Category Archives: Weather Routing

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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High Wind and Wave Events Crossing the Gulf Stream

Crossing the Gulf Stream where ocean currents can exceed 2 knots takes some skill and if you try in under certain weather conditions, could be dangerous for any size vessel.  High wind and wave events can occur under certain conditions … Continue reading

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Hurricane Force Storm Forecast for Central North Atlantic

A weak low will move off the USEC near Cape Hatteras Saturday evening then move eastward and deepen rapidly and develop storm to hurricane force winds of 55-70 knots and seas to 9 meters (30 ft) south and southwest of … Continue reading

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Omega Block developing over eastern North Atlantic

The current North Atlantic upper-air pattern is developing  an Omega block over the northeastern North Atlantic. This pattern gets its name because this upper air pattern looks like the Greek letter omega (Ω). Omega blocks tend to have two cut-off … Continue reading

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What is the risk of encountering a tropical storm or hurricane during your Caribbean cruise?

                      Tropical cyclones are storms that originate over tropical and subtropical waters during the summer and fall seasons and are classified as follows: Tropical Depression:A tropical cyclone with maximum sustained … Continue reading

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Storm low over the south-central North Atlantic

A deep 987mb low over the central North Atlantic at 33N latitude is producing winds 35-50 knots with seas to 34 feet (10.4 meters) west of the center.  The low is forecast to slowly drift towards the southeast and gradually … Continue reading

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West Pacific stormtracks may delay westbound shipping

Strong Arctic high pressure building over Siberia eastward will suppress stormtracks far to the south across the western North Pacific during the next several days.  This will likely result in delays to west-bound traffic from the Panama Canal to Far … Continue reading

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Strong High Pressure block building over Bering Sea and Gulf of Alaska

Just as there is currently a strong blocking high pressure over the northeastern North Atlantic, so is there a building high block over the Bering Sea and Gulf of Alaska shunting lows far to the south in the eastern North … Continue reading

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Strong High Pressure over Northeast Atlantic

Strong high pressure during the next couple of days over the northeastern North Atlantic will drift slowly towards the S-SE keeping low pressure systems near or southward of 40N latitude.  This will open up an opportunity for great circle weather … Continue reading

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