National Weather Service Flood Inundation Mapping
Informational Resources Catalog

A concise one-page flyer detailing the NWS rollout of high-resolution, neighborhood-level flood inundation maps.

An interactive ESRI StoryMap offering a visual overview and narrative of Flood Inundation Mapping features and real-world benefits.

A reference document addressing common questions regarding NWS FIM implementation, data availability, and interpretation.

A step-by-step visual guide demonstrating how to navigate, access, and view FIM layers within the NWPS web interface.

A comprehensive handbook detailing National Water Center visualization services, data access methods, and product specifications.

Instructions and guidelines on how to properly utilize and interpret categorical flood stage maps within the NWPS platform.

A short video tutorial walking users through finding and interacting with FIM services directly on the NWPS portal.

An overview video explaining the different types of mapping products and FIM capabilities currently offered by the NWS.

An educational video highlighting the importance, public safety value, and real-world impact of accurate flood inundation mapping.

A quick-reference table comparing the technical features and data sources of dynamic FIM services across the contiguous US.

An informational sheet summarizing the dynamic FIM capabilities, resolution, and geographic coverage for the continental US.

A comparison chart detailing the attributes, data inputs, and update frequencies of static FIM services across the continental US.

A table comparing dynamic FIM service capabilities tailored specifically for Puerto Rico and the US Virgin Islands.

Versión en español de la tabla de comparación de capacidades de servicios FIM dinámicos para Puerto Rico y las Islas Vírgenes de EE. UU.

A regional factsheet detailing dynamic FIM services, local inputs, and mapping availability for Puerto Rico and the US Virgin Islands.

Hoja informativa en español sobre los servicios FIM dinámicos y la disponibilidad de mapas para Puerto Rico y las Islas Vírgenes de EE. UU.

An overview factsheet covering dynamic Flood Inundation Mapping services available for the Hawaiian islands.

A technical table comparing the specific dynamic FIM service attributes and models applied to Hawaii.

An overview of dynamic Flood Inundation Mapping services tailored for Alaska's unique hydrology and vast geography.

A comparative breakdown of the features and data sources for dynamic FIM services available in the state of Alaska.

A detailed technical guide explaining the Height Above Nearest Drainage (HAND) methodology used to compute terrain-based flood maps.

Traducción al español de la guía técnica detallada sobre el método de mapeo de inundaciones Height Above Nearest Drainage (HAND).

Documentation explaining the creation, thresholds, and practical application of stage-based categorical flood inundation maps.

Documentation on National Weather Service Partner FIM including obtaining and using Partner FIM as well as its limitations.

A technical overview describing how Synthetic Rating Curves (SRC) are generated mathematically and utilized in modern flood mapping.

A quick reference manual designed to help users get started with navigating the NWS National GIS Viewer for spatial data.

Technical documentation tailored for developers on how to programmatically access and integrate FIM data using the NWS API.

A brief introductory video explaining the core concepts and basic principles of the Height Above Nearest Drainage mapping method.

A technical video tutorial covering the essential hydrological preprocessing steps required before computing HAND models.

An instructional video explaining how flow accumulation pathways and digital stream networks are derived in the HAND mapping process.

A tutorial video demonstrating the computation of final HAND values and the process of normalizing terrain data for accurate map generation.