Sunday, 16 August 2009 |
| 5:00 PM-7:00 PM, Sunday, Orion Registration Opens |
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Monday, 17 August 2009 |
| 7:30 AM-6:00 PM, Monday, Orion Registration Continues throughout the Conference |
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| 8:45 AM-10:00 AM, Monday, The Canyons Session 1 Mesoscale precipitation systems I |
Chair: S. B. Trier, NCAR, Boulder, CO
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| 8:45 AM | | Welcoming Remarks
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| 9:00 AM | 1.1 | Dynamic Tropopause Mesoscale Disturbances as Triggers of Warm Season Severe Weather Episodes in the Southwest ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Lance F. Bosart, SUNY - University at Albany, Albany, NY; and J. E. Matusiak, T. J. Melino, S. R. Sukup, and E. Pytlak |
| 9:15 AM | 1.2 | Repeating patterns of precipitation and surface pressure evolution in midlatitude mesoscale convective vortices ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Eric P. James, Colorado State University, Fort Collins, CO; and R. H. Johnson |
| 9:30 AM | 1.3 | The dependence of high-precipitation supercells on preexisting airmass boundaries: a targeted modeling study ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jennifer M. Laflin, University of Nebraska, Lincoln, NE; and A. L. Houston |
| 9:45 AM | 1.4 | Mesoscale precipitation features and dynamics of a winter storm in Central Oklahoma ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jana Lesak Houser, Univ. of Oklahoma, Norman, OK ; and H. B. Bluestein |
| 10:00 AM | 1.5 | Radar reflectivity as a proxy for convective mass transport ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Gretchen L. Mullendore, University of North Dakota, Grand Forks, ND; and A. J. Homann, C. Schumacher, and K. Bevers |
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| 10:00 AM-10:30 AM, Monday, Arches/Deer Valley Coffee Break |
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| 10:30 AM-12:00 PM, Monday, The Canyons Session 2 Mesoscale precipitation systems II |
Chair: Matthew D. Parker, North Carolina State Univ., Raleigh, NC
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| 10:30 AM | 2.1 | Maintenance of mesoscale convective systems over Lake Michigan ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Nicholas D. Metz, Univ. at Albany/SUNY, Albany, NY; and L. F. Bosart |
| ![](http://ams.confex.com/static/images/flag.png) | 2.2 | Development and propagation of a narrow cold frontal rain band in the Sierra Nevada of Northern California K.C. King, DRI, Reno, NV; and M. L. Kaplan and C. Smallcomb |
| 10:45 AM | 2.3 | Convection-permitting simulations of the diurnal cycle of warm-season precipitation in the lee of the Rocky mountains ![wrf recording](/static/img/filetypes/16x16/wrf.gif) S. B. Trier, NCAR, Boulder, CO; and C. A. Davis and D. A. Ahijevych |
| 11:00 AM | 2.4 | Mesoscale convective systems crossing the Appalachian Mountains Casey E. Letkewicz, North Carolina State University, Raleigh, NC; and M. D. Parker |
| 11:15 AM | 2.5 | A climatology of convective systems over the Northeast U.S. and their structural evolution from the lee of the Appalachians to the Atlantic Coast Kelly Lombardo, Stony Brook University/SUNY, Stony Brook, NY NY; and B. A. Colle |
| 11:30 AM | 2.6 | A radar-based climatology of high precipitation events in the European Alps: 2000-2007 ![wrf recording](/static/img/filetypes/16x16/wrf.gif) James V. Rudolph, University of Colorado, Boulder, CO; and K. Friedrich and U. Germann |
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| 12:00 PM-1:30 PM, Monday, Wasatch Lunch Break |
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| 1:30 PM-2:30 PM, Monday, The Canyons Session 3 Mesoscale precipitation systems III |
Chair: Gretchen L. Mullendore, University of North Dakota, Grand Forks, ND
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| 1:30 PM | 3.1 | A climatology of high lapse rates and their influence on the occurrence (or non-occurrence) of severe weather over the central United States ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jason M. Cordeira, Univ. of Albany/SUNY, Albany, NY; and T. J. Galarneau and L. F. Bosart |
| 1:45 PM | 3.2 | Convective initiation ahead of squall lines involving small hills ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Seung-hee Kim, Univ. of California, Los Angeles, CA; and R. G. Fovell |
| 2:00 PM | 3.3 | The response of simulated nocturnal convective systems to a low-level jet ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Adam J. French, North Carolina State Univ., Raleigh, NC; and M. D. Parker |
| 2:15 PM | 3.4 | Comparison of the level of neutral buoyancy observed from soundings and radar ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Amanda J. Homann, University of North Dakota, Grand Forks, ND; and G. Mullendore, J. S. Tilley, and S. T. Jorgenson |
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| 2:30 PM-4:00 PM, Monday, Arches/Deer Valley Coffee Break with Poster Viewing |
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| 2:30 PM-4:00 PM, Monday, Arches/Deer Valley Poster Session 1 Poster Session I |
CoChair: Sandra E. Yuter, North Carolina State University, Raleigh, NC
Chair: Robert Fovell, Univ. of California, Los Angeles, CA
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| | P1.1 | Study of microphysical and thermodynamic structures within supercell thunderstorms Katja Friedrich, University of Colorado, Boulder, CO; and J. Wurman and K. A. Kosiba |
| | P1.2 | Megers between isolated supercells and quasi-linear convective systems: a preliminary study Adam J. French, North Carolina State Univ., Raleigh, NC; and M. D. Parker |
| | P1.3 | Mobile sounding measurements of the near storm environment during VORTEX2 Matthew D. Parker, North Carolina State Univ., Raleigh, NC; and A. J. French, C. E. Letkewicz, M. J. Morin, K. Rojowsky, D. Stark, and G. H. Bryan |
| | P1.4 | NRL COAMPS Real-Time Forecast during VOCALS-Regional Experiment Shouping Wang, NRL, Monterey, CA; and Q. Jiang, L. W. O'Neill, X. Hong, H. Jin, W. T. Thompson, and X. Zheng |
| | P1.5 | A spatial and temporal distribution of convection over the Northeast U.S. during the warm season John Murray, Stony Brook University, Stony Brook, NY; and B. A. Colle |
| | P1.6 | Sensitivities of storm divergence and stratiform rain production to microphysics and cumulus parameterizations Larry J. Hopper Jr., Texas A&M University, College Station, TX; and C. Schumacher |
| | P1.7 | Possible stretching mechanisms producing the tornado vortex in the mid-level Masahisa Nakazato, MRI, Tsukuba, Ibaraki, Japan; and O. Suzuki, K. Kusunoki, H. Yamauchi, and H. Y. Inoue |
| | P1.8 | Diurnal cycle of monsoon thunderstorms in Arizona and New Mexico from spaceborne and surface-based radar Christina Wall, University of Utah, Salt Lake City, UT; and E. J. Zipser and C. Liu |
| | P1.9 | Mesoscale Convective Systems along the Mei-Yu Front Over South China Sea and Taiwan Weixin Xu, University of Utah, Salt Lake City, UT; and E. Zipser |
| | P1.10 | Structure of Subtropical Mesoscale Convective Vortex during SoWMEX/TiMREX Hsiao-Wei Lai, National Taiwan University, Taipei, Taiwan; and C. A. Davis and B. J. D. Jou |
| | P1.11 | Numerical investigation of internal wave-vortex interactions Tyler D. Blackhurst, Brigham Young University, Provo, UT; and J. C. Vanderhoff |
| | P1.12 | Simulations of internal gravity waves approaching a critical level Brian Patrick Casaday, Brigham Young University, Provo, UT; and J. C. Vanderhoff |
| | P1.13 | A Case Study of a Large-Amplitude Inertia–Gravity Wave over the Southeast James Ruppert, SUNY/University at Albany, Albany, NY; and L. F. Bosart |
| | P1.14 | An intercomparison of T-REX mountain wave simulations James Doyle, NRL, Monterey, CA; and S. Gabersek, L. R. Bernardet, J. M. Brown, A. Doernbrack, E. Filaus, V. Grubisic, Q. Jiang, D. J. Kirshbaum, O. Knoth, S. Koch, I. Stiperski, S. Vosper, and S. Zhong |
| | P1.15 | Three-dimensional characteristics of stratospheric mountain waves during T-REX James Doyle, NRL, Monterey, CA; and Q. Jiang, R. B. Smith, W. Cooper, V. Grubisic, and J. B. Jensen |
| | P1.16 | The Complex Bora Flow in the Lee of Southern Velebit Ivana Stiperski, Meteorological and Hydrological Service, Zagreb, Croatia; and B. Ivancan-Picek and V. Grubisic |
| | P1.17 | Beyond Long's solution: a Newton solver for nonlinear mountain waves with rotation Kevin C. Viner, Texas A&M University, College Station, TX; and C. C. Epifanio |
| | P1.18 | Whistler Mountain climatology: Temperature lapse rates in complex terrain Lisa N. Erven, University of British Columbia, Vancouver, BC, Canada; and I. McKendry |
| | P1.19 | Influence of turbulence and dynamics on dust transport in Owens Valley Qingfang Jiang, UCAR Visiting Scientist, NRL, Monterey, CA; and M. Liu and J. Doyle |
| | P1.20 | Statistics and dynamics of aircraft encounters of turbulence over Greenland Todd P. Lane, University of Melbourne, Melbourne, Vic., Australia; and J. D. Doyle, R. D. Sharman, M. A. Shapiro, and C. D. Watson |
| | P1.21 | High resolution modeling of convective outflow in complex terrain Andrew J. Newman, Colorado State University, Fort Collins, CO; and R. H. Johnson |
| | P1.22 | Interaction of a mountain lee wave with a basin cold pool George Young, Penn State Univ., University Park, PA; and B. Gaudet, N. L. Seaman, and D. R. Stauffer |
| | P1.23 | Structure and evolution of numerically simulated misocyclones along a snowband over the Shonai region on 25 January 2008 Wataru Mashiko, MRI, Tsukuba, Japan; and S. Hayashi, K. Kusunoki, H. Y. Inoue, K. Bessho, S. Hoshino, M. Nakazato, and H. Yamauchi |
| | P1.24 | Snow-to-liquid ratio variability and prediction at a high-elevation site in Utah's Wasatch Mountains Trevor I. Alcott, University of Utah, Salt Lake City, UT; and W. J. Steenburgh |
| | P1.25 | Climatology of Fronts and Associated Surface Baroclinic Zones in the Great Lakes Region Neil Laird, Hobart & William Smith Colleges, Geneva, NY; and M. Payer, R. Maliawco, and E. G. Hoffman |
| | P1.26 | A study of the effect of the Great Lakes on deep convective systems Thomas E. Workoff, University of Illinois, Urbana, IL; and D. A. R. Kristovich |
| | P1.27 | Summer midtropospheric perturbations over the U.S. northern plains: Climatology and NAM forecasts Shih-Yu Wang, Iowa State University, Ames, IA; and T. C. Chen |
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| 4:00 PM-5:00 PM, Monday, The Canyons Session 4 Mesoscale precipitation systems IV |
Chair: David B. Mechem, University of Kansas, Lawrence, KS
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| 4:00 PM | 4.1 | Distant effects of recurving tropical cyclones on rainfall production in midlatitude convective systems ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Russ S. Schumacher, NCAR, Boulder, CO, and Texas A&M University, College Station, TX; and T. J. Galarneau and L. F. Bosart |
| 4:15 PM | 4.2 | An analysis of the pre-storm environment of intense convective systems in West Africa ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Stephen D. Nicholls, Rutgers University, New Brunswick, NJ; and K. I. Mohr |
| 4:30 PM | 4.3 | Numerical simulations of the evolution of long-lived episodes of organized convection in Africa ![wrf recording](/static/img/filetypes/16x16/wrf.gif) A. G. Laing, NCAR, Boulder, CO; and C. A. Davis |
| ![](http://ams.confex.com/static/images/flag.png) | 4.4 | PAPER WITHDRAWN
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| 4:45 PM | 4.4A | Mesoscale Radiatively-Induced Anvil Spreading Steven K. Krueger, University of Utah, Salt Lake City, UT; and M. A. Zulauf |
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| 5:00 PM-6:00 PM, Monday, The Canyons Session 5 Transferring research results to operations |
Chair: Russ S. Schumacher, NCAR, Boulder, CO
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| 5:00 PM | 5.1 | Evaluation of WRF model forecasts of environmental parameters for severe-weather forecasting from the NOAA HWT Spring Experiments ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Michael C. Coniglio, NOAA/NSSL, Norman, OK; and K. L. Elmore, J. S. Kain, S. J. Weiss, M. Xue, and M. L. Weisman |
| 5:15 PM | 5.2 | A Prototype future hurricane prediction system: Realtime cloud-resolving ensemble data assimilation and forecasting during the 2008 Atlantic season Yonghui Weng, Texas A&M University, College Station, TX; and F. Zhang, J. Gamache, and F. D. Marks |
| 5:30 PM | 5.3 | Assessing the total mountain drag in the Met Office weather forecast model: how sensitive is it to horizontal resolution? Stuart Webster, Met Office, Exeter, Devon, United Kingdom; and S. Vosper, A. Brown, and S. Smith |
| 5:45 PM | 5.4 | Utilizing high-resolution WRF model output to improve NWS forecasts in complex terrain Brett E. McDonald, NOAA/NWSFO, Riverton, WY |
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Tuesday, 18 August 2009 |
| 8:00 AM-10:00 AM, Tuesday, The Canyons Session 6 Theoretical and modeling studies of mesoscale processes I |
Chair: Craig Epifanio, Texas A&M University, College Station, TX
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| 8:00 AM | 6.1 | Cooked boundaries: results from numerical experiments ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Anthony E. Reinhart, University of Nebraska, Lincoln, NE; and A. L. Houston |
| 8:15 AM | 6.2 | An idealized comparison of one-way and two-way grid nesting ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Lucas M. Harris, University of Washington, Seattle, WA; and D. R. Durran |
| 8:30 AM | 6.3 | The life cycle of an undular bore and its interaction with a shallow, intense cold front ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Daniel C. Hartung, University of Wisconsin, Madison, WI; and J. A. Otkin, J. E. Martin, and D. D. Turner |
| 8:45 AM | 6.4 | The numerical simulation of infrasound generated by convective storms ![wrf recording](/static/img/filetypes/16x16/wrf.gif) David A. Schecter, NorthWest Research Associates, Redmond, WA; and M. E. Nicholls |
| 9:00 AM | 6.5 | Horizontal scale selection associated with mesoscale gravity wave/convection coupling ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Todd P. Lane, University of Melbourne, Melbourne, Vic., Australia; and F. Zhang |
| 9:15 AM | 6.6 | Gravity wave propagation through time-dependent shear ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Julie C. Vanderhoff, Brigham Young University, Provo, UT |
| 9:30 AM | 6.7 | Predictability and dynamics of a squall line and bow echo event during BAMEX ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Christopher Melhauser, Penn State Univ., University Park, PA; and F. Zhang, M. Weisman, and D. P. Jorgensen |
| 9:45 AM | 6.8 | Assessment of the vertical exchange of heat, moisture, and momentum above a wildland fire using observations and mesoscale simulations ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Joseph J. Charney, USDA Forest Service, East Lansing, MI; and M. T. Kiefer and D. Keyser |
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| 10:00 AM-10:30 AM, Tuesday, Arches/Deer Valley Coffee Break |
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| 10:30 AM-12:00 PM, Tuesday, The Canyons Session 7 Theoretical and modeling studies of mesoscale processes II |
Chair: H. Dawn Reeves, NOAA/NSSL, Norman, OK
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| 10:30 AM | | 7.1 has been moved. New paper number 4.4 A
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| 10:45 AM | 7.2 | Aerosol indirect effects on cold pools and the feedbacks to subsequent convective development ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Susan C. van den Heever, Colorado State University, Fort Collins, CO |
| 11:00 AM | 7.3 | Modeling aerosol impacts on convective storms in different environments ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Rachel L. Storer, Colorado State University, Fort Collins, CO; and S. C. van den Heever and G. Stephens |
| 11:15 AM | 7.4 | The role of cumulus congestus in the tropical western Pacific David B. Mechem, University of Kansas, Lawrence, KS; and A. J. Oberthaler |
| 11:30 AM | 7.5 | A Coastally Trapped Wind Reversal Along the Gulf of Alaska ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Emily L. Niebuhr, University of Wisconsin, Madison, WI; and M. Hitchman |
| 11:45 AM | 7.6 | A Framework for Understanding and Modeling Mesoscale Weather Systems Using the Ensemble of Multiple Parameterizations of Physical Processes at the Land Surface and in the Atmosphere ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Zong-Liang Yang, University of Texas, Austin, TX; and G. Y. Niu and X. Jiang |
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| 12:00 PM-1:15 PM, Tuesday, Wasatch Lunch Break |
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| 1:15 PM-1:45 PM, Tuesday, The Canyons Session 8 Invited lecture |
CoChair: Sandra E. Yuter, North Carolina State University, Raleigh, NC
Lecturer: Roger M. Wakimoto, NCAR, Boulder, CO
Chair: Robert Fovell, Univ. of California, Los Angeles, CA
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| 1:45 PM-3:30 PM, Tuesday, The Canyons Session 9 Theoretical and modeling studies of mesoscale processes III |
Chair: George H. Bryan, NCAR, Boulder, CO
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| 1:45 PM | 9.1 | Observations and simulations of a long-lived tornadic mesocyclone that formed in a low-CAPE environment with PV banners spawned by the Colorado Front Range ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Bart Geerts, Univ. of Wyoming, Laramie, WY; and T. Andretta, J. Vogt, Y. Wang, and S. Luberda |
| 2:00 PM | 9.2 | Importance of horizontally inhomogeneous environmental initial conditions to very short range thunderstorm forecasts ![wrf recording](/static/img/filetypes/16x16/wrf.gif) David J. Stensrud, NOAA/NSSL, Norman, OK; and J. Gao |
| 2:15 PM | 9.3 | Some Lessons on the Predictability of Convective Systems over a 36 h Timeframe ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Morris L. Weisman, NCAR, Boulder, CO ; and K. Manning and D. Dowell |
| 2:30 PM | 9.4 | Aircraft measurements and numerical simulations of gravity waves in the extratropical UTLS region during the START08 field campaign ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Fuqing Zhang, Pennsylvania State University, University Park, PA; and M. Zhang, K. P. Bowman, L. Pan, and E. Atlas |
| 2:45 PM | 9.5 | Observations of tropospheric, convectively generated gravity waves from atmospheric profiling platforms ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Daniel R. Adriaansen, University of North Dakota, Grand Forks, ND; and M. J. Alexander and G. L. Mullendore |
| 3:00 PM | 9.6 | Generation of inertia-gravity waves from jets within vortex dipoles ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Shuguang Wang, Columbia University, New York, NY; and F. Zhang |
| 3:15 PM | 9.7 | Mechanisms for spontaneous gravity-wave generation within a dipole vortex ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Chris Snyder, NCAR, Boulder, CO; and R. Plougonven and D. J. Muraki |
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| 3:30 PM-4:00 PM, Tuesday, Arches/Deer Valley Coffee Break |
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| 4:00 PM-6:00 PM, Tuesday, The Canyons Session 10 Results from recent field research programs |
Chair: Bart Geerts, University of Wyoming, Laramie, WY
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| 4:00 PM | 10.1 | Overview of SoWMEX/TiMREX ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Wen-Chau Lee, NCAR, Boulder, CO; and B. J. D. Jou and C. R. Chen |
| 4:15 PM | 10.2 | Preliminary results from the SoWMEX/TiMREX sounding network ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Richard H. Johnson, Colorado State University, Fort Collins, CO; and P. E. Ciesielski, Z. Finch, and A. J. Newman |
| 4:30 PM | 10.3 | What is the difference between orographic precipitation in the Europe Alps and Taiwan? ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Katja Friedrich, University of Colorado - Boulder, Boulder, CO; and T. M. Weckwerth, W. C. Lee, U. Germann, and L. Panziera |
| 4:45 PM | 10.4 | A numerical study of the evolving convective boundary layer and orographic circulation around the Santa Catalina Mountains in Arizona. Part I: circulation without deep convection ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Cory Demko, University of Wyoming, Laramie, WY; and B. Geerts and Q. Miao |
| 5:00 PM | 10.5 | A re-evaluation of the role of subsidence in valley and basin warming ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Thomas Haiden, Central Institute for Meteorology and Geodynamics, Vienna, Austria |
| 5:15 PM | 10.6 | Unexpectedly strong convection under an inversion-topped marine boundary layer ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Sandra E. Yuter, North Carolina State University, Raleigh, NC; and D. B. Mechem, C. W. Fairall, and W. A. Brewer |
| 5:30 PM | 10.7 | Characteristics of tropical cyclogenesis predictability: Perspectives from T-PARC/TCS08 ![wrf recording](/static/img/filetypes/16x16/wrf.gif) James Doyle, NRL, Monterey, CA; and C. M. Amerault, C. A. Reynolds, and H. Jin |
| 5:45 PM | 10.8 | HYMEX, an experimental program dedicated to the hydrological cycle in the Mediterranean ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Philippe J. Drobinski, Institut Pierre Simon Laplace/Laboratoire de Météorologie Dynamique, Palaiseau, France; and V. Ducrocq and P. Lionello |
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| 6:00 PM-7:30 PM, Tuesday, The Canyons Gathering for HyMeX Meeting |
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Wednesday, 19 August 2009 |
| 8:00 AM-10:00 AM, Wednesday, The Canyons Session 11 Orographic, coastal and other thermally driven mesoscale circulation systems I |
Chair: C. David Whiteman, University of Utah, Salt Lake City, UT
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| 8:00 AM | 11.1 | Urban land-use and pollution impacts on mesoscale circulations and convection over Houston ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Gustavo Carrió, Colorado State University, Fort Collins, CO; and W. R. Cotton |
| 8:15 AM | 11.2 | Mesoscale analysis and WRF model verification of a low-level jet, bay breeze, and undular bore at the Howard University Beltsville Research Site ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Kevin Vermeesch, SSAI, Greenbelt, MD; and M. Weldegaber, B. B. Demoz, and D. Venable |
| 8:30 AM | 11.3 | Large-eddy simulation of sea and lake breezes and sensitivity to forcing mechanisms ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Erik T. Crosman, University of Utah, Salt Lake City, UT; and J. D. Horel |
| 8:45 AM | 11.4 | Warm-season MCS initiation and development influenced by land/lake thermodynamic contrasts near the Great Lakes ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Alan F. Srock, University at Albany/SUNY, Albany, NY; and L. F. Bosart |
| 9:00 AM | 11.5 | Dynamics of Diurnal Variation of Stratus Clouds in Monterey Bay Area ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Shouping Wang, NRL, Monterey, CA; and Y. Jin, Q. Jiang, and Q. Wang |
| 9:15 AM | 11.6 | A mesoscale model intercomparison of coastal refractivity ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Tracy Haack, NRL, Monterey, CA; and C. Wang, S. Garrett, A. Glazer, and R. E. Marshall |
| 9:30 AM | 11.7 | Impact of the Andes Cordillera on a mid-latitude cold front ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Bradford S. Barrett, United States Naval Academy, Annapolis, MD |
| 9:45 AM | 11.8 | Orographic effects on coastal cyclogenesis in New England Thomas E. Robinson Jr., University of Massachusetts, Lowell, MA; and F. P. Colby |
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| 10:00 AM-10:30 AM, Wednesday, Arches/Deer Valley Coffee Break |
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| 10:30 AM-12:00 PM, Wednesday, The Canyons Session 12 Orographic, coastal and other thermally driven mesoscale circulation systems II |
Chair: Scott A. Braun, NASA/GSFC, Greenbelt, MD
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| 10:30 AM | 12.1 | Climatological and dynamical evolution of a warm-season coastal jet in the New York Bight region ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Brian A. Colle, Stony Brook University / SUNY, Stony Brook, NY; and D. R. Novak |
| 10:45 AM | 12.2 | Characteristics and dynamic aspects of Chilean coastal jet ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Qingfang Jiang, UCAR Visiting Scientist, NRL, Monterey, CA; and S. Wang and L. W. O'Neill |
| 11:00 AM | 12.3 | Multi-season observational study of precipitation structures along the Oregon Cascade windward slope ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Justin A. Crouch, North Carolina State University, Raleigh, NC; and S. E. Yuter |
| 11:15 AM | 12.4 | The detection and significance of diurnal pressure and Potential Vorticity anomalies east of the Rockies ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Yanping Li, Yale Univ., New Haven, CT; and R. B. Smith |
| 11:30 AM | 12.5 | Isothermalcy in a basin atmosphere produced by nocturnal cold air intrusions ![wrf recording](/static/img/filetypes/16x16/wrf.gif) C. David Whiteman, University of Utah, Salt Lake City, UT; and S. W. Hoch and M. Lehner |
| 11:45 AM | 12.6 | Linear theory calculations for the sea breeze in a background wind: The equatorial case ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Tingting Qian, Texas A&M Univ., College Station, TX; and C. C. Epifanio and F. Zhang |
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| 12:00 PM-1:30 PM, Wednesday, Sundance Committee Luncheon |
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| 12:00 PM-1:30 PM, Wednesday, Wasatch Lunch Break |
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| 1:30 PM-2:30 PM, Wednesday, The Canyons Session 13 Mountain waves and obstacle flows |
Chair: Michael Coniglio, NOAA/NSSL, Norman, OK
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| 1:30 PM | 13.1 | Forecasts of persistent valley cold pools in the Bonneville Basin by a mesoscale model ![wrf recording](/static/img/filetypes/16x16/wrf.gif) H. Dawn Reeves, NOAA/NSSL, Norman, OK; and D. J. Stensrud |
| 1:45 PM | 13.2 | Observations and modeling of breaking waves in the lee of the Medicine Bow Mountains ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jeffrey R. French, University of Wyoming, Laramie, WY; and S. Haimov, V. Grubisic, M. Xiao, and L. D. Oolman |
| 2:00 PM | 13.3 | Trapped Lee Wave Interference in Presence of Surface Friction Ivana Stiperski, Meteorological and Hydrological Service, Croatia, Zagreb, Croatia; and V. Grubisic |
| 2:15 PM | 13.4 | Resonant wave-wave instability in rotating and nonhydrostatic mountain waves ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Kevin C. Viner, Texas A&M University, College Station, TX; and C. C. Epifanio and D. J. Muraki |
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| 2:30 PM-4:00 PM, Wednesday, Arches/Deer Valley Coffee Break with Poster Viewing |
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| 2:30 PM-4:00 PM, Wednesday, Arches/Deer Valley Poster Session 2 Poster session II |
CoChair: Robert G. Fovell, Univ. of California, Los Angeles, CA
Chair: Sandra E. Yuter, North Carolina State University, Raleigh, NC
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| | P2.1 | Simulations of environmental conditions conducive to formation of lake-to-lake bands Joanna T. George, South Dakota School of Mines and Technology, Rapid City, SD; and M. R. Hjelmfelt, W. J. Capehart, and D. A. R. Kristovich |
| | P2.2 | Numerical simulation of impacts of the Great Lakes on cold frontal passages Timothy S. Axford, South Dakota School of Mines and Technology, Rapid City, SD; and M. R. Hjelmfelt, W. J. Capehart, and D. A. R. Kristovich |
| | P2.3 | Mesoscale GEM-LAM modeling of atmospheric refractivity in coastal environments Anna Glazer, EC, Dorval, QC, Canada; and T. Haack, J. Mailhot, and S. Gaudreault |
| | P2.4 | Assessment of Remote Automated Weather Station (RAWS) observations Xia Dong, University of Utah, Salt Lake City, Utah; and J. D. Horel |
| | P2.5 | Sensitivity of surface temperature analyses to background and observation errors Daniel Tyndall, University of Utah, Salt Lake City, UT; and J. Horel |
| | P2.6 | DART/WRF: A community mesoscale ensemble data assimilation facility Jeffrey Anderson, NCAR, Boulder, CO; and N. Collins, J. Hacker, G. S. Romine, C. Snyder, H. Liu, T. Hoar, D. C. Dowell, and R. Torn |
| | P2.7 | Design of artificial rain system by means of sea water vapor equipment heated by sunlight Hideyo Murakami, Tohwa University, Fukuoka-City, Japan |
| | P2.8 | Proposal for sunlight shield system to decrease cyclone power Hideyo Murakami, Tohwa University, Fukuoka-City, Japan |
| | P2.9 | A numerical study of the evolving convective boundary layer and orographic circulation around the Santa Catalina Mountains in Arizona. Part II: Interaction with deep convection Cory Demko, University of Wyoming, Laramie, WY; and B. Geerts |
| | P2.10 | Observations of spatially-variable lake-breeze movement in the vicinity of Chicago, IL Jason M. Keeler, University of Illinois, Urbana, IL; and D. A. R. Kristovich |
| | P2.11 | The mesoscale kinetic energy spectrum of a baroclinic life cycle Michael L. Waite, University of Victoria, Vic., BC, Canada; and C. Snyder |
| ![](http://ams.confex.com/static/images/flag.png) | P2.12 | PAPER WITHDRAWN
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| | P2.13 | Air mass characterization at the Whistler Mountain air chemistry site John P. Gallagher, University of British Columbia, Vancouver, BC, Canada; and I. G. McKendry |
| | P2.14 | Characteristics and Numerical Simulations of Atmospheric boundary layer heights in the arid regions of Northwest China Minjin Ma, University of Utah and Lanzhou University, Salt Lake City, UT; and Z. Pu, S. Wang, and Q. Zhang |
| | P2.15 | Preferential Storm Pathways and Mountain Precipitation over the Intermountain West Matthew E. Jeglum, University of Utah, Salt Lake City, UT; and W. J. Steenburgh |
| | P2.16 | Idealized simulation of a Great Basin cyclone and attendant fronts Gregory L. West, University of Utah, Salt Lake City, UT; and W. J. Steenburgh and J. B. Olson |
| | P2.17 | Climatology of Lake-Effect Precipitation Systems over the Great Salt Lake, UT and Lake Tahoe, CA/NV Neil Laird, Hobart & William Smith Colleges, Geneva, NY; and B. Albright, S. Ganetis, J. Popp, and A. Stieneke |
| | P2.18 | WRF model simulations of tropical convection observed during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) Kathrin Wapler, German Weather Service; and T. P. Lane, P. T. May, C. Jakob, M. J. Manton, and S. T. Siems |
| | P2.19 | Mesoscale aspects of tropical cyclogenesis from extratropical precursors over the North Atlantic during 2004–2008 Thomas J. Galarneau Jr., SUNY, Albany, NY; and L. Bosart, C. A. Davis, and R. McTaggart-Cowan |
| | P2.20 | Effect of cloud processes on hurricane tracks: Idealized simulations and operational forecasts Robert G. Fovell, Univ. of California, Los Angeles, CA; and D. J. Boucher |
| | P2.21 | Dynamics and predictability of Hurricane Humberto (2007) revealed from ensemble analysis and forecasting Jason Sippel, NASA/GSFC, Greenbelt, MD; and F. Zhang |
| | P2.22 | Idealized simulations of the impact of dry Saharan Air Layer air on Atlantic hurricanes Scott Braun, NASA/GSFC, Greenbelt, MD; and J. Sippel and D. S. Nolan |
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| 4:00 PM-6:00 PM, Wednesday, The Canyons Session 14 Structure and evolution of tropical and extratropical cyclones I |
Chair: Brian A. Colle, Stony Brook University / SUNY, Stony Brook, NY
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| 4:00 PM | 14.1 | Discrete Frontal Propagation over the Sierra/Cascade Mountains and Intermountain West ![wrf recording](/static/img/filetypes/16x16/wrf.gif) W. James Steenburgh, University of Utah, Salt Lake City, UT; and C. R. Neuman, G. L. West, and L. F. Bosart |
| 4:15 PM | 14.2 | The effects of small-scale turbulence on maximum hurricane intensity ![wrf recording](/static/img/filetypes/16x16/wrf.gif) George H. Bryan, NCAR, Boulder, CO; and R. Rotunno |
| 4:30 PM | 14.3 | Comparison of an analytical and a numerical model for hurricane potential intensity ![wrf recording](/static/img/filetypes/16x16/wrf.gif) George H. Bryan, NCAR, Boulder, CO; and R. Rotunno |
| 4:45 PM | 14.4 | Hurricane Helene (2006): A case of Saharan Air Layer influence? ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Scott Braun, NASA/GSFC, Greenbelt, MD; and C. L. Shie, J. Sippel, and D. S. Nolan |
| 5:00 PM | 14.5 | Tropical Storm Debby: Genesis dynamics and the relevance of the Saharan air layer ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jason Sippel, NASA/GSFC, Greenbelt, MD; and S. Braun |
| 5:15 PM | 14.6 | The impact of Saharan Air Layer on tropical cyclone genesis and intensification S.-H. Chen, Univ. of California, Davis, CA; and C. T. Cheng, S. H. Wang, and J. P. Chen |
| 5:30 PM | 14.7 | Evolution of tangential and radial flows of Typhoon Nari (2001) at landfall ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Ming-Jen Yang, National Central University, Jhongli City, Taiwan; and T. C. C. Wang and C. Y. Weng |
| 5:45 PM | 14.8 | Do Tropical Cyclones Intensify by WISHE? Michael T. Montgomery, NPS, Monterey, CA; and R. K. Smith, S. V. Nguyen, and J. Persing |
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Thursday, 20 August 2009 |
| 8:00 AM-10:00 AM, Thursday, The Canyons Session 15 Structure and evolution of tropical and extratropical cyclones II |
Chair: Jason Sippel, NASA/GSFC, Greenbelt, MD
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| 8:00 AM | 15.1 | Sting jets and the diagnosis of conditional symmetric instability ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Oscar Martínez-Alvarado, University of Reading, Reading, Berks., United Kingdom; and S. L. Gray |
| 8:15 AM | 15.2 | Life cycle and mesoscale frontal structure of an Intermountain cyclone ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Gregory L. West, University of Utah, Salt Lake City, UT; and W. J. Steenburgh |
| 8:30 AM | 15.3 | The Overland Reintensification of Hurricane Danny (1997) ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Nick P. Bassill, University of Wisconsin, Madison, WI; and M. C. Morgan |
| 8:45 AM | 15.4 | Defining the Lifecycle of the Extratropical Transition of Tropical Cyclones using the Deviation Angle Variance Technique for Remotely-Sensed Imagery ![wrf recording](/static/img/filetypes/16x16/wrf.gif) David E. Kofron, Univ. of Arizona, Tucson, AZ; and M. F. Pineros, E. A. Ritchie, and J. S. Tyo |
| 9:00 AM | 15.5 | Adjoint-derived forecast sensitivity study of the extratropical transition of Floyd (1999) ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Michael C. Morgan, Univ. of Wisconsin, Madison, WI |
| 9:15 AM | 15.6 | A numerical modeling study of the microphysical processes leading to tropical cyclogenesis under different environmental conditions Andrew B. Penny, University of Arizona, Tucson, AZ; and E. A. Ritchie |
| 9:30 AM | 15.7 | An analysis of tropical cyclone formations in the South China Sea during the late season ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Yung-Lan Lin, National Taiwan University, Taipei, Taiwan; and C. S. Lee |
| 9:45 AM | 15.8 | Relating Convective Intensity Proxies to Tropical Cyclone Intensity Changes Using 10 Years of TRMM Data ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Ellen Ramirez, University of Utah, Salt Lake City, UT; and H. Jiang |
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| 10:00 AM-10:30 AM, Thursday, Arches/Deer Valley Coffee Break |
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| 10:30 AM-12:30 PM, Thursday, The Canyons Session 16 Structure and evolution of tropical and extratropical cyclones III |
Chair: Jim Steenburgh, University of Utah, Salt Lake City, UT
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| 10:30 AM | 16.1 | Impact of lapse rates upon low-level rotation in idealized storms ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Matthew D. Parker, North Carolina State Univ., Raleigh, NC |
| 10:45 AM | 16.2 | The development of surface signatures of mesoscale convective vortices ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Christopher A. Davis, NCAR, Boulder, CO; and T. J. Galarneau |
| 11:00 AM | 16.3 | The development and intensification of multiple misocyclones in shallow cumulus convection over the warm ocean during winter cold outbreak ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Tetsuya Takemi, Kyoto University, Uji, Kyoto, Japan; and H. Y. Inoue, K. Kusunoki, and K. Bessho |
| 11:15 AM | 16.4 | Microphysical-dynamical interactions in an idealized tropical cyclone simulation ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Steve Herbener, Colorado State University, Ft. Collins, CO; and W. R. Cotton |
| 11:30 AM | 16.5 | Application of adjoint-derived sensitivity gradients to tropical cyclone intensification ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Brett T. Hoover, University of Wisconsin, Madison, WI; and M. C. Morgan |
| 11:45 AM | 16.6 | Multi-scale vortex interaction during genesis of Hurricane Dolly (2008) ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Juan Fang, Nanjing University, China, Nanjing, China; and F. Zhang |
| 12:00 PM | 16.7 | Top-down vs bottom-up genesis of tornadoes and tropical cyclones ![wrf recording](/static/img/filetypes/16x16/wrf.gif) William R. Cotton, Colorado State University, Fort Collins, CO |
| 12:15 PM | 16.8 | The genesis and maintenance of a strong tornadic vortex through the process of vorticity confinement Gregory J. Tripoli, University of Wisconsin, Madison, WI; and M. L. Buker |
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| 12:30 PM-1:45 PM, Thursday, Wasatch Lunch Break |
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| 1:45 PM-3:15 PM, Thursday, The Canyons Session 17 Mesoscale predictability and data assimilation I |
Chair: S.-H. Chen, Univ. of California, Davis, CA
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| 1:45 PM | 17.1 | A statistical analysis on the predictability of tropical cyclogenesis ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Dianna N. Nelson, Univ. of Wisconsin, Madison, WI; and M. C. Morgan |
| 2:00 PM | 17.2 | Assessing the impact of Airborne Doppler Lidar wind profiles on hurricane track and intensity forecasts Lei Zhang, Univ. of Utah, Salt Lake City, UT; and Z. Pu and B. Gentry |
| 2:15 PM | 17.3 | Error and uncertainty in ensemble predictions of tropical storms ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Jeffrey Anderson, NCAR, Boulder, CO; and C. Snyder, H. Liu, and J. Hacker |
| 2:30 PM | 17.4 | Application of a WRF mesoscale ensemble data assimilation system to severe weather events during spring 2009 ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Dustan M. Wheatley, CIMMS/Univ. of Oklahoma, Norman, OK; and M. Coniglio and D. J. Stensrud |
| 2:45 PM | 17.5 | The impact of assimilating retrieved total precipitable water and sounding data from AIRS and MODIS on severe weather simulations ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Yi-Chin Liu, University of California, Davis, CA; and S. H. Chen |
| 3:00 PM | 17.6 | Examination of the impact of variable terrains on surface data assimilation Zhaoxia Pu, University of Utah, Salt Lake City, UT |
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| 3:15 PM-3:45 PM, Thursday, Arches/Deer Valley Coffee Break |
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| 3:45 PM-5:00 PM, Thursday, The Canyons Session 18 Mesoscale predictability and data assimilation II |
Chair: Zhaoxia Pu, University of Utah, Salt Lake City, UT
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| 3:45 PM | 18.1 | Modeling extremely cold stable boundary layers over interior Alaska using a WRF FDDA system ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Brian J. Gaudet, Penn State University, University Park, PA; and D. R. Stauffer, N. L. Seaman, A. Deng, J. E. Pleim, R. Gilliam, K. Schere, and R. A. Elleman |
| 4:00 PM | 18.2 | Impact of the variations of precipitation particle parameters within the same microphysics scheme in radar data assimilation using EnKF data assimilation technique ![wrf recording](/static/img/filetypes/16x16/wrf.gif) Nusrat Yussouf, CIMMS, Norman, OK; and D. J. Stensrud |
| ![](http://ams.confex.com/static/images/flag.png) | 18.3 | Error growth at the convective scale Giovanni Leoncini, University of Reading, Reading, Berks., United Kingdom; and R. S. Plant and S. Gray |
| 4:15 PM | 18.4 | Flow-dependent, inexpensive, high-resolution ensembles for Coupled Ensemble Prediction Xiaodong Hong, NRL, Monterey, CA; and C. Bishop, T. R. Holt, J. Doyle, P. Martin, and Q. Jiang |
| 4:30 PM | 18.5 | Exploring the predictability of mesoscale cyclogenesis using ensemble data assimilation P. Alexander Reinecke, NRL, Monterey, CA; and D. Durran and J. Doyle |
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| 4:45 PM-4:50 PM, Thursday Conference Ends |
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