Overall Red Tropical Cyclone for AMPHAN-20
in India, Bangladesh, Bhutan

Impact

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

Meteorological source GDACS
Glide number: TC-2020-000137-BGD
Exposed countries India, Bangladesh, Bhutan
Exposed population 33.8 million in Category 1 or higher
Maximum wind speed 269 km/h
Maximum storm surge 2.4 m (20 May 06:00 UTC)
Vulnerability High (Bangladesh)

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.
  Wind Storm surge Rainfall GDACS score
Current 167 km/h 2.4 m n.a. 2.5
Overall 269 km/h 2.4 m n.a. 2.5

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

Wind

167 km/h Current Max.

Up to 65.9 million people in Category 1 strength or higher (see SSHS)

Impact Timeline

Level N° Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Red 1 16 May 2020 06:00 167 243.2 million 65.9 million India, Bangladesh

Bulletin Timeline

Level N° 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
1 16 May 2020 06:00 Tropical storm 65 no people no people 9.8, 86.4
GREEN
1 16 May 2020 18:00 Tropical storm 93 no people no people 10.5, 86.4
GREEN
1 17 May 2020 06:00 Category 1 120 no people no people 11.7, 86.5
GREEN
1 17 May 2020 18:00 Category 1 139 no people no people 12.9, 86.5
GREEN
1 18 May 2020 06:00 Category 2 157 no people 8.3 million people 14.2, 86.6 India
RED
1 19 May 2020 06:00 Category 2 167 5.9 million people 227.9 million people 17.6, 87.8 Bangladesh
ORANGE
1 20 May 2020 06:00 Category 1 139 65.8 million people 231.5 million people 21.8, 89.2 India
GREEN
1 21 May 2020 06:00 Tropical storm 65 no people no people 24.8, 90.6 Bangladesh
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

Source: GADM and GHSL

Provinces

Source: GADM and GHSL

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.

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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.