Overall Green alert Tropical Cyclone for IMOGEN-21
in Australia
02 Jan 2021 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source ECMWF
Exposed countries Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 79 km/h
Maximum storm surge 0.6 m (02 Jan 23:30 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
ECMWF Current 79 km/h 0.6 m 22 mm 0.5
ECMWF Overall 65 km/h 0.7 m 745 mm 0.5

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

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Wind

65 km/h

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



Wind exposed population - AoIs

Estimations based on the bulletin of 02 Jan 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia197 

See TC classification SSHS


Wind Impact Timeline

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


Alert N° 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 02 Jan 2021 12:00 83 -
- - - - - Australia
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 02 Jan 2021 12:00 UTC
LevelCountryPopulation 
500-750 mmAustralia27 
250-500 mmPapua New Guinea, Australia2,271
+
Papua New Guinea20 
Australia2,251 
100-250 mmPapua New Guinea, Australia724,888
+
Papua New Guinea296,145 
Australia428,743 
50-100 mmIndonesia, Papua New Guinea, Australia1,009,004
+
Indonesia28,541 
Papua New Guinea931,761 
Australia48,702 

Rain Impact Timeline

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


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 02 Jan 2021 12:00 554 730 thousand
- - Indonesia, Papua New Guinea, Australia




Impact estimation for the next 72h
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StormSurge

0.6 m

The maximum Storm surge height is  0.6m in Karumba, Australia. This height is estimated for 02 Jan 2021 23:30 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 02 Jan 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
02 Jan 2021 23:30 Karumba Australia  0.6
02 Jan 2021 22:15 Kowanyama Australia  0.3
02 Jan 2021 22:15 Kulinchin Australia  0.2
02 Jan 2021 22:30 Weipa Australia  0.2
02 Jan 2021 22:30 Weipa South Australia  0.2
02 Jan 2021 19:45 Mapoon Australia  0.2
02 Jan 2021 19:30 Soeam Indonesia  0.1
02 Jan 2021 19:45 Heits Indonesia  0.1