2.6. MADIS Data


Meteorological Assimilation Data Ingest System (MADIS) consists of NOAA and non-NOAA data providers and provides observational data in a common format, with quality checks. This information is focused on METAR data.


Note: METAR data is also available via other sources (e.g., NCEP prepbufr files); METAR data from MADIS allows for verification over CONUS and OCONUS.

Recommended use

METAR data are commonly used for near-surface verification of standard meteorological variables, such as temperatures, dew point temperature, wind speed, visibility, and precipitation, and precipitation type.

File format


Location of data

Data can be accessed via ftp, OPeNDAP, Text/XML Viewer, or LDM

Access restrictions

In order to access the data, a data application must be filled out: https://madis.ncep.noaa.gov/data_application.shtml

Some of the datasets are restricted. For more details see: https://madis.ncep.noaa.gov/madis_restrictions.shtml

Spatial resolution, grid, or coverage

Point observations with locations spanning the globe

Temporal resolution

Varies based on reporting station

Starting and/or ending dates

July 2001 - present

Data latency

Archive is updated in near-realtime

Variables available

For a full list of METAR variables see: https://madis.ncep.noaa.gov/sfc_metar_variable_list.shtml

METplus Use Cases

Link to METplus Use Cases for this dataset.



Current Dataset: VxDataMADIS


Data Labels: DataTypePoint, DataLevelSurface, DataProviderNOAA, DataApplicationPrecipitation, DataApplicationShortRange, DataApplicationMediumRange