The NSF Unidata server hosted at the Space Science and Engineering Center (SSEC) at the University of Wisconsin, Madison (unidata3.ssec.wisc.edu) will be permanently decommissioned on April 26, 2024.

Those using services provided by unidata3.ssec.wisc.edu can switch to using the following alternate servers:

ServiceIf you useSwitch to
McIDAS ADDEadde.ssec.wisc.eduadde.ucar.edu
IDD/LDM Upstreamidd.ssec.wisc.eduidd.unidata.ucar.edu
HTTP access to IDD Dataatm.ucar.edu

Please reach out to us at support@unidata.ucar.edu if you have any questions!