Category Archives: NOAA OPC

Hurricane Force Storm over North Pacific producing 17 meter waves

An intense 937 mb storm over the west-central North Pacific is producing winds of 60-75 knots and significant wave heights to 17 meters (about 56 feet) within 90 to 240 nm southwest of the center and within 120 nm northeast … Continue reading

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What does a “Gale Warning” mean?

The National Weather Service has developed a multi-tier concept for forecasting hazardous weather which includes outlooks, watches, warnings and advisories.  Below are the visual day flag and nighttime light signals that warn of rough weather.  NOAA discontinued using the flags in … Continue reading

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NOAA’s New Marine Forecast Product Improves Weather Forecasts and Safety at Sea

  The following post was published on March 8, 2018 on By Tom Cuff, Director, NOAA’s Ocean Prediction Center NOAA’s Ocean Prediction Center (OPC) rolled out a new forecast product suite this week to provide mariners with comprehensive weather forecasts every 24 hours … Continue reading

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URGENT “Notice to Mariners” – Changes to NOAA marine products effective March 7th, 2018

By Lee Chesneau Lee is a senior marine meteorologist, lecturer, & a graduate from the University of Wisconsin (Madison).   Lee has had a distinguished career with NOAA’s National Weather Service (NWS), NOAA Satellite Service (NESDIS), U.S. Navy Ship Routing Officer … Continue reading

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