Saint Louis University · Earth & Atmospheric Sciences   
2011 Bow Echo Workshop
Sponsored by the National Weather Service and Saint Louis University



The National Weather Service and Saint Louis University would like to thank the workshop attendees for making the 2nd Bow Echo Workshop a success. For the purpose of saving space on our system and ensuring that you receive all the appropriate files and animations for each presentation, all presentations and their files are compressed into individual zip files. We do ask that if you use any of the information within these presentations for purposes other than personal benefit, please reference the appropriate agency and/or university.



Session 1A: QLCS Near-Storm Environments

Analysis of Two Severe Wind-Producing, Null Tornado Bow Echo Events. Ray Wolf, NWS Davenport, IA [zip]

Conservation of Supercelluar Vorticity: A Possible Origin of Severe Mesovortices in the Middle to Lower Missouri River Valley. Chris Bowman, NWS Pleasant Hill, MO [zip]

Boundary Interactions with the Development of Mesovortices in the August 4th, 2008 Chicago Derecho. Tim Halbach, NWS La Crosse, WI [zip]



Session 1B: QLCS Modeling

Examination of a Pressure Surge, Gravity Wave, and Atmospheric Internal Bore Associated with the 13 March 2003 Bow Echo. Rebecca Adams-Selin, Colorado State University, Fort Collins, CO [zip]

An Investigation to Assess the Robustness of Aircraft Radar Data. Allison Schmitz, Avfuel Corporation, Ann Arbor, MI [zip]



Session 1C: SPC/OAR Webinars

Evolution of a Quasi-Linear Convective System Sampled by Phased-Array Radar. Jennifer Newman and Pam Heinselman, Univ. of Oklahoma/OAR, Norman, OK [zip]

Convective Modes Associated with Significant Severe Thunderstorms in the Contiguous United States. Rich Thompson, NWS Storm Prediction Center, Norman, OK

Climatology of Near-Storm Environments with Convective Modes for Significant Severe Thunderstorms in the Contiguous United States. Rich Thompson, NWS Storm Prediction Center, Norman, OK



Workshop I

Proper QLCS Damage Surveying Techniques, Lead by Ron Przybylinski, NWS St. Charles, MO and Ray Wolf, NWS Davenport, IA [zip]



Session 1D: The 8 May 2009 Super Derecho

Developmental Environment and Early Evolution of the 8 May 2009 Super Derecho. Steve Corfidi, NWS Storm Prediction Center, Norman, OK (webinar) [zip]

The 8 May 2009 Missouri Derecho: Mesoscale and Radar Analysis over Southwest Missouri. Jason Schaumann, NWS Springfield, MO and Ron Przybylinski, NWS St. Charles, MO [zip]

Observations and Quantification of Counter-Rotating Mesovortex Couplets within the 8 May 2009 Southern Missouri Derecho. Angela Lese, NWS Louisville, KY [zip]

Communication and the Super Derecho of 8 May 2009: A Preliminary Analysis Pat Spoden and Christine Weiglos, NWS Paducah, KY [zip]



Invited Presentation

Genesis and Damaging Potential of Bow Echo Mesovortices. Nolan Atkins, Lyndon State College, Lyndonville, VT [zip]



Session 2A: The 26 October 2010 QLCS

The 26 October 2010 Tornado Outbreak: Research Applied to Operations. Jon Chamberlain, NWS Northern Indiana [zip]

The October 26, 2010 Event Across Central Indiana. Michael Koch, NWS Indianapolis, IN [zip]

Observations and Challenges from the 24 April and 26 October 2010 QLCS Events in Central Kentucky. Theodore Funk, NWS Louisville, KY [zip]



Invited Presentation

Exploring the Existence of "Embedded Supercells" within Quasi-linear Convective Systems. Robert J. Trapp, Purdue University, West Lafayette, IN [zip]



Session 2B: Local Studies

Terrain Influences on Bow Echoes in the Central Appalachians. Kris Mattarochia, NWS Blacksburg, VA [zip]

Convective Storms Producing Winds Greater Than 70mph - Longevity, Radar Structures and Near Storm Environments. Karl Jungbluth and Jacob Beitlich, NWS Des Moines, IA [zip]



Session 2C: The 2010 New Year's Eve Outbreak

Part I: A Damage and Radar Overview of the New Year's Eve 2010 Tornado Outbreak. Fred H. Glass, NWS St. Charles, MO [zip]

Part II: Environmental Parameters Associated with the New Year's Eve Tornado Outbreak 2010. Mark F. Britt, NWS St. Charles, MO [zip]

Part III: Warning Strategies and Operational Decisions - New Year's Eve Tornado Outbreak 2010. Jim Sieveking, NWS St. Charles, MO [zip]



Session 2D: QLCS Warning Parameters

The Tornadic Squall Line Index. Doug Cramer, NWS Springfield, MO [zip]

The Utility of the Normalized Rotation Parameter to Diagnose Tornadogenesis in Quasi-Linear Convective Environments. Kurt Weber, NWS Huntsville, AL [zip]



Session 2E: The 18 June 2010 Derecho

Part I: Meteorological Analysis of the 18 June 2010 Derecho. Gino Izzi, NWS Chicago, IL [zip]

Part II: Decision Support Services Prior to the 18 June 2010 Derecho. Sam Shea, NWS Chicago, IL [zip]



Workshop II

Proper QLCS Warning Techniques, Lead by Theodore Funk, NWS Louisville, KY and Pat Spoden, NWS Paducah, KY [zip]



Cooperative Institute for Precipitation Systems · Saint Louis University · 3642 Lindell Blvd. · St. Louis, MO 63108 · gravesce[at]slu[dot]edu