The legacy OPC website URL permanently redirects to On or after July 9, 2019 the old URL will not work. Users must use to access the OPC website. More information is available at
PLEASE NOTE: This .shtml webpage is going to be converted to .php format on June 4, 2019. On that date you will need to replace ".shtml" with ".php" in the URL address bar. The actual page content will remain the same. More information is available at

Reference Publications

"Modern Marine Weather" by David Burch

"Weather Predicting Simplified" by Michael Carr

"Heavy Weather Avoidance and Route Design" by Captain Mike La-Li Chen and Lee S. Cheseau

"Mariner's Weather Handbook" by Steve and Linda Dashew

"Understanding Weatherfax" by Mike Harris

"Weather at Sea - Weather Forecasting Made Simple" by David Houghton

"Wind Strategy - For the Northern and Southern Hemisphere" by David Houghton and Fiona Campbell

"Weather for the Mariner" by William J. Kotsch

"On-Board Weather Handbook" by Chris Tibbs

"Instant Weather Forecasting" by Alan Watts

DISCLAIMER:  "Any reference from NWS Web server service to any non-government entity, product, service, or information does not constitute an endorsement or recommendation by the National Weather Service, the Ocean Prediction Center, or any of its employees. We are not responsible for the contents of any "off-site" web pages referenced from NWS servers."