Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

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Greater than: 5% 10% 25% 50% 75% 90% 95% chance of exceeding river flood levels during Oct-Nov-Dec

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> 50% Major Flooding > 50% Moderate Flooding > 50% Minor Flooding < 50% Chance of Flooding Long-Range Flood Risk Not Calculated Last map update: 09/30/2023 at 07:08:10 pm EDT 09/30/2023 at 23:08:10 UTC What is UTC time? Map Help Product Description Feedback Disclaimer

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