Upcoming changes to high seas marine and hurricane products

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Upcoming changes to high seas marine and hurricane products

The National Weather Service will be making a few changes to high seas marine and hurricane products on or about May 15, 2025. Click each link below for more information:

Replacing the Imperial Unit Feet with the Metric Unit Meter in National Marine Center High Seas Text and Graphical Products
Extending the 64-kt Wind Radii Forecasts to Day 3 in the Tropical Cyclone Forecast/Advisory Product (TCM)
Changing the Issuance Criteria for Tropical Cyclone Advisory Products for Potential Tropical Cyclones

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