Hi - the SPNHC site (www.spnhc.org | www.geo.ucalgary.ca/spnhc/) will be off-line the weekend of May 29-30, starting about 8am MST on May 29. Our building electricity is being disconnected for repairs to the high voltage transformers and switches etc. We expect all systems to be back on-line early on Monday May 31 at the latest. JRG