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 0.1 m (13 Dec 01:00 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 204 km/h 0.1 m n.a. 0.5
Overall 259 km/h 0.1 m n.a. 0.5

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

Wind

204 km/h Current Max.

Up to no 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

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
1 13 Dec 2020 00:00 Tropical storm 83 no people no people -14.7, 172.7
GREEN
1 13 Dec 2020 12:00 Tropical storm 93 no people no people -15.3, 172.3
GREEN
1 14 Dec 2020 00:00 Tropical storm 102 no people no people -15.6, 171.9
GREEN
1 14 Dec 2020 12:00 Tropical storm 111 no people no people -15.8, 171.4
GREEN
1 15 Dec 2020 12:00 Category 1 130 no people no people -16.1, 171.5
GREEN
1 16 Dec 2020 12:00 Category 2 176 no people 1800 people -16.5, 172.4
GREEN
1 17 Dec 2020 12:00 Category 3 204 no people no people -18.4, 174.1
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

Critical infrastructure

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

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

0.1 m

The maximum Storm surge height is  0.1m in Nalauwaki, Fiji. This height is estimated for 13 Dec 2020 01:00 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 (3 locations). Calculation based on advisory number 1 of 12 Dec 2020 12:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
13 Dec 2020 01:00 Nalauwaki Fiji  0.1
13 Dec 2020 01:00 Soso Fiji  0.1
13 Dec 2020 01:00 Somosomo Fiji  0.1