Overall Green alert Tropical Cyclone for TWENTYONE-20
in Australia
12 Mar 2020 00 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone TWENTYONE-20 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 65 km/h
Maximum storm surge 0.5 m (12 Mar 21:00 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
ECMWF Current 65 km/h 0.5 m 125 mm 0.5
ECMWF Overall 101 km/h 0.4 m 211 mm 0.5

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

TOP

Wind

101 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 12 Mar 2020 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia19 

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 10 Mar 2020 12:00 79 - - - - - - -
GREEN 2 11 Mar 2020 00:00 58 - - - - - - -
GREEN 3 11 Mar 2020 12:00 101 - - - - - - -
GREEN 4 12 Mar 2020 00:00 72 -
- - - - - Australia
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 12 Mar 2020 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia9,871 
50-100 mmIndonesia, Australia4,221,187
+
Indonesia4,221,178 
Australia09 

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 10 Mar 2020 12:00 153 - - - - - - -
Blue 2 11 Mar 2020 00:00 74 -
- - - - - Indonesia
Blue 3 11 Mar 2020 12:00 152 -
- - - - - Indonesia
Blue 4 12 Mar 2020 00:00 172 10 thousand
- - - - Indonesia, Australia




Impact estimation for the next 72h
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StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Learmonth, Australia. This height is estimated for 12 Mar 2020 21:00 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 12 Mar 2020 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
12 Mar 2020 21:00 Learmonth Australia  0.5
12 Mar 2020 20:30 Exmouth Australia  0.4
12 Mar 2020 10:30 Mardie Australia  0.3
12 Mar 2020 07:00 Dampier Australia  0.3
12 Mar 2020 07:00 Karratha Australia  0.3
12 Mar 2020 07:00 Port Hedland Australia  0.3
12 Mar 2020 00:15 East Lewis I Australia  0.3
14 Mar 2020 08:00 Tamala Australia  0.2
14 Mar 2020 09:30 Carrarang Australia  0.2
12 Mar 2020 07:00 Wickham Australia  0.2
12 Mar 2020 07:00 Point Samson Australia  0.2
12 Mar 2020 07:00 Cossack Australia  0.2
14 Mar 2020 10:30 Nanga Australia  0.2
12 Mar 2020 07:00 Pardoo Australia  0.2
12 Mar 2020 06:00 Condon Australia  0.2
12 Mar 2020 09:00 Ah Chong I Australia  0.2
12 Mar 2020 18:15 Onslow Australia  0.2
14 Mar 2020 11:00 Shark Bay Australia  0.2
14 Mar 2020 11:00 Monkey Mia Australia  0.2
12 Mar 2020 20:45 Glenroy Australia  0.2
12 Mar 2020 07:45 Kencong Indonesia  0.2
12 Mar 2020 07:45 Lodjedjer Indonesia  0.2
14 Mar 2020 09:30 Useless Loop Australia  0.2
14 Mar 2020 09:30 Denham Australia  0.2
12 Mar 2020 22:30 Bundera Bundera Australia  0.2
12 Mar 2020 01:30 Chilachap Indonesia  0.1
12 Mar 2020 01:30 Adipala Indonesia  0.1
12 Mar 2020 01:30 Binangoen Indonesia  0.1
13 Mar 2020 00:15 Ningaloo Australia  0.1
13 Mar 2020 06:45 Gnaraloo Australia  0.1
14 Mar 2020 15:45 Tipar Indonesia  0.1
14 Mar 2020 15:45 Balubuk Indonesia  0.1
13 Mar 2020 06:45 Warroora Australia  0.1
12 Mar 2020 06:15 Cirebon Indonesia  0.1
12 Mar 2020 06:15 Losan Indonesia  0.1
14 Mar 2020 16:00 Cengkarengbelakang Indonesia  0.1
12 Mar 2020 16:15 Taju Indonesia  0.1
12 Mar 2020 16:15 Bulumanis Indonesia  0.1
12 Mar 2020 16:15 Batangan Indonesia  0.1
14 Mar 2020 03:00 Dirk Hartog Australia  0.1
13 Mar 2020 17:15 Carnarvon Australia  0.1
12 Mar 2020 15:45 Karangsari Indonesia  0.1
12 Mar 2020 06:45 Bulakamba Indonesia  0.1
14 Mar 2020 08:00 Rembang Indonesia  0.1
14 Mar 2020 08:00 Lasem Indonesia  0.1