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Area of Convection in Indian Ocean Upgraded to Tropical Storm

14.3N 87.8E

May 11th, 2013 Category: Tropical Storms

Tropical Storm Mahasen (01B) – May 10th, 2013

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Track of Tropical Storm Mahasen  (01B) - May 11th, 2013 © Univ. of Wisconsin

Track of TC 01B

An area of convection first appeared on 4 May. It slowly tracked eastwards and organized itself into a low pressure area on 8 May.

The Joint Typhoon Warning Center (JTWC) later issued a Tropical Cyclone Formation Alert (TCFA) on 10 May as the system became more organized, followed by he India Meteorological Department (IMD) upgrading it to a well-marked low pressure area. Later the same day, JTWC issued the first warning for the storm, designating it 01B, followed by the IMD upgrading the storm into a depression, and subsequently into a deep depression. In the early hours of 11 May, IMD upgraded the storm to Cyclonic Storm status, naming it Mahasen (01B).

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