Overall Green alert Tropical Cyclone for EIGHTEEN-21
in Australia

Impact

Tropical Cyclone EIGHTEEN-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS (JTWC)
Exposed countries Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 65 km/h
Maximum storm surge 0.8 m (05 Feb 12:00 UTC)
Vulnerability Low (Australia)

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
GDACS Current 65 km/h 0.8 m n.a. 0.5
GDACS Overall 65 km/h 0.8 m n.a. 0.5

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

Wind

65 km/h Current Max.

Up to 6000 people in Tropical storm (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Countries
Green 1 31 Jan 2021 12:00 93 Few people No people Australia
Green 2 31 Jan 2021 18:00 93 Few people No people Australia
Green 3 01 Feb 2021 00:00 93 4 thousand No people Australia
Green 4 01 Feb 2021 06:00 93 10 thousand No people Australia
Green 5 01 Feb 2021 12:00 102 10 thousand No people Australia
Green 6 01 Feb 2021 18:00 93 60 thousand No people Australia
Green 7 02 Feb 2021 00:00 93 1.9 million No people Australia
Green 8 02 Feb 2021 06:00 83 2.1 million No people Australia
Green 9 02 Feb 2021 12:00 83 1.9 million No people Australia
Green 10 02 Feb 2021 18:00 74 1.2 million No people Australia
Green 11 03 Feb 2021 00:00 65 5 thousand No people Australia
Green 12 03 Feb 2021 06:00 65 8 thousand No people Australia
Green 13 03 Feb 2021 12:00 74 50 thousand No people Australia
Green 14 03 Feb 2021 18:00 65 60 thousand No people Australia
Green 15 04 Feb 2021 00:00 65 8 thousand No people Australia
Green 16 04 Feb 2021 06:00 65 10 thousand No people Australia
Green 17 04 Feb 2021 12:00 65 7 thousand No people Australia
Green 18 04 Feb 2021 18:00 74 50 thousand No people Australia
Green 19 05 Feb 2021 00:00 65 6 thousand No people Australia

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 31 Jan 2021 12:00 Tropical depression 56 no people no people -21.4, 121.1
GREEN
2 31 Jan 2021 18:00 Tropical depression 56 no people no people -21.3, 119.8 Australia
GREEN
3 01 Feb 2021 00:00 Tropical depression 56 no people no people -20.6, 119 Australia
GREEN
4 01 Feb 2021 06:00 Tropical depression 56 no people no people -20.6, 119 Australia
GREEN
5 01 Feb 2021 12:00 Tropical depression 56 no people no people -21.1, 118.1 Australia
GREEN
6 01 Feb 2021 18:00 Tropical depression 56 no people no people -21.5, 117.1 Australia
GREEN
7 02 Feb 2021 00:00 Tropical depression 56 no people no people -22.1, 116.2 Australia
GREEN
8 02 Feb 2021 06:00 Tropical depression 56 no people no people -22.9, 115.7 Australia
GREEN
9 02 Feb 2021 12:00 Tropical depression 56 no people no people -23.6, 115.1 Australia
GREEN
10 02 Feb 2021 18:00 Tropical depression 56 no people no people -24.2, 114.5 Australia
GREEN
11 03 Feb 2021 00:00 Tropical depression 56 no people no people -23.7, 114.3 Australia
GREEN
12 03 Feb 2021 06:00 Tropical depression 56 no people no people -23.9, 114.3 Australia
GREEN
13 03 Feb 2021 12:00 Tropical depression 56 no people no people -23.9, 114.5 Australia
GREEN
14 03 Feb 2021 18:00 Tropical depression 56 no people no people -23.8, 114.8 Australia
GREEN
15 04 Feb 2021 00:00 Tropical depression 56 no people no people -24.3, 114.3 Australia
GREEN
16 04 Feb 2021 06:00 Tropical storm 65 5800 people no people -24.4, 113.7 Australia
GREEN
17 04 Feb 2021 12:00 Tropical storm 65 6300 people no people -24.6, 113.4 Australia
GREEN
18 04 Feb 2021 18:00 Tropical storm 65 5700 people no people -24.8, 113.1
GREEN
19 05 Feb 2021 00:00 Tropical storm 65 <1000 people no people -25.1, 112.3
GREEN
19 05 Feb 2021 12:00 Tropical storm 65 no people no people -25.8, 112
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population

Countries

Country
Australia

Provinces

Region Province Country Population
Western Australia Australia 1.6 million people

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)
Useless Loop USL unknown 0
Carnarvon CVQ 4 Civ. Paved Yes 5500

Ports

Name LOCODE Country
Carnarvon AUCVQ Coral Sea Islands
Cape Cuvier Coral Sea Islands
Useless Loop AUUSL Coral Sea Islands

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 Denham, Australia. This height is estimated for 05 Feb 2021 12:00 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 (28 locations). Calculation based on advisory number 19 of 05 Feb 2021 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
05 Feb 2021 12:00 Denham Australia  0.8
05 Feb 2021 12:00 Useless Loop Australia  0.6
05 Feb 2021 12:00 Carrarang Australia  0.6
05 Feb 2021 12:00 Tamala Australia  0.6
05 Feb 2021 12:00 Dirk Hartog Australia  0.5
05 Feb 2021 12:00 Shark Bay Australia  0.5
05 Feb 2021 12:00 Nanga Australia  0.5
04 Feb 2021 09:00 Mardie Australia  0.4
05 Feb 2021 12:00 Glenroy Australia  0.3
04 Feb 2021 09:00 Wickham Australia  0.3
04 Feb 2021 09:00 Point Samson Australia  0.3
04 Feb 2021 09:00 Cossack Australia  0.3
05 Feb 2021 11:00 Carnarvon Australia  0.3
05 Feb 2021 12:00 Learmonth Australia  0.3
04 Feb 2021 08:00 East Lewis I Australia  0.3
04 Feb 2021 10:00 Condon Australia  0.2
04 Feb 2021 14:00 Derby Australia  0.2
04 Feb 2021 20:00 Thangoo Australia  0.2
05 Feb 2021 12:00 Exmouth Australia  0.2
04 Feb 2021 20:00 Broome Australia  0.2
05 Feb 2021 10:00 Cape Cuvier Australia  0.1
05 Feb 2021 11:00 Cardabia Australia  0.1
04 Feb 2021 09:00 Ah Chong I Australia  0.1
04 Feb 2021 20:00 Waterbank Australia  0.1
04 Feb 2021 07:00 Gnaraloo Australia  0.1
04 Feb 2021 21:00 Kennedys Cottage Australia  0.1
05 Feb 2021 11:00 Warroora Australia  0.1
04 Feb 2021 06:00 Quobba Australia  0.1