dec 2020 00:00 Tavua Fiji  0.4
18 Dec 2020 00:00 Somosomo Fiji  0.4
18 Dec 2020 00:00 Soso Fiji  0.4
18 Dec 2020 00:00 Namaka Fiji  0.3
18 Dec 2020 00:00 Momi Fiji  0.3
18 Dec 2020 00:00 Nalauwaki Fiji  0.3
18 Dec 2020 00:00 Nadi Fiji  0.3
18 Dec 2020 00:00 Rabulu Fiji  0.3
17 Dec 2020 23:00 Nacula Fiji  0.2
17 Dec 2020 23:00 Navotua Fiji  0.2
18 Dec 2020 00:00 Nailanga Fiji  0.2
18 Dec 2020 00:00 Sorokoba Fiji  0.2
18 Dec 2020 00:00 Natunuka Fiji  0.2
18 Dec 2020 00:00 Togowere Fiji  0.2
18 Dec 2020 00:00 Tamusua Fiji  0.2
18 Dec 2020 00:00 Dromuna Fiji  0.2
18 Dec 2020 00:00 Korovou Fiji  0.2
18 Dec 2020 00:00 Matacawalevu Fiji  0.1
18 Dec 2020 00:00 Sisili Fiji  0.1
18 Dec 2020 00:00 Yangganga Fiji  0.1
18 Dec 2020 00:00 Nawailevu Fiji  0.1
18 Dec 2020 00:00 Ucunivanua Fiji  0.1
18 Dec 2020 00:00 Navuti Fiji  0.1
18 Dec 2020 00:00 Naimasimasi Fiji  0.1
18 Dec 2020 00:00 Koroinasolo Fiji  0.1
18 Dec 2020 00:00 Savu Sau Fiji  0.1
18 Dec 2020 00:00 Navinggiri Fiji  0.1
18 Dec 2020 00:00 Lawaki Fiji  0.1
18 Dec 2020 00:00 Nanukuloa Fiji  0.1
18 Dec 2020 00:00 Ndenimanu Fiji  0.1
18 Dec 2020 00:00 Matayalevu Fiji  0.1
18 Dec 2020 00:00 Lomawal Fiji  0.1
18 Dec 2020 00:00 Mbatiri Fiji  0.1
18 Dec 2020 00:00 Lodoni Fiji  0.1
18 Dec 2020 00:00 Nasaga Fiji  0.1