Overall Green alert Tropical Cyclone for WALLACE-19
in Australia, Indonesia

Impact

Tropical Cyclone WALLACE-19 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Australia, Indonesia
Exposed population No people in Category 1 or higher
Maximum wind speed 130 km/h
Maximum storm surge 0.7 m (06 Apr 08:00 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
GDACS Current 102 km/h 0.6 m n.a. 0.5
GDACS Overall 130 km/h 0.7 m n.a. 0.5

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

Wind

102 km/h Current Max.

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Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 05 Apr 2019 00:00 130 130 thousand No people Australia, Indonesia
Green 2 05 Apr 2019 06:00 111 3 thousand No people Australia
Green 3 05 Apr 2019 12:00 102 150 thousand No people Australia, Indonesia
Green 4 05 Apr 2019 18:00 111 20 thousand No people Indonesia, Australia
Green 5 06 Apr 2019 00:00 102 150 thousand No people Indonesia, Australia

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 05 Apr 2019 00:00 Tropical storm 65 no people no people -11.4, 128.4
GREEN
2 05 Apr 2019 06:00 Tropical storm 65 <1000 people no people -12, 127.4 Australia
GREEN
3 05 Apr 2019 12:00 Tropical storm 65 no people no people -11.8, 126.5 Australia
GREEN
4 05 Apr 2019 18:00 Tropical storm 74 no people no people -11.5, 125.7
GREEN
5 06 Apr 2019 00:00 Tropical storm 74 140000 people no people -11.7, 125.1 Indonesia
GREEN
5 06 Apr 2019 12:00 Tropical storm 83 140000 people no people -12.1, 123.3 Indonesia
GREEN
5 07 Apr 2019 00:00 Tropical storm 93 no people no people -12.7, 121.1
GREEN
5 07 Apr 2019 12:00 Tropical storm 102 no people no people -13.4, 119.2
GREEN
5 08 Apr 2019 00:00 Tropical storm 102 no people no people -14.1, 117.6
GREEN
5 09 Apr 2019 00:00 Tropical storm 93 no people no people -15.6, 115.1
GREEN
5 10 Apr 2019 00:00 Tropical storm 93 no people no people -16.7, 113.3
GREEN
5 11 Apr 2019 00:00 Tropical storm 74 no people no people -17.4, 110.8
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
Indonesia
Australia

Provinces

Region Province Country Population
Nusa Tenggara Timur Indonesia 3.5 million people
Western Australia Australia 1.6 million people
Northern Territory Australia 160000 people

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)
Roti RTI unknown 0
Troughton Island 8 Mil. Unpaved Yes 3000
Garden Point GPN 27 Civ. Unpaved No 3700
Bathurst Island BRT 16 Civ. Paved No 4800
Snake Bay SNB 52 Civ. Paved No 4700

Ports

Name LOCODE Country
Challis / Jabiru / Skua Venture Oil Term AUSKV Coral Sea Islands
Baa Indonesia
Cape Londonderry Coral Sea Islands
Bathurst Island AUBRT 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

0.7 m

The maximum Storm surge height is  0.6m in Sukadana, Indonesia. This height is estimated for 07 Apr 2019 01:00 UTC .

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.

Locations affected by Storm surge (166 locations). Calculation based on advisory number 21 of 10 Apr 2019 00:00:00 UTC. (Simulation using 0.5 minute resolution)

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