7:30-8:15 AM

7:30-8:15 AM Registration

8:15-8:30 AM Opening Remarks

Session 1: Meteorology of the Sierra (Chaired by Arlen Huggins)

8:30-8:55 Hydroclimatology of Sierra Nevada Precipitation. Dan Cayan, Scripps Institute of Oceanography.

8:55-9:20 Operational Hydrometeorology at the California-Nevada River Forecast Center. Robert Hartman, NWS/CNRFC Sacramento.

9:20-9:45 The Sierra Cooperative Pilot Project: Overview of Significant Findings. David Reynolds, NWS/WFO Monterey.

9:45-10:00 A Proposed Hydrometeorological Testbed for the Sierra Nevada. David Kingsmill, DRI, F. M. Ralph, B. Martner, and A. B. White.

10:00-10:15 Precipitation Patterns for Sierra Nevada Snowfall with Forecasting Applications. Alexander Tardy, NWS/WFO Sacramento.

10:15-10:30 Terrain-Induced Rotor Experiment (T-REX). Vanda Grubisic, DRI.

10:30-10:45 Local and Remote Effects of the Sierra Nevada on Frontal Evolution. W. J. Steenburgh, Univ. Utah.

Session 2: Posters (Chaired by David Kingsmill)

10:45-11:00 Poster Introductions

11:00-12:00 Poster Viewing and Discussions

--The Realtime Weather Research and Forecasting Model for the Western United States at the NOAA Cooperative Institute for Regional Prediction. William Cheng, Univ. Utah, and W. J. Steenburgh.

--An Evaluation and Discussion of Overestimated Snowfall Amounts Associated with a Winter Storm in the Northern and Central Sierra on March 14-15, 2003. Mark Deutschendorf, NWS/WFO Reno, and B. O’Hara.

--Snowmelt in the River Basins of Western Nevada: The Effects on Runoff during the 1997 Floods. Steve Goldstein, NWS/WFO Reno.

--Sierra Front Flooding. Dan Gudgel, NWS/WFO Hanford, and Jim Bagnall.

--An Assessment of Multisensor Rainfall Estimates in Radar-Poor Coverage Areas of California and Western Nevada during the 2002-2003 Cool Season. Alan Haynes, NWS/CNRFC Sacramento, D. Kitzmiller and J. J. Gourley.

--Effects of Air Circulation Patterns on Air Quality in the Lake Tahoe Basin. Julide Kahyaoglu Koracin, DRI, A. W. Gertler and J. Lewis.

--Use of Atmospheric, Dispersion and Hydrologic Modeling to Assess the Impact of Wintertime Cloud Seeding in the Tahoe and Truckee River Basins. Darko Koracin, DRI, A. Huggins and D. Boyle.

--An Automated Algorithm for Radar Beam Occultation. Carrie Langston, CIMMS/NSSL, and J. Zhang.

--GIS Analysis of Precipitation from Tropical Disturbances over Utah and Surrounding States during September 1997. David Maxwell, So. Utah Univ., M. Orgill and M. Lee.

--Downslope/High Wind Events in the Lee of the Sierra Nevada: Climatology of Environmental Conditions. Rhett Milne, NWS/WFO Reno.

--An Improvement to Data Assimilation over Complex Terrain. David Myrick, Univ. Utah, J. D. Horel and S. M. Lazarus.

--Quantitative Precipitation Forecasting of Wintertime Storms in the Sierra Nevada: Sensitivity to the Microphysical Parameterization. Ramesh Vellore, DRI, V. Grubisic and A. Huggins.

--Characteristics of a Strong Cold Front over the Intermountain Region. Gregory West, Univ. Utah, and J. Shafer.

--Merging Hydrometeorological Information for the National Digital Forecast Database. Melanie Wetzel, DRI, A. Huggins, J. Fischer, S. Chew, B. Brong, S. Keck and D. Pike.

--Rain and Snow Characteristics Near and Within the Melting Layer. Sandra Yuter, Univ. Washington, L. Nance, M. Loeffler-Mang and D. Kingsmill.

--Four-Dimensional High-Resolution National Radar Mosaic. Jian Zhang, CIMMS/NSSL, K. Howard, C. Langston, S. Qin.

12:00-12:45 PM Lunch (to be provided on-site by DRI Division of Atmos. Sci.)

Session 3: Measurement Systems and Data Assimilation (Chaired by Jim Steenburgh)

12:45-1:00 A Radar Wind Profiler Snow-Level Algorithm for NWS Forecast Applications and Climate Research. Allen White, CIRES/ETL, D. J. Gottas, P. J. Neiman, F. M. Ralph, E. T. Strem and E. J. Carter.

1:00-1:15 Summary of Wintertime QPE Results from a New VPR-Based Precipitation Algorithm for the WSR-88D. Arlen Huggins, DRI, D. Kingsmill and S. Keck.

1:15-1:30 Implementation of NSSL’s Quantitative Precipitation Estimation and Segregation Multiple Sensor System on a Nation-Wide Grid and Complications due to Complex Terrain. Steve Vasiloff, NSSL, B. Clarke, J. J. Gourley, C. Dempsey and R. Maddox.

1:30-1:45 Improving Mesoscale Forecasting Using Data from the Nevada Department of Transportation Operational Network. Darko Koracin, DRI, J. Fischer and R. Nelson.

1:45-2-00 Evaluation of ADAS Surface Analyses over the Sierras. John Horel, Univ. Utah, and D. Myrick.

Session 4: Spring/Summer Case Studies (Chaired by John Horel)

2:00-2:15 The June 5^th 1995 Great Basin Wind and Snowstorm. Mark Jackson, NWS/WFO Salt Lake City, L. B. Dunn and W. J. Steenburgh.

2:15-2:30 The Importance of Dry Downslope Air Produced by the Sierra Nevada During a Major Intermountain Cyclogenesis Event. Jason Shafer, Univ. Utah.

2:30-2:50 Break

2:50-3:05 Flash Flooding in Spanish Springs, Nevada on June 20-21, 2002. Steve Goldstein, NWS/WFO Reno, T. Cylke, G. Barbato, P. Glancy.

3:05-3:20 Case Study of the August 4^th, 2003 Thunderstorms and Tornado Signature over Western Nevada. Brian Brong, NWS/WFO Reno.

3:20-3:35 The Role of Thermally-Driven Circulations on Ozone Concentration and Transport in Yosemite National Park, Sierra Nevada. Craig Clements, Univ. Houston, S. Zhong, J. Burely, J. McLean and K. Warner.

Session 5: Fire Weather (Chaired by Tim Brown)

3:35-3:50 Predictive Services: A New Tool for Proactive Wildland Fire Management. Rick Ochoa, NIFC/BLM.

3:50-4:05 ROMAN—Realtime Observation Monitor and Analysis Network. Brian Olsen, Univ. Utah, J. Horel, M. Splitt and J. Pechmann.

4:05-4:20 A Comparison of Precipitation and Drought Indices Related to Fire Activity and Potential in the U. S. Beth Hall, DRI, and T. Brown.

4:20-4:35 Likelihood of Red Flag Warnings as Currently Defined in Nevada. Richard Woolley, BLM.

4:35-4:50 The California and Nevada Smoke and Air Committee (CANSAC): An Interagency Partnership to Meet Decision-Making Needs. Tim Brown, DRI, F. M. Fujioka and C. Fontana.

4:50-5:00 PM Workshop Wrap-Up