Marine, Tropical and Tsunami Services Branch
National Program
The Tropical Cyclone program of the NWS will make some important changes to some of its products and services for the 2025 season. The 64-kt wind radii forecasts to Day 3 in the Tropical Cyclone Forecast/Advisory Product (TCM) will be extended. Issuance criteria for Tropical Cyclone Advisory Products for Potential Tropical Cyclones will be adjusted and there will be changes to the Post Tropical Cyclone Report (PSH) to Identify Top Wind Gusts more effectively. All of these changes will occur on or about May 15, 2025. For more information about these changes, please refer to these Service Change Notices.
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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Marine, Tropical and Tsunami Services Branch
1325 East-West Hwy, 13th floor
Communications Office
Silver Spring, MD 20910
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