Overall Green alert Tropical Cyclone for MANGGA-20
in Australia, Cocos (Keeling) Islands

Impact

Tropical Cyclone MANGGA-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Australia, Cocos (Keeling) Islands
Exposed population No people in Category 1 or higher
Maximum wind speed 74 km/h
Maximum storm surge n.a.
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
Current 83 km/h n.a. n.a. 0.5
Overall 74 km/h 0.0 m n.a. 0.5

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

Wind

83 km/h Current Max.

Up to 130000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 2 21 May 2020 06:00 102 2.3 million No people Australia
Green 3 21 May 2020 12:00 93 2.3 million No people Cocos (Keeling) Islands, Australia
Green 4 21 May 2020 18:00 93 100 thousand No people Cocos (Keeling) Islands, Australia
Green 5 22 May 2020 00:00 93 70 thousand No people Cocos (Keeling) Islands, Australia
Green 6 22 May 2020 06:00 83 130 thousand No people Cocos (Keeling) Islands, Australia

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
2 21 May 2020 06:00 Tropical storm 65 no people no people -9.1, 92.2
GREEN
3 21 May 2020 12:00 Tropical storm 65 no people no people -9.3, 92.5
GREEN
4 21 May 2020 18:00 Tropical storm 65 no people no people -9.8, 93.1
GREEN
5 22 May 2020 00:00 Tropical storm 65 no people <1000 people -10.6, 93.8 Cocos (Keeling) Islands
GREEN
6 22 May 2020 06:00 Tropical storm 65 no people <1000 people -11.1, 94.2 Cocos (Keeling) Islands
GREEN
6 22 May 2020 18:00 Tropical storm 74 no people <1000 people -13.7, 96.3 Cocos (Keeling) Islands
GREEN
6 23 May 2020 06:00 Tropical storm 83 no people no people -16.6, 99.7
GREEN
6 23 May 2020 18:00 Tropical storm 83 no people 9300 people -20.1, 104.5 Australia
GREEN
6 24 May 2020 06:00 Tropical storm 74 no people 130000 people -23.8, 110.4 Australia
GREEN
6 25 May 2020 06:00 Tropical storm 65 no people no people -30.3, 123.6 Australia
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Cocos Is.
Australia

Provinces

Region Province Country
Cocos Is. Cocos (Keeling) Islands
Western Australia Australia

Populated places

Name Region Province Country City class Population
West Island Cocos (Keeling) Islands Capital <1000 people
Exmouth Western Australia Australia City -
Geraldton Western Australia Australia City 27000 people
Kalgoorlie Western Australia Australia City -
Norseman Western Australia Australia City -

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)
Cocos Is CCK 3 Civ. Paved Yes 7900
Learmonth LEA 6 Mil. Paved Yes 9900
Exmouth Gulf EXM unknown 0
Carnarvon CVQ 4 Civ. Paved Yes 5500
Useless Loop USL unknown 0
Shark Bay MJK 34 Priv. Paved No 5500
Gascoyne Junction GSC unknown 0
Kalbarri KAX unknown 0
Paraburdoo PBO 429 Civ. Paved Yes 6900
Geraldton GET 37 Civ. Paved Yes 6400
Mullewa MXU unknown 0
Dongara DOX unknown 0
Eneabba ENB unknown 0
Yalgoo YLG unknown 0
Jurien Bay JUR unknown 0
Morawa MWB 270 Civ. Unpaved Yes 3000
Big Bell BBE unknown 0
Cue CUY 442 Civ. Unpaved No 6400
Meekatharra MKR 522 Civ. Paved Yes 7100
Mount Magnet MMG 411 Civ. Unpaved Yes 5000
Sandstone NDS unknown 0
Wiluna WUN 501 Civ. Unpaved Yes 5900
Yeelirrie KYF unknown 0
Jundee 561 Priv. Paved Yes 6800
Mount Keith WME 544 Priv. Paved Yes 5900
Leinster LER 495 Civ. Unpaved Yes 5900
Bronzewing 500 Priv. Paved Yes 5900
Southern Cross SQC 354 Civ. Unpaved Yes 3000
Leonora LNO 370 Civ. Unpaved Yes 5200
Windarra WND unknown 0
Murrin Murrin 466 Priv. Paved Yes 6500
Laverton LVO 465 Civ. Paved Yes 5900
Kalgoorlie KGI 360 Civ. Paved Yes 6500
Kambalda KDB unknown 0
Norseman NSM 263 Civ. Unpaved Yes 3000
Caiguna CGV unknown 0

Ports

Name LOCODE Country
Port Exmouth Coral Sea Islands
Learmonth Coral Sea Islands
Exmouth AUPEX Coral Sea Islands
Maud Landing Coral Sea Islands
Cape Cuvier Coral Sea Islands
Carnarvon AUCVQ Coral Sea Islands
Denham Coral Sea Islands
Useless Loop AUUSL Coral Sea Islands
Hamelin Pool Coral Sea Islands
Bluff Point Coral Sea Islands
Port Gregory Coral Sea Islands
Geraldton AUGET Coral Sea Islands
Dongarra Coral Sea Islands
Rocky Point Coral Sea Islands
Eyre 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.

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StormSurge

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.