Overall Green alert Tropical Cyclone for SEROJA-21
in Australia, Indonesia

Impact

Tropical Cyclone SEROJA-21 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 60 thousand in Category 1 or higher
Maximum wind speed 130 km/h
Maximum storm surge 0.2 m (04 Apr 23:00 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
Current 157 km/h 0.2 m n.a. 0.5
Overall 130 km/h 0.2 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

157 km/h Current Max.

Up to no people in Category 1 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 1 04 Apr 2021 12:00 157 560 thousand No people Indonesia

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Tropical Storm
or higher
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 04 Apr 2021 12:00 Tropical storm 65 91000 people no people -10.4, 123.2
GREEN
1 05 Apr 2021 00:00 Tropical storm 83 140000 people no people -10.7, 122.6
GREEN
1 05 Apr 2021 12:00 Tropical storm 102 no people no people -11.4, 121.3
GREEN
1 06 Apr 2021 00:00 Category 1 120 no people no people -12, 119.9
GREEN
1 06 Apr 2021 12:00 Category 1 139 no people no people -13.2, 118
GREEN
1 07 Apr 2021 12:00 Category 2 157 no people no people -16.4, 114.7
GREEN
1 08 Apr 2021 12:00 Category 1 148 no people no people -19.2, 112
GREEN
1 09 Apr 2021 12:00 Category 1 139 no people no people -21.9, 111.6
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

Critical infrastructure

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

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.

...

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Mboe Eain, Indonesia. This height is estimated for 04 Apr 2021 23:00 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 (36 locations). Calculation based on advisory number 1 of 04 Apr 2021 12:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
04 Apr 2021 23:00 Mboe Eain Indonesia  0.2
05 Apr 2021 05:00 Ege Indonesia  0.2
04 Apr 2021 14:00 Daeoerendale Indonesia  0.1
04 Apr 2021 14:00 Roti Indonesia  0.1
04 Apr 2021 15:00 Suaha Indonesia  0.1
04 Apr 2021 15:00 Keoen Indonesia  0.1
04 Apr 2021 14:00 Eahun Indonesia  0.1
05 Apr 2021 04:00 Kotahawoe Indonesia  0.1
04 Apr 2021 19:00 Toedameda Indonesia  0.1
04 Apr 2021 14:00 Pepela Indonesia  0.1
04 Apr 2021 14:00 Batuidu Indonesia  0.1
04 Apr 2021 20:00 Oeseda Indonesia  0.1
04 Apr 2021 20:00 Namodale Indonesia  0.1
04 Apr 2021 18:00 Baa Indonesia  0.1
04 Apr 2021 15:00 Nordale Indonesia  0.1
04 Apr 2021 15:00 Korlo Indonesia  0.1
04 Apr 2021 14:00 Butuinan Indonesia  0.1
04 Apr 2021 14:00 Hala Indonesia  0.1
04 Apr 2021 14:00 Oeboeah Indonesia  0.1
04 Apr 2021 14:00 Oisina Indonesia  0.1
04 Apr 2021 14:00 Tablolong Indonesia  0.1
04 Apr 2021 14:00 Hansisi Indonesia  0.1
05 Apr 2021 00:00 Nembrala Indonesia  0.1
05 Apr 2021 00:00 Abuan Indonesia  0.1
05 Apr 2021 06:00 Boedae Indonesia  0.1
04 Apr 2021 15:00 Oenggae Indonesia  0.1
04 Apr 2021 14:00 Oetefoe-besar Indonesia  0.1
04 Apr 2021 14:00 Besdale Indonesia  0.1
04 Apr 2021 14:00 Akle Indonesia  0.1
04 Apr 2021 19:00 Ulua Indonesia  0.1
04 Apr 2021 14:00 Silain Indonesia  0.1
04 Apr 2021 14:00 Oetefoe-ketjil Indonesia  0.1
04 Apr 2021 14:00 Usulain Indonesia  0.1
05 Apr 2021 03:00 Below Indonesia  0.1
05 Apr 2021 03:00 Baah Indonesia  0.1
05 Apr 2021 07:00 Merapo Indonesia  0.1