Changes to the maps include:
The new Digital Flood Insurance Rate Maps (DFIRMs) include proposed changes in flood zones for the areas shown on the chart (PDF).
The revised maps are based on decades of rainfall and river gauge information, new hydraulic models, and recent topographic data.
The changes may affect mortgage loan requirements and flood insurance rates for those properties in areas proposed for adjustment. Please see the Federal Emergency Management Agency (FEMA) summary on how map changes can affect flood insurance. Other resources include: