Overall Green alert Tropical Cyclone for TWENTYONE-20
in Australia
11 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
Exposed population No people in Category 1 or higher
Maximum wind speed 58 km/h
Maximum storm surge 0.3 m (11 Mar 00:30 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 58 km/h 0.3 m 74 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

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 11 Mar 2020 00:00 UTC

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 76 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 11 Mar 2020 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia448,416 
50-100 mmIndonesia40,144,868 

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 00:00 191 450 thousand
- - - - Indonesia




Impact estimation for the next 72h
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StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Kencong, Indonesia. This height is estimated for 11 Mar 2020 00:30 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 11 Mar 2020 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Mar 2020 00:30 Kencong Indonesia  0.3
11 Mar 2020 00:30 Lodjedjer Indonesia  0.3
12 Mar 2020 19:15 Learmonth Australia  0.3
11 Mar 2020 23:45 Dampier Australia  0.2
11 Mar 2020 23:45 Karratha Australia  0.2
11 Mar 2020 03:00 East Lewis I Australia  0.2
12 Mar 2020 10:15 Mardie Australia  0.2
11 Mar 2020 21:30 Pardoo Australia  0.2
11 Mar 2020 22:15 Port Hedland Australia  0.2
11 Mar 2020 21:00 Condon Australia  0.2
12 Mar 2020 18:30 Exmouth Australia  0.2
14 Mar 2020 00:00 Carrarang Australia  0.2
14 Mar 2020 00:00 Tamala Australia  0.2
13 Mar 2020 18:15 Shark Bay Australia  0.2
13 Mar 2020 18:15 Monkey Mia Australia  0.2
11 Mar 2020 03:30 Gregory Australia  0.2
11 Mar 2020 03:30 Lynton Australia  0.2
11 Mar 2020 03:30 Horrocks Australia  0.2
11 Mar 2020 23:15 Point Samson Australia  0.2
11 Mar 2020 23:15 Cossack Australia  0.2
12 Mar 2020 07:00 Wickham Australia  0.2
14 Mar 2020 00:00 Nanga Australia  0.2
12 Mar 2020 20:00 Onslow Australia  0.2
13 Mar 2020 18:15 Dirk Hartog Australia  0.2
11 Mar 2020 03:30 Drummond Cove Australia  0.2
11 Mar 2020 03:30 Popes Landing Australia  0.2
12 Mar 2020 09:00 Ah Chong I Australia  0.2
13 Mar 2020 18:00 Denham Australia  0.2
11 Mar 2020 03:30 Waggrakine Australia  0.1
13 Mar 2020 18:45 Useless Loop Australia  0.1
12 Mar 2020 18:15 Glenroy Australia  0.1
11 Mar 2020 03:30 Geraldton Australia  0.1
13 Mar 2020 17:45 Carnarvon Australia  0.1
12 Mar 2020 08:30 Kendal Indonesia  0.1
12 Mar 2020 08:30 Mangkang-Kulan Indonesia  0.1
12 Mar 2020 08:30 Djomblang Indonesia  0.1
12 Mar 2020 08:30 Semarang Indonesia  0.1
12 Mar 2020 08:30 Karangroto Indonesia  0.1
11 Mar 2020 04:45 Lancelin Australia  0.1
11 Mar 2020 04:45 Seabird Australia  0.1