The Joint Typhoon Warning Centre
Covering the seas of South East Asia - The Pacific Ocean - The Indian Ocean
https://metocph.nmci.navy.mil/jtwc.php
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The National Hurricane Centre
Covering the Atlantic and Eastern Pacific Oceans
http://www.nhc.noaa.gov/
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In addition to the above many other countries have
Tropical Storm warning services specific to providing
early warning to their own peoples.
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Technology in the form of satellite imagery has improved
the plotting and forecasting of the movement of
Tropical Storms - Within hours, the current coordinates of the
the storm are now available to cruisers who have access
to the internet and email.
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