Tropical Cyclone ENAWO – Post Event Report 14 March 2017

The African Risk Capacity monitors tropical cyclone activity in the South-West Indian Ocean (SWIO) and relies on Africa RiskView, a disaster risk modelling platform that uses satellite-based and other geo-information to forecast wind speed and storm surge height and estimate population affected and economic loss. These modelled losses are the underlying basis of the insurance policies issued by the ARC Insurance Company Limited, the financial affiliate of the ARC Agency, which pools risk across the continent.
Name Event Number Naming Date Last report as a cyclone Countries affected
ENAWO 09 03/03/2017 11/03/2017 Madagascar
  • Windfields & Surge Depth 
  • Population Affected 

The following map shows the wind fields of the tropical cyclone. Note that wind speeds are only recorded if the storm was classified as tropical cyclone (peak wind speed over 35 kts)..

The following map shows the storm surge depth of the tropical cyclone. Note that surge are only recorded if the storm was classified as tropical cyclone (peak wind speed over 35 kts)..

Based on windspeed and surge depth, Africa RiskView calculates the potential number of people affected by the tropical cyclone. The table below shows the number of people affected (by different categories of wind speed).

Location / Category Population affected
MADAGASCAR
ANTANANARIVO
Category 1 (74-95mph) 161359 2.5%
ANTSIRANANA
Category 1 (74-95mph) 827392 49.9%
Category 2 (95-110mph) 510834 30.8%
Category 3 (111-129mph) 187724 11.3%
Category 4 (130-156mph) 7243 0.4%
MAHAJANGA
Category 1 (74-95mph) 591958 24.4%
Category 2 (95-110mph) 159281 6.6%
Category 3 (111-129mph) 17720 0.7%
TOAMASINA
Category 1 (74-95mph) 642351 17.7%
Category 2 (95-110mph) 178395 4.9%
Category 3 (111-129mph) 57023 1.6%