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 HWRF
Exposed countries Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 65 km/h
Maximum storm surge 0.7 m (06 Feb 11:00 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
HWRF Current 65 km/h 0.7 m 18 mm 0.5
HWRF Overall 94 km/h 1.0 m 466 mm 0.5

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

Wind

94 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population

Estimations based on the bulletin of 05 Feb 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia362 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 31 Jan 2021 12:00 68 -
- - - - - Australia
GREEN 2 31 Jan 2021 18:00 72 -
- - - - - Australia
GREEN 3 01 Feb 2021 00:00 65 -
- - - - - Australia
GREEN 4 01 Feb 2021 06:00 68 - - - - - - -
GREEN 5 01 Feb 2021 12:00 65 - - - - - - -
GREEN 6 01 Feb 2021 18:00 65 - - - - - - -
GREEN 7 02 Feb 2021 00:00 50 - - - - - - -
GREEN 8 02 Feb 2021 06:00 54 - - - - - - -
GREEN 9 02 Feb 2021 12:00 54 - - - - - - -
GREEN 10 02 Feb 2021 18:00 58 - - - - - - -
GREEN 11 03 Feb 2021 00:00 61 - - - - - - -
GREEN 12 03 Feb 2021 06:00 58 - - - - - - -
GREEN 13 03 Feb 2021 12:00 61 - - - - - - -
GREEN 14 03 Feb 2021 18:00 61 -
- - - - - Australia
GREEN 15 04 Feb 2021 00:00 61 - - - - - - -
GREEN 16 04 Feb 2021 06:00 79 -
- - - - - Australia
GREEN 17 04 Feb 2021 12:00 76 -
- - - - - Australia
GREEN 18 04 Feb 2021 18:00 68 -
- - - - - Australia
GREEN 19 05 Feb 2021 00:00 94 -
- - - - - Australia




Impact estimation for the next 72h





Rain exposed population

Estimations based on the bulletin of 05 Feb 2021 00:00 UTC
LevelCountryPopulation 
50-100 mmAustralia10 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 31 Jan 2021 12:00 19 Few people - - - - - - Australia
Blue 2 31 Jan 2021 18:00 20 Few people - - - - - - Australia
Blue 3 01 Feb 2021 00:00 18 Few people - - - - - - Australia
Blue 4 01 Feb 2021 06:00 19 - - - - - - -
Blue 5 01 Feb 2021 12:00 18 - - - - - - -
Blue 6 01 Feb 2021 18:00 18 - - - - - - -
Blue 7 02 Feb 2021 00:00 14 - - - - - - -
Blue 8 02 Feb 2021 06:00 15 - - - - - - -
Blue 9 02 Feb 2021 12:00 15 - - - - - - -
Blue 10 02 Feb 2021 18:00 16 - - - - - - -
Blue 11 03 Feb 2021 00:00 17 - - - - - - -
Blue 12 03 Feb 2021 06:00 16 - - - - - - -
Blue 13 03 Feb 2021 12:00 17 - - - - - - -
Blue 14 03 Feb 2021 18:00 17 Few people - - - - - - Australia
Blue 15 04 Feb 2021 00:00 17 - - - - - - -
Blue 16 04 Feb 2021 06:00 22 Few people - - - - - - Australia
Blue 17 04 Feb 2021 12:00 21 Few people - - - - - - Australia
Blue 18 04 Feb 2021 18:00 19 Few people - - - - - - Australia
Blue 19 05 Feb 2021 00:00 335 -
- - - - - Australia




Impact estimation for the next 72h

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Hamelin Pool, Australia. This height is estimated for 06 Feb 2021 11:00 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.

Calculation based on the bulletin of 05 Feb 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
06 Feb 2021 11:00 Hamelin Pool Australia  0.7
06 Feb 2021 11:00 Hamelin Australia  0.7
06 Feb 2021 11:15 Gladstone Australia  0.6
06 Feb 2021 09:30 Carrarang Australia  0.6
06 Feb 2021 09:30 Tamala Australia  0.6
06 Feb 2021 09:00 Nanga Australia  0.6
06 Feb 2021 02:30 Shark Bay Australia  0.5
06 Feb 2021 02:30 Monkey Mia Australia  0.5
06 Feb 2021 07:00 Useless Loop Australia  0.4
06 Feb 2021 06:30 Dirk Hartog Australia  0.4
06 Feb 2021 07:15 Denham Australia  0.4
07 Feb 2021 21:00 Vasse Australia  0.3
07 Feb 2021 21:00 Broadwater Australia  0.3
07 Feb 2021 21:00 Busselton Australia  0.3
07 Feb 2021 21:00 Wonnerup Australia  0.3
07 Feb 2021 21:00 Ludlow Australia  0.3
06 Feb 2021 15:45 Kalbarri Australia  0.3
07 Feb 2021 21:30 Dunsborough Australia  0.3
07 Feb 2021 21:30 Quindalup Australia  0.3
07 Feb 2021 10:15 Denison Australia  0.3
07 Feb 2021 10:15 Port Denison Australia  0.3
07 Feb 2021 10:15 Dongara Australia  0.3
07 Feb 2021 01:15 Geraldton Australia  0.3
07 Feb 2021 01:15 Drummond Cove Australia  0.3
07 Feb 2021 01:15 Popes Landing Australia  0.3
07 Feb 2021 01:15 Waggrakine Australia  0.3
06 Feb 2021 23:45 Gregory Australia  0.3
07 Feb 2021 01:30 Horrocks Australia  0.3
05 Feb 2021 07:45 Point Samson Australia  0.3
05 Feb 2021 07:45 Cossack Australia  0.3
07 Feb 2021 10:15 Illawong Australia  0.3
07 Feb 2021 21:00 Gunyulgup Australia  0.3
07 Feb 2021 21:00 Yallingup Australia  0.3
07 Feb 2021 01:45 Greenough Australia  0.3
07 Feb 2021 10:15 Coolimba Australia  0.3
07 Feb 2021 01:30 Lynton Australia  0.3
07 Feb 2021 20:45 Dalyellup Australia  0.3
07 Feb 2021 20:45 Bunbury Australia  0.3
07 Feb 2021 20:45 Picton Australia  0.3
07 Feb 2021 20:45 Eaton Australia  0.3
07 Feb 2021 20:45 Australind Australia  0.3
07 Feb 2021 20:45 Binningup Australia  0.3
07 Feb 2021 20:45 Burragenup Australia  0.3
05 Feb 2021 07:15 Wickham Australia  0.2
07 Feb 2021 09:45 Leeman Australia  0.2
07 Feb 2021 20:45 Myalup Australia  0.2
05 Feb 2021 03:45 Carnarvon Australia  0.2
07 Feb 2021 19:30 Green Head Australia  0.2
07 Feb 2021 19:30 Jurien Australia  0.2
05 Feb 2021 07:30 Dampier Australia  0.2
05 Feb 2021 07:30 Karratha Australia  0.2
07 Feb 2021 20:15 Falcon Australia  0.2
07 Feb 2021 20:15 Mandurah Australia  0.2
07 Feb 2021 20:15 Warnbro Australia  0.2
07 Feb 2021 20:15 Peelhurst Australia  0.2
07 Feb 2021 20:15 Singleton Australia  0.2
07 Feb 2021 20:15 Karnup Australia  0.2
05 Feb 2021 03:15 Quobba Australia  0.2
07 Feb 2021 19:30 Cervantes Australia  0.2
05 Feb 2021 07:45 East Lewis I Australia  0.2
05 Feb 2021 07:45 Mardie Australia  0.2
07 Feb 2021 20:00 Milyeannup Australia  0.2
07 Feb 2021 20:00 Safety Bay Australia  0.2
07 Feb 2021 20:00 Rockingham Australia  0.2
07 Feb 2021 19:15 Lancelin Australia  0.2
07 Feb 2021 20:00 Gracetown Australia  0.2
05 Feb 2021 00:00 Cape Cuvier Australia  0.2
07 Feb 2021 20:15 Fremantle Australia  0.2
07 Feb 2021 20:15 North Beach Australia  0.2
07 Feb 2021 20:15 North Fremantle Australia  0.2
07 Feb 2021 20:15 Scarborough Australia  0.2
07 Feb 2021 20:15 Mosman Park Australia  0.2
07 Feb 2021 20:15 Cottesloe Australia  0.2
07 Feb 2021 20:15 East Fremantle Australia  0.2
07 Feb 2021 20:15 Coogee Australia  0.2
07 Feb 2021 20:15 Peppermint Grove Australia  0.2
07 Feb 2021 20:15 Swanbourne Australia  0.2
07 Feb 2021 20:15 Claremont Australia  0.2
07 Feb 2021 20:15 Spearwood Australia  0.2
07 Feb 2021 20:15 Bicton Australia  0.2
05 Feb 2021 02:30 Gnaraloo Australia  0.2
07 Feb 2021 20:15 Augusta Australia  0.2
05 Feb 2021 20:15 Learmonth Australia  0.2
07 Feb 2021 19:45 Seabird Australia  0.2
07 Feb 2021 19:45 Guilderton Australia  0.1
07 Feb 2021 19:45 Two Rocks Australia  0.1
07 Feb 2021 19:45 Yanchep Australia  0.1
07 Feb 2021 19:30 Quinns Rock Australia  0.1
07 Feb 2021 19:30 Mullalloo Beach Australia  0.1
07 Feb 2021 20:45 Hamelin Bay Australia  0.1
05 Feb 2021 02:30 Cardabia Australia  0.1
05 Feb 2021 11:30 Warroora Australia  0.1
07 Feb 2021 19:45 Wattleup Australia  0.1
05 Feb 2021 03:15 Glenroy Australia  0.1
05 Feb 2021 00:00 Onslow Australia  0.1
05 Feb 2021 02:30 Ningaloo Australia  0.1
05 Feb 2021 00:30 Exmouth Australia  0.1
05 Feb 2021 07:45 Kencong Indonesia  0.1
05 Feb 2021 07:45 Lodjedjer Indonesia  0.1
05 Feb 2021 07:15 Ah Chong I Australia  0.1
05 Feb 2021 01:30 Bundera Bundera Australia  0.1