Category Archives: NOAA OPC

North Pacific Hurricane Force Storm Warning

A developing low over the central North Pacific will deepen rapidly over the next 24-36 hours as it moves ENE then NE over the east-central  North Pacific south of the Aleutians. Expecting winds of 50-70 knots with seas building to … Continue reading

Posted in NOAA OPC, Ocean Storms | Tagged , , , | Leave a comment

Hurricane Force Storm south of Greenland

An intense North Atlantic Storm centered south of Greenland is producing winds of 55-75 knots with significant wave heights to 52 feet (16 meters) within 240 nm south of the center as it moves northeastward at about 20 knots.  According to … Continue reading

Posted in NOAA OPC, Ocean Storms | Tagged , , , , , | Leave a comment

Tropical Storm Pablo forms southwest of Azores

A new tropical cyclone has formed within a larger extratropical cyclone in the northeastern Atlantic. Pablo is a very small-scale tropical cyclone, but satellite data clearly show a well-defined but small circulation with 40-kt winds embedded within the larger low. … Continue reading

Posted in NOAA OPC, Ocean Storms, Tropical Cyclones | Tagged , , , , | Leave a comment

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

Posted in NOAA OPC, Ocean Storms | Tagged | Leave a comment

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

Posted in Meteorology, NOAA Marine Products, NOAA OPC, Weather Wisdom | Tagged , , | Leave a comment

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

  The following post was published on March 8, 2018 on gCaptain.com 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

Posted in NOAA Marine Products, NOAA OPC | Tagged , , | 1 Comment

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

Posted in Meteorology, NOAA Marine Products, NOAA OPC, Weather Routing | Tagged , , , | Leave a comment