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National Weather Service Weather Forecast Office

Grand Junction, CO

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Conference Papers

The following studies were presented at the 2009 Annual American Meteorological Society Conference in Phoenix, AZ.

• AVOIDING DISASTER ACROSS WESTERN COLORADO; THE 2007-08 WINTER SEASON NEAR-RECORD SNOWFALL AND IMPACT OF THE SPRING RUNOFF
  Jeffrey D. Colton, NOAA/NWS Grand Junction, CO, J.D. Ramey Jr. (NWS GJT), A. Strautins (NWS GJT), B.A. Lawrence (NWS GJT), and M.P. Meyers (NWS GJT)

• LIGHTNING PREDICTION BY WFO GRAND JUNCTION USING MODEL DATA AND GRAPHICAL FORECAST EDITOR SMART TOOLS
  Paul R. Frisbie, NOAA/NWS Grand Junction, CO, J.D. Colton (NWS GJT), J.R. Pringle (NWS GJT), J.A. Daniels (NWS GJT), J.D. Ramey Jr. (NWS GJT) and M.P. Meyers (NWS GJT)

The following studies were presented at the 2008 American Meteorological Society Mountain Meteorology Conference in Whistler Canada

• UNIQUE SNOWFALL DISTRIBUTION OVER THE PARK RANGE AND UPPER YAMPA RIVER VALLEY DURING THE LA NINA WINTER OF 2007-2008
  Jeffrey D. Colton, NOAA/NWS Grand Junction, CO, J.D. Ramey Jr. (NWS GJT), M.P. Meyers (NWS GJT), D. Wesley (UCAR/COMET), Ian McCubbin (DRI/Storm Peak Laboratory) , Gannet Haller (DRI/Storm Peak Laboratory)
  
  
• 24 FEBRUARY 2007 SNOW EVENT OVER THE PARK RANGE OF NORTHERN COLORADO: A MICROPHYSICAL PERSPECTIVE
  Paul R. Frisbie, NOAA/NWS Grand Junction, CO, M.P. Meyers (NWS GJT), Edward H. Teets (NASA)

• SIMULATED IMPACTS OF ENHANCED CCN AND GIANT-CCN CONCENTRATIONS ON OROGRAPHIC SNOWFALL
  Stephen M. Saleeby, Dept. of Atmospheric Science, Colorado State University (CSU), Fort Collins, Colorado, William Cotton (CSU), Douglas Lowenthal (DRI Reno), Randolph Borys (DRI Reno), Melanie Wetzel (DRI Reno),
  Ian McCubbin (DRI/Storm Peak Laboratory), Michael Meyers (NWS GJT)
  

• A CLIMATOLOGICAL INVESTIGATION OF THE DIURNAL PATTERNS OF PRECIPITATION OVER THE COMPLEX TERRAIN OF WESTERN COLORADO
  Jeffrey D. Colton, NOAA/NWS Grand Junction, CO, J.D. Ramey Jr. (NWS GJT), B. Avery (NWS GJT), and M.P. Meyers (NWS GJT)
• THE FIRST MSC/COMET MOUNTAIN WEATHER COURSE
  Brad Snyder, Meteorological Service of Canada, Vancouver, British Columbia, Canada, C. Doyle, D. Wesley (UCAR/Comet), J. Cummine (Met. Svc. Canada, Winnipeg), and M.P. Meyers (NWS GJT)   
• A FORECASTER CHALLENGE: CONVECTIVELY ENHANCED WINDS IN A STRONGLY FORCED SYNOPTIC ENVIRONMENT IN COMPLEX TERRAIN
  Michael P. Meyers,  NOAA/NWS Grand Junction, CO, J. Ladue (WDTB, Norman), J. Pringle (NWS GJT), and C. Cuoco (NWS GJT)    
• A MESOSCALE HEAVY SNOW EVENT OVER THE GRAND MESA OF WESTERN COLORADO
  Paul Frisbie, NOAA/NWS Grand Junction, CO, T. Lindquist (NWS GJT), and M. P. Meyers (NWS GJT)   
• FORECASTING MIXED-LAYER HEIGHT OVER COMPLEX TERRAIN
  Daniel E. Zumpfe, NOAA/NWS Great Falls, MT, M. Chamberlain (NWS GJT), J.A. Daniels (NWS GJT), M.P. Meyers (NWS GJT), J. Snook (USDA Forest Svc), K. Zeller (USDA Forest Svc), and J. Kyle (NWS GJT)

• THE POPULATION BIAS OF SEVERE WEATHER REPORTS WEST OF THE CONTINENTAL DIVIDE
  Paul Frisbie, NOAA/NWS Grand Junction, CO
  
  
• A HEAVY SNOW EVENT DURING AN ARCTIC OUTBREAK WEST OF THE CONTINENTAL DIVIDE IN THE CENTRAL ROCKIES
  Christopher N. Jones, NOAA/NWS Riverton, WY, J.D. Colton (NWS GJT), M.P. Meyers (NWS GJT), and J.E. Nachamkin (CSU)
  
  
• A SOUTHWEST COLORADO MOUNTAIN FLASH FLOOD IN AN ENHANCED MONSOONAL ENVIRONMENT
  Brian A. Avery, NOAA/NWS Grand Junction, CO, C.N. Jones (NWS RIW), J.D. Colton (NWS GJT), and M.P. Meyers (NWS GJT)
  
  
• A MOUNTAIN WAVE EVENT WEST OF THE COLORADO PARK RANGE
  Jeffrey D. Colton, NOAA/NWS Grand Junction, CO, C.N. Jones (NWS Riverton), M.P. Meyers (NWS GJT) and Ray McAnelly (CSU)
  
  
• A RARE TORNADIC THUNDERSTORM IN NORTHEAST UTAH
  Jeffrey D. Colton, NOAA/NWS Grand Junction, CO, C.N. Jones (NWS RIW) and M.P. Meyers (NWS GJT)
  
  
• MODEL AEROSOL SENSITIVITY STUDIES AND MICROPHYSICAL INTERACTION IN AN OROGRAPHIC SNOWFALL EVENT  
  Stephen M. Saleeby, Colorado State Univ., Fort Collins, CO; and R. D. Borys (DRI), M. A. Wetzel (DRI), D. B. Simeral (DRI), M. P. Meyers (NWS GJT), W. R. Cotton (CSU), R. L. McAnelly (CSU), N. Larson (NWS GJT), and E. Heffernan (NWS GJT)
  
  
• ANOMALOUSLY LARGE SNOWFALL VARIATIONS ACROSS SMALL SPATIAL SCALES IN THE ROCKY MOUNTAIN FRONT RANGE: THE ROLES OF BLOCKING, SURFACE WINDS, AND THE ASSOCIATED THERMODYNAMIC STRUCTURE
  Douglas A. Wesley, UCAR/COMET, Boulder, CO, G.S. Poulos (NCAR), J. Snook (ATMET), and M. P. Meyers (NWS GJT)
  
  
• MESOSCALE MODEL SIMULATIONS IN QUASI-FORECAST MODE OF THE GREAT WESTERN STORM OF 16-20 MARCH 2003
  Douglas A. Wesley, UCAR/COMET, Boulder, CO, G.S. Poulos (NCAR), J. Snook (ATMET), E. Szoke (NOAA/FSL/CIRA), M. P. Meyers (NWS GJT), G. Byrd (UCAR/COMET), R. Rozumalski (NWS), and H. McIntyre (UCAR/COMET)
  
  
• MESOSCALE SNOWFALL PREDICTION AND VERIFICATION IN MOUNTAINOUS TERRAIN
  Melanie Wetzel, Desert Research Institute, Reno, NV, M.P. Meyers (NWS GJT), R. Borys (DRI), R. McAnelly (CSU), W. Cotton (CSU), A. Rossi (DRI), P. Frisbie (NWS GJT), D. Nadler (NWS HUN), D. Lowenthal (DRI), S. Cohn (NCAR), and W. Brown (NCAR)
  
  
• AN INVESTIGATION OF RECORD HEAVY LEE SIDE OROGRAPHIC SNOWFALL DURING THE GREAT WESTERN STORM OF MARCH 16-20, 2003
  Gregory S. Poulos, NCAR, Boulder, CO, J. Snook (USDA Forest Svc), D. A. Wesley (UCAR/COMET), M. P. Meyers (NWS GJT), and E. J. Szoke (NOAA/FSL/CIRA)
  
  (Full study not available at this time)
• THE OPERATIONAL IMPLICATIONS OF FORECASTING A HEAVY SNOW EVENT OVER THE CENTRAL ROCKIES IN AN ATYPICAL FLOW REGIME
  Michael P. Meyers, NOAA/NWS Grand Junction, CO, J.D. Colton (NWS GJT), R. L. McAnelly (CSU), W. R. Cotton (CSU), D. A. Wesley (UCAR/COMET), J. S. Snook (ATMET), and G. S. Poulos (ATD/NCAR)
  
  
• A ROCKY MOUNTAIN STORM. PART II: THE FOREST BLOWDOWN OVER THE WEST SLOPE OF THE NORTHERN COLORADO MOUNTAINS - OBSERVATIONS, ANALYSIS AND MODELING
  Michael P. Meyers, NOAA/NWS Grand Junction, CO, J.S. Snook (CSA, Boulder, CO), D. A. Wesley (UCAR/COMET), and G. S. Poulos (CSA, Boulder)
  
  
• EXCEPTIONAL MESOSCALE FEATURES OF THE GREAT WESTERN STORM OF MARCH 16-20, 2003
  Gregory S. Poulos, CRA/NWRA Boulder, CO, D. A. Wesley (UCAR/COMET), M. P. Meyers (NWS GJT), E.J. Szoke (FSL), J.S. Snook (CRA/NWRA), and G.P. Byrd (UCAR/COMET)
  
  
• A ROCKY MOUNTAIN STORM. PART I: THE BLIZZARD - KINEMATIC EVOLUTION AND THE POTENTIAL FOR HIGH-RESOLUTION NUMERICAL FORECASTING OF SNOWFALL
  Gregory S. Poulos, CRA/NWRA Boulder, CO, D. A. Wesley (UCAR/COMET), J.S. Snook (CRA/NWRA), and M.P. Meyers (NWS GJT)
  
  
• OPERATIONAL FIRE WEATHER SUPPORT THROUGH THE USE OF A MESOSCALE FORECAST MODEL (Full study not available at this time)
  Michael P. Meyers, NOAA/NWS Grand Junction, CO, E.M. Page (UCAR/COMET), R.L. McAnelly (CSU) and W.R. Cotton (CSU)
  
  
• OPERATIONAL USE OF MESOSCALE MODELS IN FIRE WEATHER FORECASTING (Full study not available at this time)
  Elizabeth M. Page, NOAA/NWS Boulder, CO, M.P. Meyers (NWS GJT), M. Chamberlain (NWS GJT), and R. McAnelly (CSU)
  
  
• PARAMETERIZATION OF ICE CRYSTAL CONVERSION PROCESSES DUE TO VAPOR DEPOSITION FOR MESOSCALE MODELS USING DOUBLE-MOMENT BASIS FUNCTIONS. PART I: BASIC FORMULATION AND PARCEL MODEL RESULTS
  Jerry Y. Harringtion, Colorado State University, Fort Collins, CO, M.P. Meyers (NWS GJT), R. L. Walko (CSU), and W. R. Cotton (CSU)
  
  
• A COMPARISON OF SEEDED AND NONSEEDED OROGRAPHIC CLOUD SIMULATIONS WITH AN EXPLICIT CLOUD MODEL
  Michael P. Meyers, NOAA/NWS Grand Junction, CO, P.J. DeMott (CSU), and W.R. Cotton (CSU)
  
  
• PARAMETERIZATION AND IMPACT OF ICE INITIATION PROCESSES RELEVANT TO NUMERICAL SIMULATIONS OF CIRRUS CLOUDS
  Paul J. DeMott, Colorado State University, Fort Collins, CO, M. P. Meyers (NWS GJT), and W.R. Cotton (CSU)
  
  
• NEW PRIMARY ICE-NUCLEATION PARAMETERIZATIONS IN AN EXPLICIT CLOUD MODEL
  Michael P. Meyers, NOAA/NWS Grand Junction, CO, P.J. DeMott (CSU), and W.R. Cotton (CSU)
  
  
• EVALUATION OF THE POTENTIAL FOR WINTERTIME QUANTITATIVE PRECIPITATION FORECASTING OVER MOUNTAINOUS TERRAIN WITH AN EXPLICIT CLOUD MODEL. PART I: TWO-DIMENSIONAL SENSITIVITY EXPERIMENTS
  Michael P. Meyers, NOAA/NWS Grand Junction, CO and W. R. Cotton (CSU)