The Meteorological Assimilation Data Ingest System (MADIS), developed by The National Oceanic and Atmospheric Administration’s (NOAA) Office of Atmospheric Research (OAR) and the National Weather Service (NWS), extends NOAA’s observational networks by collecting, integrating, quality controlling (QC), and distributing observations from NOAA and non-NOAA organizations. MADIS leverages partnerships with international agencies; federal, state, and local agencies (e.g. state Departments of Transportation); universities; volunteer networks; and the private sector (e.g. airlines, railroads) to integrate observations from their stations with those of NOAA to provide a finer density, higher frequency observational database for use by the greater meteorological community. MADIS went live in July of 2001, providing a common interface for accessing 50+ observational types from Mesonet’s, Maritime, METAR, SAO, Profiler, RAOD, and automated aircraft data feeds. Today MADIS offers over 400 observations types and has extended it’s feeds to include climate, Mobile Platform Environmental Data (MoPED), snow, Radiometer, Sodar, satellite, and metadata. MADIS plays a significant role as an observational infrastructure piece in NWS’ plans for a Weather Ready Nation (WRN). The MADIS presentation and discussion will focus on where MADIS is today as a system and it’s transition from Initial Operating Capability (IOC) to Final Operating Capability at NWS, the obstacles in attaining FOC, what MADIS will look like at FOC, and what is envisioned for MADIS post FOC.