Date: Mon, 26 Apr 2004 08:46:32 -0600 (MDT) From: Bob Rozumalski Subject: Announcement: National WES case study #16 now available Greetings All, I am pleased to announce another new addition to the National Case Study Library: http://strc.comet.ucar.edu/csl National WES case study #16 Title: Supercell Interactions with Outflow Boundaries Authors: Steven Cobb and Bernard Meisner SIMULATION OBJECTIVES The purpose of the simulation is to: * Provide practice assuming warning forecast responsibility with limited knowledge of pre-storm environment. * Provide opportunities to distinguish between tornadic and non-tornadic supercell storms that are interacting with an outflow boundary. * Facilitate an exchange of ideas between forecasters with varying experience. SIMULATION OVERVIEW Since this event occurred over the Memorial Day weekend, it provides an opportunity to play out a scenario where a forecaster or group of forecasters are asked to come into an event "cold" as if called in for overtime. The trainees will be given a briefing prior to assuming warning forecast responsibility and are required to acquire some familiarity with the situation using the available data. EVENT SUMMARY At the end of a long Memorial Day weekend, severe thunder- storms developed along the dryline that stretched south across the Midland CWA. A late-morning convective complex had exited the eastern portions of the CWA but sent a large outflow boundary westward toward the advancing dryline. Numerous supercells formed during the early afternoon along the dry- line with some eventually interacting with the westward moving outflow boundary. Reports of large hail were common from the supercells and several tornadoes were reported. Case #16 is available on DVD along with a companion simulation guide from the SOO/STRC National Case Study Library: http://strc.comet.ucar.edu/csl Let me know if you have any questions. Regards, Bob +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Robert A. Rozumalski NWS National SOO Science and Training Resource Coordinator COMET/UCAR PO Box 3000 Phone: 303.497.8356 Boulder, CO 80307-3000 FAX: 303.497.8491 SOO/STRC Home Page: http://strc.comet.ucar.edu +++++++++++++++++++++++++++++++++++++++++++++++++++++++++