Upcoming changes to high seas marine and hurricane products

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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

NEW: Probabilistic Tropical Cyclone Storm Surge (P-Surge) Model Upgrade: Effective April 29, 2025

Creation of P-Surge products for Hawaii that account for surge, tide, and waves. This represents the first time that P-Surge will provide real-time guidance for the Hawaii domain.

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