The AMPS Archives
Note (2021-11-09):
AMPS Archive moves to NCAR's "Campaign Storage".
AMPS Archive holdings can be accessed through the NCAR Climate Data Gateway.
For questions and further information, please contact
Kevin Manning at kmanning@ucar.edu or Jordan Powers at powers@ucar.edu.
NCAR Climate Data Gateway access to AMPS archived GRIB data.
The AMPS archive may be freely accessed through the Climate Data Gateway at NCAR. Data prior to 2017 is still being indexed and catalogued, but recent years can be found at:
Check back for older data....
Or....
NEW: try our experimental
to generate a customized list of URLs for direct download of AMPS GRIB files.
Recent AMPS full model (WRF) output files in NetCDF format
We maintain a rolling archive of the full model output from recent months. These files are not indexed (i.e., not listed at the above Gateway page), but may be accessed directly via full URL. URLs are constructed according to the pattern:
Where:
- <YYYYMMDDHH> and <YYYYMM> reference the forecast initialization time (UTC). We have initializations at HH=00 and and HH=12 UTC.
- <FFF> is the three-digit forecast lead time, in hours past the initialization time. Grids 01 and 02 have 3-hourly output out to 120 hours; grids 03, 05, and 06 have hourly output out to 39 hours. Grid 04 does not exist.
- <GG> is the two-digit model domain (grid).
For example a complete URL to download the 36-hour forecast on domain 2 from the forecast initialized on 19 Mar 2024 at 12 UTC would look like:
- https://tds.ucar.edu/thredds/fileServer/datazone/amps/NETCDF/202403/2024031912/wrfout_d02_2024031912_f036.nc
Newer data are available daily; older data are scrubbed every few weeks.
Real-time access to AMPS GRIB datasets.
A subset of fields, in GRIB (Edition 1) format, is available online for the past few days, at the AMPS web page: