Public Information Statement
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
731 NOUS41 KILN 011949 PNSILN OHZ051-020800- Public Information Statement National Weather Service Wilmington OH 349 PM EDT Wed Oct 1 2025 ...CHANGES IN FLOOD CATEGORY LEVELS AT THE NWS RIVER FORECAST POINTS ALONG THE GREAT MIAMI RIVER AT PIQUA AND TROY, OH EFFECTIVE OCTOBER 29, 2025... Effective Tuesday October 29, 2025, river flood categories for the Great Miami River at Piqua and Troy will change. These changes were due to an in depth analysis and creation of flood inundation maps for these locations. The changes in categories were closely coordinated with the Miami Conservancy District, Miami County Emergency Management Agency, and city officials. These changes have no effect at all on FEMA floodplain maps, nor on flood insurance. The new critical levels for Troy are: Action stage remains the same at 9.5 feet. Flood stage/minor flood level remains the same at 12.0 feet. Moderate flood level will be lowered to 13 feet, from the existing Moderate flood level of 14.5 feet. Major flood level will be lowered to 17 feet, from the existing Major flood level of 18.5 feet. The levee protecting portions of Troy would be overtopped at stages just above 17 feet. Information is available at the following location: https://water.noaa.gov/gauges/tryo1 The new critical levels for Piqua are: Action stage remains the same at 11.5 feet. Flood stage/minor flood level remains the same at 14.0 feet. Moderate flood level will be lowered to 16.0 feet, from the existing Moderate flood level of 19.0 feet. Major flood level will be lowered to 19.0 feet, from the existing Major flood level of 29.0 feet. The levee protecting portions of Piqua would be overtopped at stages just above 27 feet. However, there are areas outside of levee protection that incur major flooding at 19.0 feet. Information is available at the following location: https://water.noaa.gov/gauges/piqo1 The National Weather Service welcomes public feedback. If you have any questions or comments on this change, please contact: Julia Dian-Reed Service Hydrologist, NWS Wilmington OH julia.dian-reed@noaa.gov $$