A brief report on Cyclone Mora, Bangladesh

Tropical cyclone MORA struck the east coast of Bangladesh on May 30, 2017. The cyclone made landfall in Cox’s Bazar at around 3 AM during the time of low tide with a wind speed of around 130 km/hr. As the landfall time was during the low tide, the surge height was low. BUET's modelling team started monitoring the cyclone from its formation stage and predicted the possible inundation threat along the coast 24 hours before the cyclone made landfall (cyclone MORA model generated animation). The required data for this prediction was collected online from the global sources. BUET prediction closely matched with the prediction by Bangladesh Meteorological Department (BMD), a government agency solely responsible to issue cyclone warning in Bangladesh. However, the spatial scale of BUET prediction (upazila level) was finer than the BMD prediction (district level). As the actual surge height of cyclone MORA was low due to landfall timing, the damage was also low. BUET modelling team later simulated a scenario which showed that had the cyclone made landfall few hours later than its actual landfall time, the surge height would be significantly high. The track of cyclone MORA, its landfall location and impact zone is within the DECCMA high risk zone due to storm surge hazard and is one of the identified climatic hotspot. BUET is trying to work together with BMD to enrich them with additional real time data of cyclone (what BUET is generating) which will help the government to reduce loss and damage from cyclone.

Posted 21/06/2017 15:37 by Anisul Haque (BUET)

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