The department said continuous rains and strong winds would continue over the island especially between Mannar and Trincomalee. Strong winds are expected over the northern sea.
The department asked the fishermen to abstain from putting out to sea in the northern and eastern areas.
The department said heavy rains could be expected in the Jaffna, Mullaitivu and Kilinochchi districts, as well as in the Central, Sabaragamuwa, Western, Eastern and Southern provinces today.
The storm 'MAHASEN' over Bay of Bengal has moved slightly northwestwards and lay centred at 700 km southeast of Chennai this morning, bringing welcome summer rains in several parts of the city.
However, the cyclone is expected to skip Chennai and move towards Bangladesh-Myanmar coast in the next couple of days.
Squally winds speed reaching 40-45 km per hour gusting to 60 km per hour would prevail along Andaman and Nicobar Islands during the period and sea condition would be rough to very rough.
Tropical storm Mahasen is forecast to strike Bangladesh as a severe cyclonic storm at about 21:00 GMT on 16 May. Mahasen is expected to bring 1-minute maximum sustained winds to the region of around 129 km/h (80 mph).Wind gusts in the area may be considerably higher.
According to the Saffir-Simpson damage scale the potential property damage and flooding from a storm of Mahasen's strength at landfall includes:
Storm surge generally 1.2-1.5 metres (4-5 feet) above normal.
No real damage to building structures.
Damage primarily to unanchored mobile homes, shrubbery, and trees.
Some damage to poorly constructed signs.
Some coastal road flooding and minor pier damage.
There is also the potential for flooding due to heavy rain.
This alert is provided by TropicalStorm Risk (TSR) which is sponsored by Aon Benfield, Crawford & Company and University College London (UCL).
5/13/2013
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