The EWR Wx Alert pages are an archive of automated real-time and manually created weather alerts emanating from the Ephemerata Weather Radar Project monitoring operations. In summer, EWR monitors severe weather and distributes emails and Twitter posts to subscribed parties, and posts the alerts in the archive. In winter, we manually post local warnings and weather discussions from Environment Canada, the US National Weather Service, or our own analyses. See The Ephemerata Weather Radar Project weather alerts archive