The memo says the Data disruption was triggered by an upgrade to the Weather Data dissemination system itself, specifically a modification to a network firewall. The firewall was supposed to continue to allow Data to pass through it, but "within minutes, engineers **ticed that Data were **t traversing the firewall." The memo claims all warnings did reach the public despite the loss of the main automated delivery system, which is a questionable claim considering that many storm chasers, television meteorologists, online news sites and others in the Weather community reported disruptions in crucial radar Data and severe Weather warnings on Thursday Read more...