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Western Region Technical Memoranda
These Technical Memoranda contain many figures, which may take time to load. For convenience, separate links have been created for the figures rather than embedding them in the body of the document.

The National Weather Service (NWS) Western Region (WR) Subseries provides an informal medium for the documentation and quick dissemination of results not appropriate, or not yet ready, for formal publication. The series is used to report on work in progress, to describe technical procedures and practices, or to relate progress to a limited audience. These Technical Memoranda will report on investigations devoted primarily to regional and local problems of interest.

Below is a complete list of all published Technical Memoranda for Western Region. All available Technical Memoranda have been scanned into pdf format and linked for ease of use. For those not linked, there are no hard or soft copies available in the archive.


  1. A Century of Weather in Death Valley, CA: 1911-2011. Chris Stachelski, January 2013
  1. The Climate of Winnemucca, Nevada. Ray Martin, June 2012
  1. The Climate of Ely, Nevada. Ray Martin, June 2012
  1. The Climate of Elko, Nevada. Ray Martin, June 2012
  1. 2011 Wildfire in the Mountainous Terrain of Southeast Arizona: Verification of Empirical Formulas used to Estimate 1-Year through 10-Year Peak Discharge from Post-Burn Watersheds and Associated Increased Flash Flood Potential of Post-Burn Hyper-Concentrated Flows. William Reed, Mike Schaffner, Chad Kahler, and Erin Boyle, May 2012
  1. The Presidents' Day 2005 Tornadoes in the Southern Sacramento Valley of Northern California. James H. Matthews, September 2009
  1. Effects of Wildfire in the Mountanous Terrain of Southeast Arizona: Empirical Formulas to Estimate from 1-Year through 10-Year Peak Discharge from Post-Burn Watersheds. William B. Reed and Mike Schaffner, July 2008
  1. Hazardous Weather Climatology for Arizona. Craig Shoemaker and Jeffrey T. Davis, February 2008
  1. The Climate of Bakersfield, California. Chris Stachelski and Gary Sanger, February 2008
  1. The Climate of Fresno, California. Chris Stachelski and Gary Sanger, March 2008
  1. Effects of Wildfire in the Mountainous Terrain of Southeast Arizona: An Empirical Formula to Estimate 5-Year Peak Discharge from Small Post-Burn Watersheds . William B. Reed and Mike Schaffner, June 2007
  1. Forecaster's Handbook for Extreme Southwestern California Based On Short Term Climatological Approximations: Part II - Wind Effects on Terrestrial and Marine Enviornments . Ivory J. Small, December 2006
  1. Forecaster's Handbook for Extreme Southwestern California Based On Short Term Climatalogical Approximations: Part I - The Marine Layer and Its Effect On Precipitation and Heating . Ivory J. Small, December 2006
  1. Climate of Reno, Nevada. Brian O'Hara, October 2006
  1. Climate of San Diego, California. Noel M. Isla, Jennifer L. Lee, Third Edition, March 2006
  1. Climate of Prescott, Arizona. Bob Fogarty, Mike Staudenmaier, Jr., 1st Revision by Mike Staudenmaier, Jr. January 2009
  1. Climate of Flagstaff, Arizona. 6th Revision. Mike Staudenmaier, Jr., Reginald Preston(R), Paul Sorenson(R), Revised by Mike Staudenmaier, Jr., January 2009
  1. Climate of Sacramento, California. Revised by: Laura A. Bevan and George Cline, June 2005
  1. Climate of Las Vegas, Nevada. Revised by: Andrew S. Gorelow , January 2005 Previous Edition Paul H. Skrbac, December 1999
  1. Climate of San Diego, California. Revised by: Emmanuel M. Isla, Steve Vanderburg, Christopher Medjber, Daniel Paschall. December 2004
  1. The Lewis and Clark Expedition 1803-1806, Weather, Water and Climate. Vernon Preston, December 2004
  1. The Lewis and Clark Expedition 1803-1806, Weather, Water and Climate: Journals 1803-1804. Vernon Preston, December 2004
  1. The Lewis and Clark Expedition 1803-1806, Weather, Water and Climate: Journals 1805-1806. Vernon Preston, December 2004
  1. The Lewis and Clark Expedition 1803-1806, Weather, Water and Climate: Illustrations. Vernon Preston, December 2004
  1. Prediction of Heavy Snow Events in the Snake River Plain Using Pattern Recognition and Regression Techniques. Thomas Andretta and William Wojcik. October 2003
  1.  Sulphur Mountain Doppler Radar: A Performance Study. Los Angeles/Oxnard WFO. August 2001
  1.  Climate of Sacramento, California. Laura Masters-Bevan. December 2000 (7th Revision)
  1.  Climate of Sheridan, Wyoming. Jeffrey J. Zeltwanger, Sally Springer, Mark H. Strobin. March 2001
  1.  Climate of Billings, Montana. Jeffrey J. Zeltwanger and Mark H. Strobin. November 2000
  1.  Analysis of Radiosonde Data for Spokane, Washington. Rocco D. Pelatti. November 2000
  1. Climate of Miles City, Montana. David A. Spector and Mark H. Strobin. April 2000
  1. Climate of Los Angeles, California. David Bruno, Gary Ryan, with assistance from Curt Kaplan and Jonathan Slemmer. January 2000
  1. Climate of Las Vegas, Nevada. Paul H. Skrbac. December 1999
  1. Climate of San Jose, California. Miguel Miller. April 1999
  1. 1985-1998 North Pacific Tropical Cyclones Impacting the Southwestern United States and Northern Mexico: An Updated Climatology. Armando L. Garza. January 1999
  1. Climate of Seattle, Washington. Dana Felton. November 1998
  1. Climate of San Diego, California. Thomas E. Evans, III and Donald A. Halvorson. October 1998
  1. Creation and Maintenance of a Comprehensive Climate Data Base. Eugene Petrescu. August 1998
  1. Conditional Symmetric Instability Methods of Operational Diagnosis and Case Study of 23-24 February 1994 Eastern Washington/Oregon Snowstorm. Gregory A. DeVoir. May 1998
  1. Inferenced Oceanic Kelvin/Rossby Wave Influence on North American West Coast Precipitation. Martin E. Lee and Dudley Chelton. April 1998
  1. Climate of Eureka, California. Alan H. Puffer. February 1998
  1. A Composite Study Examining Five Heavy Snowfall Patterns for South-Central Montana. Jonathan D. Van Ausdall and Thomas W. Humphrey. February 1998
  1. Northwest Oregon Daily Extremes and Normals. Clinton C. D. Rockey, October 1997
  1. Climate of Tucson, Arizona. John R. Glueck, October 1997
  1. Climate of Eugene, Oregon. Clinton C. D. Rockey, April 1997
  1. The Northeast Nevada Climate Book. Edwin C. Clark, March 1997. (First Revision - January 1998 - Andrew S. Gorelow and Edwin C. Clark
  1. A Western Region Guide to the Eta-29 Model. Mike Staudenmaier, Jr., March 1997
  1. Climatology of Cape for Eastern Montana and Northern Wyoming. Heath Hockenberry and Keith Meier, January 1997
  1. WSR-88D VAD Wind Profile Data Influenced by Bird Migration over the Southwest United States. Jesus A. Haro, January 1997
  1. Climate of Great Falls. Montana. Matt Jackson and D. C. Williamson, December 1996
  1. Climate of Pocatello, Idaho. Joe Heim, October 1996
  1. Operational Applications of the Real-time National Lightning Detection Network Data at the NWSO Tucson, AZ. Darren McCollum, David Bright, Jim Meyer, and John Glueck, September 1996
  1. Downslope Winds of Santa Barbara, CA. Gary Ryan, July 1996
  1. Climate of Portland, Oregon. Clinton C. D. Rockey, May 1996
  1. Significant Weather Patterns Affecting West Central Montana. Joe Lester, May 1996
  1. The 6 July 1995 Severe Weather Events in the Northwestern United States: Recent Examples of SSWEs. Eric C. Evenson, April 1996
  1. Climate of Astoria, Oregon. Mark A. McInerney, January 1996
  1. Climate of Las Vegas, Nevada. Paul H. Skrbac and Scott Cordero, December 1995
  1. Some Climatological and Synoptic Aspects of Severe Weather Development in the Northwestern United States. Eric C. Evenson and Robert H. Johns, October 1995
  1. Storm Relative Isentropic Motion Associated with Cold Fronts in Northern Utah. Kevin B. Baker, Kathleen A. Hadley, and Lawrence B. Dunn, July 1995
  1. Fog Climatology at Spokane, Washington. Paul Frisbie, July 1995
  1. Washington State Tornadoes. Treste Huse, July 1995
  1. Santa Ana Winds and the Fire Outbreak of Fall 1993. Ivory Small, June 1995
  1. The 10 February 1994 Oroville Tornado--A Case Study. Mike Staudenmaier, Jr., April 1995
  1. Forecasting Minimum Temperatures in the Santa Maria Agricultural District. Wilfred Pi and Peter Felsch, December 1994
  1. Climate of Kalispell, Montana. Chris Maier, December 1994
  1. Climate of Yakima, Washington. Greg DeVoir, David Hogan, and Jay Neher, December 1994
  1. Climate of Santa Barbara, California. Gary Ryan, December 1994
  1. Climate of Wenatchee, Washington. Michael W. McFarland, Roger G. Buckman, and Gregory E. Matzen, March 1994
  1. Climate of San Luis Obispo, California. Gary Ryan, February 1994
  1. Convective and Rotational Parameters Associated with Three Tornado Episodes in Northern and Central California. John P. Monteverdi and John Quadros, September 1993
  1. Utilization of the Bulk Richardson Number, Helicity and Sounding Modification in the Assessment of the Severe Convective Storms of 3 August 1992. Eric C. Evenson, September 1993
  1. Climate of Pendleton, Oregon. Claudia Bell, August 1993
  1. A Case Study of the Operational Usefulness of the Sharp Workstation in Forecasting a Mesocyclone-Induced Cold Sector Tornado Event in California. John P. Monteverdi, March 1993
  1. NWS Winter Weather Workshop in Portland, Oregon. Various Authors, December 1992
  1. Forecasting Heavy Snow Events in Missoula, Montana. Mike Richmond, May 1992
  1. Creating MOS Equations for RAWS Stations Using Digital Model Data. Dennis D. Gettman, December 1991
  1. WeatherTools. Tom Egger, October 1991
  1. Emergency Operational Meteorological Considerations During an Accidental Release of Hazardous Chemicals. Peter Mueller and Jerry Galt, August 1991
  1. Idaho Zone Preformat, Temperature Guidance, and Verification. Mark A. Mollner, July 1991
  1. Preliminary Analysis of the San Francisco Rainfall Record: 1849-1990. Jan Null, May 1991
  1. A Northern Utah Soaker. Mark E. Struthwolf, February 1991
  1. Hydrotools. Tom Egger. January 1991
  1. Stratus Surge Prediction Along the Central California Coast. Peter Felsch and Woodrow Whitlatch, December 1990
  1. Meteorological Factors Contributing to the Canyon Creek Fire Blowup, September 6 and 7, 1988. David W. Goens, June 1990
  1. The Las Vegas McCarran International Airport Microburst of August 8, 1989. Carven A. Scott, June 1990
  1. A Collection of Papers Related to Heavy Precipitation Forecasting. Western Region Headquarters, Scientific Services Division, August 1989
  1. Forecast Guidelines For Fire Weather and Forecasters -- How Nighttime Humidity Affects Wildland Fuels. David W. Goens, February 1989
  1. Preliminary Analysis of Cloud-To-Ground Lightning in the Vicinity of the Nevada Test Site. Carven Scott, November 1988
  1. An Investigation of the 24 September 1986 "Cold Sector" Tornado Outbreak in Northern California. John P. Monteverdi and Scott A. Braun, October 1988
  1. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1987. Roger L. Cross and Kenneth B. Mielke, September 1988
  1. An Inexpensive Solution for the Mass Distribution of Satellite Images. Glen W. Sampson and George Clark, September 1987
  1. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1986. Roger L. Cross and Kenneth B. Mielke, September 1987
  1. Heavy Rains and Flooding in Montana: A Case for Slantwise Convection. Glenn R. Lussky, April 1987
  1. Preliminary Lightning Climatology Studies for Idaho. Christopher D. Hill, Carl J. Gorski, and Michael C. Conger, April 1987
  1. The Effects of Eastern North Pacific Tropical Cyclones on the Southwestern United States. Walter Smith, August 1986
  1. A Mesoscale Convective Complex Type Storm over the Desert Southwest. Darryl Randerson, April 1986
  1. Radid Interpretation Guidelines. Roger G. Pappas, March 1986
  1. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1985. E.B. Gunther and R.L. Cross, March 1986
  1. The MCC - An Overview and Case Study on Its Impact in the Western United States. Glenn R. Lussky, April 1987
  1. NWR Voice Synthesis Project: Phase I. Glen W. Sampson, January 1986
  1. Large Scale Patterns Associated with Major Freeze Episodes in the Agricultural Southwest. Ronald S. Hamilton and Glenn R. Lussky, December 1985
  1. Great Salt Lake Effect Snowfall: Some Notes and An Example. David M. Carpenter, October 1985
  1. Annual Data & Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1984. E.B. Gunther and R.L. Cross, April 1985
  1. The Use and Interpretation of Isentropic Analyses. Jeffrey L. Anderson, October 1984
  1. 500 Millibar Sign Frequency Teleconnection Charts - Fall. Lawrence B. Dunn, May 1984
  1. Annual Data and Verification Tabulation eastern North Pacific Tropical Storms and Hurricanes 1983. E.B. Gunther, March 1984
  1. 500 Millibar Sign Frequency Teleconnection Charts - Summer. Lawrence B. Dunn, March 1984
  1. Collection and Use of Lightning Strike Data in the Western U.S. During Summer 1983. Glenn Rasch and Mark Mathewson, February 1984
  1. 500 Millibar Sign Frequency Teleconnection Charts - Spring. Lawrence B. Dunn, January 1984
  1. 500 Millibar Sign Frequency Teleconnection Charts - Winter. Lawrence B. Dunn, December 1983
  1. Quantitative and Spacial Distribution of Winter Precipitation along Utah's Wasatch Front. Lawrence B. Dunn, August 1983
  1. Standard Hydrologic Exchange Format (SHEF) Version I. Phillip A. Pasteris, Vernon C. Bissel, David G. Bennett, August 1983
  1. Stratified Maximum Temperature Relationships Between Sixteen Zone Stations in Arizona and Respective Key Stations. Ira S. Brenner, June 1983
  1. Annual Data and Verification Tabulation, Eastern North Pacific Tropical Storms and Hurricanes 1982. E.B. Gunther, June 1983
  1. Climate of Phoenix, Arizona. Robert J. Schmidli and Austin Jamison, April 1969 (Revised July 1996)
  1. Approximations to the Peak Surface Wind Gusts from Desert Thunderstorms. Darryl Randerson, June 1982
  1. Annual Data and Verification Tabulation - Eastern and Central North Pacific Tropical Storms and Hurricanes 1981. Staff, EPHC, June 1982
  1. ARAP Test Results. Mark A. Mathewson, December 1981
  1. Central San Joaquin Valley Type Maps. Thomas R. Crossan, December 1981
  1. Forecasting Heavy Snow at Wenatchee, Washington. James W. Holcomb, December 1981
  1. Verification of 72-Hour 500-MB Map-Type Predictions. R.F. Quiring, November 1981
  1. An Enhanced Plotter for Surface Airways Observations. Andrew J. Spry and Jeffrey L. Anderson, October 1981
  1. A Statistical-Dynamical Model for Prediction of Tropical Cyclone Motion in the Eastern North Pacific Ocean. Preston W. Leftwich, Jr., October 1981
  1. Forecasting the Onset of Coastal Gales Off Washington-Oregon. John R. Zimmerman and William D. Burton, August 1981
  1. ARAP User's Guide. Mark Mathewson, July 1981, Revised September 1981
  1. Preliminary Estimates of Wind Power Potential at the Nevada Test Site. Howard G. Booth, June 1981
  1. Annual Data and Verification Tabulation, Eastern North Pacific Tropical Storms and Hurricanes 1980. Emil B. Gunther and Staff, May 1981
  1. An Objective Aid for Forecasting Afternoon Relative Humidity Along the Washington Cascade East Slopes. Robert S. Robinson, April 1981
  1. A Comparison of Two Methods for Forecasting Thunderstorms at Luke Air Force Base, Arizona. LTC Keith R. Cooley, April 1981
  1. A Systems Approach to Real-Time Runoff Analysis with a Deterministic Rainfall-Runoff Model. Robert J.C. Burnash and R. Larry Ferral, April 1981
  1. Solar Radiation as a Sole Source of Energy for Photovoltaics in Las Vegas, Nevada, for July and December. Darryl Randerson, April 1981
  1. Eastern North Pacific Tropical Cyclone Occurrences During Intraseasonal Periods. Preston W. Leftwich and Gail M. Brown, February 1981
  1. Tropical Cyclone Effects on California. Arnold Court, October 1980
  1. Hydrology Practicum. Thomas Dietrich, September 1980
  1. An Operational Evaluation of the Scofield/Oliver Technique for Estimating Precipitation Rates from Satellite Imagery. Richard Ochoa, August 1980
  1. The Effects of Terrain Distribution on Summer Thunderstorm Activity at Reno, Nevada. Christopher Dean Hill, July 1980
  1. A Raininess Index for the Arizona Monsoon. John H. Ten Harkel, July 1980
  1. Regression Equation for the Peak Wind Gust 6 to 12 Hours in Advance at Great Falls During Strong Downslope Wind Storms. Michael J. Oard, July 1980
  1. An Automatic Lightning Detection System in Northern California. James E. Rea and Chris E. Fontana, June 1980
  1. Climate of Salt Lake City, Utah. William J. Alder, Sean T. Buchanan, William Cope (Retired), James A. Cisco, Craig C. Schmidt, Alexander R. Smith (Retired), Wilbur E. Figgins (Retired), February 1998 - Seventh Revision
  1. NMC Model Performance in the Northeast Pacific. James E. Overland, PMEL-ERL, April 1980
  1. Annual Data and Verification Tabulation - Eastern and Central North Pacific Tropical Storms and Hurricanes 1979. Emil B. Gunther and Staff, EPHC, April 1980
  1. Misinterpretations of Precipitation Probability Forecasts. Allan H. Murphy, Sarah Lichtenstein, Baruch Fischhoff, and Robert L. Winkler, February 1980
  1. A Real-Time Radar Interface for AFOS. Mark Mathewson, January 1980
  1. Occurrence and Distribution of Flash Floods in the Western Region. Thomas L. Dietrich, December 1979
  1. The BART Experiment. Morris S. Webb, October 1979
  1.  On the Use of Solar Radiation and Temperature Models to Estimate the Snap Bean Maturity Date in the Willamette Valley. Earl M. Bates, August 1979
  1. Arizona Cool Season Climatological Surface Wind and Pressure Gradient Study. Ira S. Brenner, May 1979
  1. The Depth of the Marine Layer at San Diego as Related to Subsequent Cool Season Precipitation Episodes in Arizona. Ira S. Brenner, May 1979
  1. The Usefulness of Data from Mountaintop Fire Lookout Stations in Determining Atmospheric Stability. Jonathan W. Corey, April 1979
  1. Comparison of LFM and MFM Precipitation Guidance for Nevada During Doreen. Christopher Hill, April 1979
  1. Influence of Cloudiness on Summertime Temperatures in the Eastern Washington Fire Weather District. James Holcomb, April 1979
  1. Aids for Forecasting Minimum Temperature in the Wenatchee Frost District. Robert S. Robinson, April 1979
  1. A Simple Analysis/Diagnosis System for Real Time Evaluation of Vertical Motion. Scott Heflick and James R. Fors, February 1979
  1. LFM 24-Hour Prediction of Eastern Pacific Cyclones Refined by Satellite Images. John R. Zimmerman and Charles P. Ruscha, Jr., January 1979
  1. Basic Hydrologic Principles. Thomas L. Dietrich, January 1979
  1. Application of a Spectrum Analyzer in Forecasting Ocean Swell in Southern California Coastal Waters. Lawrence P. Kierulff, January 1979
  1. Solar Radiation. John A. Jannuzzi, November 1978
  1. Spectral Techniques in Ocean Wave Forecasting. John A. Jannuzzi, October 1978
  1. Estimates of the Effects of Terrain Blocking on the Los Angeles WSR-74C Weather Radar. R.G. Pappas, R.Y. Lee, B.W. Finke, October 1978
  1. Automated Fire-Weather Forecasts. Mark A. Mollner and David E. Olsen, September 1978
  1. Flash-Flood Procedure. Ralph C. Hatch and Gerald Williams, May 1978
  1. Fire whirls. David W. Goens, May 1978
  1. Hand Calculator Program to Compute Parcel Thermal Dynamics. Dan Gudgel, April 1978
  1. Development of a Probability Equation for Winter-Type Precipitation Patterns in Great Falls, Montana. Kenneth B. Mielke, February 1978
  1. Climate of San Francisco. E. Jan Null, February 1978
  1. Statistical Guidance on the Prediction of Eastern North Pacific Tropical Cyclone Motion - Part II. Preston W. Leftwich and Charles J. Neumann, August 1977
  1. Statistical Guidance for Prediction of Eastern North Pacific Tropical Cyclone Motion - Part I. Charles J. Neumann and Preston W. Leftwich, August 1977
  1. Study of a Heavy Precipitation Occurrence in Redding, California. Christopher E. Fontana, June 1977
  1. A Method for Transforming Temperature Distribution to Normality. Morris S. Webb, Jr., June 1977
  1. Climatological Prediction of Cumulonimbus Clouds in the Vicinity of the Yucca Flat Weather Station. R.F. Quiring, June 1977
  1. Some Meteorological Aspects of Air Pollution in Utah With Emphasis on the Salt Lake Valley. Dean N. Jackman and William T. Chapman
  1. Relative Frequency of Occurrence of Warm Season Echo Activity as a Function of Stability Indices Computed from the Yucca Flat, Nevada, Rawinsonde. Darryl Randerson, June 1977
  1. Moisture Distribution Modification by Upward Vertical Motion. Ira S. Brenner, April 1977
  1. The Relative Frequency of Cumulonimbus Clouds at the Nevada Test Site as a Function of K-Value. R.F. Quiring, April 1977
  1. A Study of Wind Gusts on Lake Mead. Bradley Colman, April 1977
  1. Program to Calculate Winds Aloft Using A Hewlett-Packard 25 Hand Calculator. Brian W. Finke, February 1977
  1. Tropical Cyclone Kathleen. James R. Fors, February 1977
  1. Winter Season Minimum Temperature Formula for Bakersfield, California, Using Multiple Regression. Michael J. Oard, February 1977
  1. The MAN/MOS Program. Alexander E. MacDonald, February 1977
  1. Operational Forecasting Using Automated Guidance. Leonard W. Snellman, February 1977
  1. Cool Inflow as a Weakening Influence on Eastern Pacific Tropical Cyclones. William J. Denney, November 1976
  1. Forecasting North Winds in the Upper Sacramento Valley and Adjoining Forests. Christopher E. Fontana, September 1976
  1. Other Kinds of Wind Shear. Christopher D. Hill, August 1976
  1. Map Types as Aids in Using MOS PoPs in Western United States. Ira S. Brenner, August 1976
  1. Use of MOS Forecast Parameters in Temperature Forecasting. John C. Plankinton, Jr., March 1976
  1. Forecasting the Mono Wind. Charles P. Ruscha, Jr., February 1976
  1. Objective Aids for Forecasting Minimum Temperatures at Reno, Nevada, During the Summer Months. Christopher D. Hill, January 1976
  1. Application of the National Weather Service Flash-Flood Program in the Western Region. Gerald Williams, January 1976
  1. A Set of Rules for Forecasting Temperatures in Napa and Sonoma Counties. Wesley L. Tuft, October 1975
  1. Digitized Eastern Pacific Tropical Cyclone Tracks. Robert A. Baum and Glenn E. Rasch, September 1975
  1. A Study of Flash Flood Occurrences at a Site Versus Over a Forecast Zone. Gerald Williams, August 1975
  1. A Study of Flash Flood Susceptibility-A Basin in Southern Arizona. Gerald Williams, August 1975
  1. Study on a Significant Precipitation Episode in Western United States. Ira S. Brenner, April 1976
  1. Eastern Pacific Cut-Off Low of April 21-28, 1974. William J. Alder and George R. Miller, January 1976
  1. Map type Precipitation Probabilities for the Western Region. Glenn E. Rasch and Alexander E. MacDonald, February 1975
  1. Climate of Flagstaff, Arizona. Mike Staudenmaier Jr., Paul W. Sorenson, and Reginald W. Preston, Revised August 2002 - 3rd Revision
  1. Conditional Probability of Visibility Less than One-Half Mile in Radiation Fog at Fresno, California. John D. Thomas, August 1974
  1. An Operational Evaluation of 500-mb Type Regression Equations. Alexander E. MacDonald, June 1974
  1. Smoke Management in the Willamette Valley. Earl M. Bates, May 1974
  1. Arizona "Eddy" Tornadoes. Robert S. Ingram, October 1973
  1.  A Thunderstorm "Warm Wake" at Midland, Texas. Richard A. Wood, September 1973
  1. Objective Forecast Precipitation Over the Western Region of the United States. Julia N. Paegle and Larry P. Kierulff, September 1973
  1. A Surge of Maritime Tropical Air - Gulf of California to the Southwestern United States. Ira S. Brenner, July 1973
  1. A Refinement of the Use of K-Values in Forecasting Thunderstorms in Washington and Oregon. Robert Y.G. Lee, June 1973
  1. Conditional Probabilities for Sequences of Wet Days at Phoenix, Arizona. Paul C. Kangieser, June 1973
  1.  Range of Radar Detection Associated with Precipitation Echoes of Given Heights by the WSR-57 at Missoula, Montana. Raymond Granger, April 1973
  1. Southwestern United States Summer Monsoon Source - Gulf of Mexico or Pacific Ocean?. John E. Hales, Jr., March 1973
  1. A Comparison of Manual and Semiautomatic Methods of Digitizing Analog Wind Records. Glenn E. Rasch, March 1973
  1. Flash Flood Forecasting and Warning Program in the Western Region. Philip Williams, Jr., Chester L. Glenn, and Roland L. Raetz, December 1972
  1. An Aid for Forecasting Summer Maximum Temperatures at Seattle, Washington. Edgar G. Johnson, November 1972
  1. Estimation of Number of Days Above or Below Selected Temperatures. Clarence M. Sakamoto, October 1972
  1. Climate of Stockton, California. Robert C. Nelson, July 1972 (Revised 1975)
  1. Forecasting Precipitation at Bakersfield, California, Using Pressure Gradient Vectors. Earl T. Riddiough, July 1972
  1. A Study of Radar Echo Distribution in Arizona During July and August. John E. Hales, Jr., July 1972
  1. Monthly Climatological Charts of the Behavior of Fog and Low Stratus at Los Angeles International Airport. Donald M. Gales, July 1972
  1. A Study of the Low Level Jet Stream of the San Joaquin Valley. Ronald A. Willis and Philip Williams, Jr., May 1972
  1. Thunderstorms and Hail Days Probabilities in Nevada. Clarence M. Sakamoto, April 1972
  1. A Synoptic Climatology for Snowstorms in Northwestern Nevada. Bert Nelson, Paul Fransioli, and Clarence Sakamoto, February 1972
  1. A Paradox Principle in the Prediction of Precipitation Type. Thomas J. Weitz, February 1972
  1. Western Region Synoptic Analysis-Problems and Methods. Philip Williams, Jr., February 1972
  1. Predicting Inversion Depths and Temperature Influences in the Helena Valley. David E. Olsen, October 1971
  1. National Weather Service Support to Soaring Activities. Ellis Burton, August 1971
  1. A Survey of Marine Weather Requirements. Herbert P. Benner, July 1971
  1.  Precipitation Detection Probabilities by Los Angeles ARTC Radars. Dennis E. Ronne, July 1971
  1. A Preliminary Report on Correlation of ARTCC Radar Echoes and Precipitation. Wilbur K. Hall, June 1971
  1. Climate of Sacramento, California. Laura Masters-Bevan. NWSO Sacramento, November 1998 (6th Revision)
  1. Wind and Weather Regimes at Great Falls, Montana. Warren B. Price, March 1971
  1. 700-mb Warm Air Advection as a Forecasting Tool for Montana and Northern Idaho. Norris E. Woerner, February 1971
  1. Forecasting the Catalina Eddy. Arthur L. Eichelberger, February 1971
  1. Relationship of Wind Velocity and Stability to SO2 Concentrations at Salt Lake City, UT. Werner J. Heck, January 1971
  1. An Aid for Forecasting the Minimum Temperature at Medford, Oregon. Arthur W. Fritz, October 1970
  1. Application of PE Model Forecast Parameters to Local-Area Forecasting. Leonard W. Snellman, October 1970
  1. Air Pollution by Jet Aircraft at Seattle-Tacoma Airport. Wallace R. Donaldson, October 1970
  1. Preliminary Report on Agricultural Field Burning vs. Atmospheric Visibility in the Willamette Valley of Oregon. Earl M. Bates and David O. Chilcote, September 1970
  1. Areal Coverage of Precipitation in Northwestern Utah. Philip Williams, Jr., and Werner J. Heck, September 1970
  1. Application of the SSARR Model to a Basin without Discharge Record. Vail Schermerhorn and Donal W. Kuehl, August 1970
  1. A Refinement of the Vorticity Field to Delineate Areas of Significant Precipitation. Barry B. Aronovitch, August 1970
  1. Experimental Air Quality Forecasts in the Sacramento Valley. Norman S. Benes, August 1970
  1. Sacramento Weather Radar Climatology. R.G. Pappas and C. M. Veliquette, July 1970
  1. Western Region Sea State and Surf Forecaster's Manual. Gordon C. Shields and Gerald B. Burdwell, July 1970
  1. Statistical Report on Aeroallergens (Pollens and Molds) Fort Huachuca, Arizona, 1969. Wayne S. Johnson, April 1970
  1. Predicting Precipitation Type. Robert J.C. Burnash and Floyd E. Hug, March 1970
  1. Tsunami. Richard P. Augulis, February 1970
  1. Statistical Analysis as a Flood Routing Tool. Robert J.C. Burnash, December 1969
  1. Applications of the Net Radiometer to Short-Range Fog and Stratus Forecasting at Eugene, Oregon. L. Yee and E. Bates, December 1969
  1. Precipitation Probabilities in the Western Region Associated with Fall 500-mb Map Types. Richard P. Augulis, January 1970
  1. Precipitation Probabilities in the Western Region Associated with Summer 500-mb Map Types. Richard P. Augulis, January 1970
  1. Precipitation Probabilities in the Western Region Associated with Spring 500-mb Map Types. Richard P. Augulis, January 1970
  1. Precipitation Probabilities in the Western Region Associated with Winter 500-mb Map Types. Richard P. Augulis, December 1969
  1. Estimated Return Periods for Short-Duration Precipitation in Arizona. Paul C. Kangieser, October 1969
  1. Forecasting Maximum Temperatures at Helena, Montana. David E. Olsen, October 1969
  1. Analysis of the Southern California Santa Ana of January 15-17, 1966. Barry B. Aronovitch, August 1969
  1. High Resolution Radiosonde Observations. W.S. Johnson, August 1969
  1. The Man-Machine Mix in Applied Weather Forecasting in the 1970s. L.W. Snellman, August 1969
  1. Upper-Air Lows Over Northwestern United States. A.L. Jacobson, April 1969
  1.  Climate of Phoenix, Arizona. R. J. Schmidli, P. C. Kangieser, and R. S. Ingram, April 1969
  1. Disposal of Logging Residues Without Damage to Air Quality. Owen P. Cramer, March 1969
  1. Temperature Trends in Sacramento--Another Heat Island. Anthony D. Lentini, February 1969
  1. Joint ESSA/FAA ARTC Radar Weather Surveillance Program. H.P. Benner and D.B. Smith, December 1968
  1. The WS-57 Radar Program at Missoula, Montana. R. Granger, October 1968
  1.  Objective Forecasting. PhiIip WiIIiams, Jr., August 1968
  1. Probability Forecasting--A Problem Analysis with Reference to the Portland Fire Weather District. Harold S. Ayer, July 1968
  1. Precipitation Detection Probabilities by Salt Lake ARTC Radars. Robert K. Belesky, July 1968
  1. Numerical Weather Prediction and Synoptic Meteorology. CPT Thomas D. Murphy, USAF, May 1968
  1. Small-Scale Analysis and Prediction. Philip Williams, Jr., May 1968
  1. Weather Extremes. R. J. Schmidli, April 1968 (Revised March 1986 & October 1991)
  1. Objective Minimum Temperature Forecasting for Helena, Montana. D. E. Olsen, February 1968
  1. A Study of Winds in the Lake Mead Recreation Area. R. P. Augulis, January 1968
  1. Verification of Operation Probability of Precipitation Forecasts, April 1966-March 1967. W. W. Dickey, October 1967
  1.  Historical and Climatological Study of Grinnell Glacier, Montana. Richard A. Dightman. July 1967
  1. "K" Chart Application to Thunderstorm Forecasts Over the Western United States. Richard E. Hambidge, May 1967
  1. Derivation of Radar Horizons in Mountainous Terrain. Roger G. Pappas, April 1967
  1. An Objective Aid for Forecasting the End of East Winds in the Columbia Gorge, July through October. D. John Coparanis, April 1967
  1.  Transmitting Radar Echo Locations to Local Fire Control Agencies for Lightning Fire Detection. Robert R. Peterson, March 1967
  1.  A Grid Method for Estimating Precipitation Amounts by Using the WSR-57 Radar. R. Granger, December 1966
  1. Limitations of Selected Meteorological Data. Environmental Science Services Administration, December 1966
  1. A Digitalized Summary of Radar Echoes within 100 Miles of Sacramento, California. J. A. Youngberg and L. B. Overaas, December 1966
  1.  Some Notes on Acclimatization in Man. Edited by Leonard W. Snellman, Nov. 1966
  1.  The Use of the Mean as an Estimate of "Normal" Precipitation in an Arid Region. Paul C. Kangieser, November 1966
  1.  Applications of Net Radiometer Measurements to Short-Range Fog and Stratus Forecasting at Los Angeles. Frederick Thomas. September 1966
  1. A Collection of Technical Attachments on the 1966 NMC Primitive-Equation Model. Leonard W. Snellman, August 1966
  1.  A Comparison of Fog Incidence at Missoula, Montana, with Surrounding Locations. Richard A. Dightman. August 1966
  1. Some Electrical Processes in the Atmosphere. J. Latham, June 1966
  1.  Sonic Boom. Loren Crow (6th Weather Wing, USAF, Pamphlet). June 1966
  1.  A Collection of Papers Related to the 1966 NMC Primitive-Equation Model. Various Authors, June 1966
  1.  Interpreting the RAREP. Herbert P. Benner, May 1966 (Revised January 1967)
  1. Final Report on Precipitation Probability Test Programs. Edward D. Diemer, May 1966
  1. Improvement of Forecast Wording and Format. C. L. Glenn, May 1966
  1. Station Descriptions of Local Effects on Synoptic Weather Patterns. Philip Williams, Jr., April 1966 (Revised November 1967, October 1969)
  1.  Use of Meteorological Satellite Data. Various Authors, March 1966
  1. Western Region Pre- and Post-FP-3 Program, December 1, 1965, to February 20, 1966. Edward D. Diemer, March 1966
  1. Climatological Precipitation Probabilities. Compiled by Lucianne Miller, December 1965
  1. Some Notes on Probability Forecasting. Edward D. Diemer, September 1965

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