Overall Green alert Tropical Cyclone for ALESSIA-13
in Australia
Impact Single TC
Impact all weather systems in the area


Tropical Cyclone ALESSIA-13 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS (JRC)
Exposed countries Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 93 km/h
Maximum storm surge n.a.
Vulnerability Low (Australia)


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 GDACS score
GDACS Current 93 km/h n.a. 0.5
GDACS Overall 93 km/h 0.0 m 0.5


93 km/h Current

Up to 18000 people in Tropical storm (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Green 1 22 Nov 2013 06:00 93 No people No people Australia
Green 2 22 Nov 2013 18:00 93 No people No people Australia

Bulletin Timeline

Alert Date (UTC) Category Max winds (km/h) Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon)
1 11/22/2013 6:00:00 AM Tropical storm 64 no people no people -14.5, 120.1
2 11/22/2013 6:00:00 PM Tropical storm 84 <1000 people no people -14.7, 122.8
2 11/23/2013 6:00:00 AM Tropical storm 93 1100 people no people -14.7, 124.4
2 11/23/2013 6:00:00 PM Tropical storm 93 1000 people no people -14.3, 126.3
2 11/24/2013 6:00:00 AM Tropical storm 84 1500 people no people -13.9, 128.3
2 11/24/2013 6:00:00 PM Tropical storm 74 13000 people no people -13.7, 130.1
2 11/25/2013 6:00:00 PM Tropical storm 64 13000 people no people -14, 132.4
2 11/26/2013 6:00:00 PM Tropical depression 47 no people no people -14.6, 134.6
3 11/23/2013 6:00:00 AM Tropical storm 84 1000 people no people -14.9, 124.7
4 11/23/2013 6:00:00 PM Tropical storm 74 1300 people no people -14, 126.7
5 11/24/2013 6:00:00 AM Tropical storm 64 2300 people no people -13.8, 129
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population


Country Region Province Population
Australia Northern Territory 160000 people
Australia Western Australia 1.6 million people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


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.



No locations affected by storm surge > 10 cm

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.