The NSF Unidata server hosted at the Space Science and Engineering Center (SSEC) at the University of Wisconsin, Madison (unidata3.ssec.wisc.edu) has been permanently decommissioned.

Those who used the services provided by unidata3.ssec.wisc.edu should switch to the following alternate servers:

ServiceIf you usedSwitch 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!