News

The next UDUNITS Community Call is scheduled for Wednesday, 4 November 2026.

The NSF Unidata THREDDS development team released the THREDDS Data Server (TDS) version 5.10 on Ocotber 20th, 2026. This release contains a number of security upgrades to third party libraries, a variety of bug fixes, and several new features and improvements. It is strongly recommended that all TDS administrators upgrade to this version. If you plan on serving GRIB messages from the upcoming RRFS, you will need to use TDS this version of the TDM and TDS.

This MetPy Monday episode starts a two-part tutorial on creating meteorological cross-sections in Python.

This MetPy Monday tutorial demonstrates how to use Herbie to download HRRR model data and plot forecast radar imagery in Python.

In case you missed it — here's a recap of news from the NSF Unidata Program Center for the months of August & September 2026.

The NSF Unidata THREDDS development team is happy to announce the release of version 5.11.0 of the netCDF-Java/Common Data Model (CDM) library. This release contains a number of enhancements, bug fixes, and 3rd party dependency updates. New features include support GRIB-2 template 3.33 and RRFS aerosol product support, upgrades to NCEP GRIB2 tables, and improving xpublish DAP2 compatibility.

Version 5.4.0 of the netCDF Operators (NCO) has been released. Some notable features include:

• All operators allow setting the netCDF4 metadata block size. 
• Many operators now optionally preserve orphaned dimensions. 
• ncclimo can now climatologize simulation ensembles. 
• ncremap tolerates absent hybrid p0/P0 variables. 

Users interested in these features should upgrade to 5.4.0.

This MetPy Monday tutorial compares streamlines, quiver plots, and wind barbs for visualizing wind and flow fields in Python.

This MetPy Monday episode completes the two-part temperature gradient tutorial by showing how to map the gradient field calculated in Part 1.

The Integrated Data Viewer (IDV) 7.1 is now available. Highlights include support for Amazon S3 data browsing, Gemini integration, and new grid diagnostics.