Date: Wed, 17 Mar 2004 13:58:08 -0700 (MST) From: Bob Rozumalski Subject: Announcement: New National WES case study available To: allsoos@mailhost.comet.ucar.edu Cc: archives@mailhost.comet.ucar.edu MIME-Version: 1.0 Content-MD5: 8nr5ItycwEB8XSv2djmo/g== Greetings Everybody, I'm pleased to announce a new addition to the National Case Study Library: Case 11: A Short-lived Pulse Thunderstorm Event Author : Jeffrey M. Medlin - SOO/MOB Case Summary: On 02 August 2002, isolated pulse severe thunderstorms developed within a weak vertical wind shear and high thermodynamic instability environment (CAPE > 3500 J kg-1 ) over portions of southeast Mississippi and southwest Alabama. The event yielded five severe thunderstorms out of thirty-four total thunderstorms in a 1.5 h period. In this simulation, the radar warning meteorologist is tasked with warning responsibility just minutes before the onset of explosive deep convection. The simulation is allowed to persist until it is evident that an organized outflow boundary and the penetrating sea-breeze is responsible for the majority of additional thunderstorm initiation. The case is designed to be a 'Real-Time' simulation and ranges between 02 August 2002, 1831-2004 UTC. The simulation evaluates the radar-warning meteorologist in two primary areas: 1) pulse severe storm interrogation skills and 2) time management skills while trying to issue warnings, provide follow-up statements to existing warnings and continually monitor for newly developing severe storms. The total completion time for the simulation is estimated at 120 minutes. This includes both a 10 minute pre-briefing and a 20 minute post-briefing. The distraction of having to use multiple radars has been omitted as a necessary requirement in this simulation so that the focus remains on the development of pulse severe storm interrogation skills. Lastly, it is recognized that not having the ability to request vertical reflectivity cross sections is a limiting factor of the overall case delivery. However, this simulation is a good exercise is a limiting factor to the overall case delivery. However, this simulation is a good exercise to illustrate the use of the ALL-Tilts functionality via. a space loop of integrated reflectivity and storm-relative velocity information so that the kinematic flow structure can be equally incorporated into the warning decision. The case 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 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++