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.

For a list of Technical Memoranda not available online, click here.
Point of Contact is: the National Weather Service Western Region Headquarters.

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291. The History of Weather Observation - Boise Idaho. Joshua D. Smith, April 2017

290. Blowing Dust and Dust Storms: One of Arizona's Most Underrated Weather Hazards. Glenn Lader, Aishwarya Raman, Jeffrey Davis, and Ken Waters, July 2016

289. A Century of Weather in Death Valley, CA: 1911-2011. Chris Stachelski, January 2013

288. The Climate of Winnemucca, Nevada. Ray Martin, June 2012

287. The Climate of Ely, Nevada. Ray Martin, June 2012

286. The Climate of Elko, Nevada. Ray Martin, June 2012

285. 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

284. The Presidents' Day 2005 Tornadoes in the Southern Sacramento Valley of Northern California. James H. Matthews, September 2009

283. 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

282. Hazardous Weather Climatology for Arizona. Craig Shoemaker and Jeffrey T. Davis, February 2008

281. The Climate of Bakersfield, California. Chris Stachelski and Gary Sanger, February 2008

280. The Climate of Fresno, California. Chris Stachelski and Gary Sanger, March 2008

279. 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

278. 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

277. 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

276. Climate of Reno, Nevada. Brian O'Hara, October 2006

275. Climate of San Diego, California. Noel M. Isla, Jennifer L. Lee, Third Edition, March 2006

274. Climate of Prescott, Arizona. Bob Fogarty, Mike Staudenmaier, Jr., 1st Revision by Mike Staudenmaier, Jr. January 2009

273. Climate of Flagstaff, Arizona. 7th Revision. Mike Staudenmaier, Jr., Reginald Preston(R), Paul Sorenson(R), Justin Johndrow, January 2014

272. Climate of Sacramento, California. Revised by: Laura A. Bevan and George Cline, June 2005

271. Climate of Las Vegas, Nevada. Revised by: Andrew S. Gorelow , January 2005 Previous Edition Paul H. Skrbac, December 1999

270. 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

268. Prediction of Heavy Snow Events in the Snake River Plain Using Pattern Recognition and Regression Techniques. Thomas Andretta and William Wojcik. October 2003

267.  Sulphur Mountain Doppler Radar: A Performance Study. Los Angeles/Oxnard WFO. August 2001

266.  Climate of Sacramento, California. Laura Masters-Bevan. December 2000 (7th Revision)

265.  Climate of Sheridan, Wyoming. Jeffrey J. Zeltwanger, Sally Springer, Mark H. Strobin. March 2001

264.  Climate of Billings, Montana. Jeffrey J. Zeltwanger and Mark H. Strobin. November 2000

263.  Analysis of Radiosonde Data for Spokane, Washington. Rocco D. Pelatti. November 2000

262. Climate of Miles City, Montana. David A. Spector and Mark H. Strobin. April 2000

261. Climate of Los Angeles, California. David Bruno, Gary Ryan, with assistance from Curt Kaplan and Jonathan Slemmer. January 2000

260. Climate of Las Vegas, Nevada. Paul H. Skrbac. December 1999

259. Climate of San Jose, California. Miguel Miller. April 1999

258. 1985-1998 North Pacific Tropical Cyclones Impacting the Southwestern United States and Northern Mexico: An Updated Climatology. Armando L. Garza. January 1999

257. Climate of Seattle, Washington. Dana Felton. November 1998

256. Climate of San Diego, California. Thomas E. Evans, III and Donald A. Halvorson. October 1998

255. Creation and Maintenance of a Comprehensive Climate Data Base. Eugene Petrescu. August 1998

254. Conditional Symmetric Instability Methods of Operational Diagnosis and Case Study of 23-24 February 1994 Eastern Washington/Oregon Snowstorm. Gregory A. DeVoir. May 1998

253. Inferenced Oceanic Kelvin/Rossby Wave Influence on North American West Coast Precipitation. Martin E. Lee and Dudley Chelton. April 1998

252. Climate of Eureka, California. Alan H. Puffer. February 1998

251. A Composite Study Examining Five Heavy Snowfall Patterns for South-Central Montana. Jonathan D. Van Ausdall and Thomas W. Humphrey. February 1998

250. Northwest Oregon Daily Extremes and Normals. Clinton C. D. Rockey, October 1997

249. Climate of Tucson, Arizona. John R. Glueck, October 1997

248. Climate of Eugene, Oregon. Clinton C. D. Rockey, April 1997

247. The Northeast Nevada Climate Book. Edwin C. Clark, March 1997. (First Revision - January 1998 - Andrew S. Gorelow and Edwin C. Clark

246. A Western Region Guide to the Eta-29 Model. Mike Staudenmaier, Jr., March 1997

245. Climatology of Cape for Eastern Montana and Northern Wyoming. Heath Hockenberry and Keith Meier, January 1997

244. WSR-88D VAD Wind Profile Data Influenced by Bird Migration over the Southwest United States. Jesus A. Haro, January 1997

243. Climate of Great Falls. Montana. Matt Jackson and D. C. Williamson, December 1996

242. Climate of Pocatello, Idaho. Joe Heim, October 1996

241. 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

240. Downslope Winds of Santa Barbara, CA. Gary Ryan, July 1996

239. Climate of Portland, Oregon. Clinton C. D. Rockey, May 1996

238. Significant Weather Patterns Affecting West Central Montana. Joe Lester, May 1996

237. The 6 July 1995 Severe Weather Events in the Northwestern United States: Recent Examples of SSWEs. Eric C. Evenson, April 1996

236. Climate of Astoria, Oregon. Mark A. McInerney, January 1996

235. Climate of Las Vegas, Nevada. Paul H. Skrbac and Scott Cordero, December 1995

234. Some Climatological and Synoptic Aspects of Severe Weather Development in the Northwestern United States. Eric C. Evenson and Robert H. Johns, October 1995

233. Storm Relative Isentropic Motion Associated with Cold Fronts in Northern Utah. Kevin B. Baker, Kathleen A. Hadley, and Lawrence B. Dunn, July 1995

232. Fog Climatology at Spokane, Washington. Paul Frisbie, July 1995

231. Washington State Tornadoes. Treste Huse, July 1995

230. Santa Ana Winds and the Fire Outbreak of Fall 1993. Ivory Small, June 1995

229. The 10 February 1994 Oroville Tornado--A Case Study. Mike Staudenmaier, Jr., April 1995

228. Forecasting Minimum Temperatures in the Santa Maria Agricultural District. Wilfred Pi and Peter Felsch, December 1994

227. Climate of Kalispell, Montana. Chris Maier, December 1994

226. Climate of Yakima, Washington. Greg DeVoir, David Hogan, and Jay Neher, December 1994

225. Climate of Santa Barbara, California. Gary Ryan, December 1994

224. Climate of Wenatchee, Washington. Michael W. McFarland, Roger G. Buckman, and Gregory E. Matzen, March 1994

223. Climate of San Luis Obispo, California. Gary Ryan, February 1994

222. Convective and Rotational Parameters Associated with Three Tornado Episodes in Northern and Central California. John P. Monteverdi and John Quadros, September 1993

221. 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

220. Climate of Pendleton, Oregon. Claudia Bell, August 1993

219. 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

218. NWS Winter Weather Workshop in Portland, Oregon. Various Authors, December 1992

217. Forecasting Heavy Snow Events in Missoula, Montana. Mike Richmond, May 1992

216. Creating MOS Equations for RAWS Stations Using Digital Model Data. Dennis D. Gettman, December 1991

215. WeatherTools. Tom Egger, October 1991

214. Emergency Operational Meteorological Considerations During an Accidental Release of Hazardous Chemicals. Peter Mueller and Jerry Galt, August 1991

213. Idaho Zone Preformat, Temperature Guidance, and Verification. Mark A. Mollner, July 1991

212. Preliminary Analysis of the San Francisco Rainfall Record: 1849-1990. Jan Null, May 1991

211. A Northern Utah Soaker. Mark E. Struthwolf, February 1991

210. Hydrotools. Tom Egger. January 1991

209. Stratus Surge Prediction Along the Central California Coast. Peter Felsch and Woodrow Whitlatch, December 1990

208. Meteorological Factors Contributing to the Canyon Creek Fire Blowup, September 6 and 7, 1988. David W. Goens, June 1990

207. The Las Vegas McCarran International Airport Microburst of August 8, 1989. Carven A. Scott, June 1990

206. A Collection of Papers Related to Heavy Precipitation Forecasting. Western Region Headquarters, Scientific Services Division, August 1989

205. Forecast Guidelines For Fire Weather and Forecasters -- How Nighttime Humidity Affects Wildland Fuels. David W. Goens, February 1989

204. Preliminary Analysis of Cloud-To-Ground Lightning in the Vicinity of the Nevada Test Site. Carven Scott, November 1988

203. An Investigation of the 24 September 1986 "Cold Sector" Tornado Outbreak in Northern California. John P. Monteverdi and Scott A. Braun, October 1988

202. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1987. Roger L. Cross and Kenneth B. Mielke, September 1988

201. An Inexpensive Solution for the Mass Distribution of Satellite Images. Glen W. Sampson and George Clark, September 1987

200. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1986. Roger L. Cross and Kenneth B. Mielke, September 1987

199. Heavy Rains and Flooding in Montana: A Case for Slantwise Convection. Glenn R. Lussky, April 1987

198. Preliminary Lightning Climatology Studies for Idaho. Christopher D. Hill, Carl J. Gorski, and Michael C. Conger, April 1987

197. The Effects of Eastern North Pacific Tropical Cyclones on the Southwestern United States. Walter Smith, August 1986

196. A Mesoscale Convective Complex Type Storm over the Desert Southwest. Darryl Randerson, April 1986

195. Radid Interpretation Guidelines. Roger G. Pappas, March 1986

194. Annual Data and Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1985. E.B. Gunther and R.L. Cross, March 1986

193. The MCC - An Overview and Case Study on Its Impact in the Western United States. Glenn R. Lussky, April 1987

192. NWR Voice Synthesis Project: Phase I. Glen W. Sampson, January 1986

191. Large Scale Patterns Associated with Major Freeze Episodes in the Agricultural Southwest. Ronald S. Hamilton and Glenn R. Lussky, December 1985

190. Great Salt Lake Effect Snowfall: Some Notes and An Example. David M. Carpenter, October 1985

189. Annual Data & Verification Tabulation Eastern North Pacific Tropical Storms and Hurricanes 1984. E.B. Gunther and R.L. Cross, April 1985

188. The Use and Interpretation of Isentropic Analyses. Jeffrey L. Anderson, October 1984

187. 500 Millibar Sign Frequency Teleconnection Charts - Fall. Lawrence B. Dunn, May 1984

186. Annual Data and Verification Tabulation eastern North Pacific Tropical Storms and Hurricanes 1983. E.B. Gunther, March 1984

185. 500 Millibar Sign Frequency Teleconnection Charts - Summer. Lawrence B. Dunn, March 1984

184. Collection and Use of Lightning Strike Data in the Western U.S. During Summer 1983. Glenn Rasch and Mark Mathewson, February 1984

183. 500 Millibar Sign Frequency Teleconnection Charts - Spring. Lawrence B. Dunn, January 1984

182. 500 Millibar Sign Frequency Teleconnection Charts - Winter. Lawrence B. Dunn, December 1983

181. Quantitative and Spacial Distribution of Winter Precipitation along Utah's Wasatch Front. Lawrence B. Dunn, August 1983

180. Standard Hydrologic Exchange Format (SHEF) Version I. Phillip A. Pasteris, Vernon C. Bissel, David G. Bennett, August 1983

179. Stratified Maximum Temperature Relationships Between Sixteen Zone Stations in Arizona and Respective Key Stations. Ira S. Brenner, June 1983

178. Annual Data and Verification Tabulation, Eastern North Pacific Tropical Storms and Hurricanes 1982. E.B. Gunther, June 1983

177. Climate of Phoenix, Arizona. Robert J. Schmidli and Austin Jamison, April 1969 (Revised July 1996)

176. Approximations to the Peak Surface Wind Gusts from Desert Thunderstorms. Darryl Randerson, June 1982

175. Annual Data and Verification Tabulation - Eastern and Central North Pacific Tropical Storms and Hurricanes 1981. Staff, EPHC, June 1982

174. ARAP Test Results. Mark A. Mathewson, December 1981

173. Central San Joaquin Valley Type Maps. Thomas R. Crossan, December 1981

172. Forecasting Heavy Snow at Wenatchee, Washington. James W. Holcomb, December 1981

171. Verification of 72-Hour 500-MB Map-Type Predictions. R.F. Quiring, November 1981

170. An Enhanced Plotter for Surface Airways Observations. Andrew J. Spry and Jeffrey L. Anderson, October 1981

169. A Statistical-Dynamical Model for Prediction of Tropical Cyclone Motion in the Eastern North Pacific Ocean. Preston W. Leftwich, Jr., October 1981

168. Forecasting the Onset of Coastal Gales Off Washington-Oregon. John R. Zimmerman and William D. Burton, August 1981

167. ARAP User's Guide. Mark Mathewson, July 1981, Revised September 1981

166. Preliminary Estimates of Wind Power Potential at the Nevada Test Site. Howard G. Booth, June 1981

165. Annual Data and Verification Tabulation, Eastern North Pacific Tropical Storms and Hurricanes 1980. Emil B. Gunther and Staff, May 1981

164. An Objective Aid for Forecasting Afternoon Relative Humidity Along the Washington Cascade East Slopes. Robert S. Robinson, April 1981

163. A Comparison of Two Methods for Forecasting Thunderstorms at Luke Air Force Base, Arizona. LTC Keith R. Cooley, April 1981

162. A Systems Approach to Real-Time Runoff Analysis with a Deterministic Rainfall-Runoff Model. Robert J.C. Burnash and R. Larry Ferral, April 1981

161. Solar Radiation as a Sole Source of Energy for Photovoltaics in Las Vegas, Nevada, for July and December. Darryl Randerson, April 1981

160. Eastern North Pacific Tropical Cyclone Occurrences During Intraseasonal Periods. Preston W. Leftwich and Gail M. Brown, February 1981

159. Tropical Cyclone Effects on California. Arnold Court, October 1980

158. Hydrology Practicum. Thomas Dietrich, September 1980

157. An Operational Evaluation of the Scofield/Oliver Technique for Estimating Precipitation Rates from Satellite Imagery. Richard Ochoa, August 1980

156. The Effects of Terrain Distribution on Summer Thunderstorm Activity at Reno, Nevada. Christopher Dean Hill, July 1980

155. A Raininess Index for the Arizona Monsoon. John H. Ten Harkel, July 1980

154. 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

153. An Automatic Lightning Detection System in Northern California. James E. Rea and Chris E. Fontana, June 1980

152. 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

151. NMC Model Performance in the Northeast Pacific. James E. Overland, PMEL-ERL, April 1980

150. Annual Data and Verification Tabulation - Eastern and Central North Pacific Tropical Storms and Hurricanes 1979. Emil B. Gunther and Staff, EPHC, April 1980

149. Misinterpretations of Precipitation Probability Forecasts. Allan H. Murphy, Sarah Lichtenstein, Baruch Fischhoff, and Robert L. Winkler, February 1980

148. A Real-Time Radar Interface for AFOS. Mark Mathewson, January 1980

147. Occurrence and Distribution of Flash Floods in the Western Region. Thomas L. Dietrich, December 1979

146. The BART Experiment. Morris S. Webb, October 1979

145.  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

144. Arizona Cool Season Climatological Surface Wind and Pressure Gradient Study. Ira S. Brenner, May 1979

143. The Depth of the Marine Layer at San Diego as Related to Subsequent Cool Season Precipitation Episodes in Arizona. Ira S. Brenner, May 1979

142. The Usefulness of Data from Mountaintop Fire Lookout Stations in Determining Atmospheric Stability. Jonathan W. Corey, April 1979

141. Comparison of LFM and MFM Precipitation Guidance for Nevada During Doreen. Christopher Hill, April 1979

140. Influence of Cloudiness on Summertime Temperatures in the Eastern Washington Fire Weather District. James Holcomb, April 1979

139. Aids for Forecasting Minimum Temperature in the Wenatchee Frost District. Robert S. Robinson, April 1979

138. A Simple Analysis/Diagnosis System for Real Time Evaluation of Vertical Motion. Scott Heflick and James R. Fors, February 1979

137. LFM 24-Hour Prediction of Eastern Pacific Cyclones Refined by Satellite Images. John R. Zimmerman and Charles P. Ruscha, Jr., January 1979

136. Basic Hydrologic Principles. Thomas L. Dietrich, January 1979

135. Application of a Spectrum Analyzer in Forecasting Ocean Swell in Southern California Coastal Waters. Lawrence P. Kierulff, January 1979

134. Solar Radiation. John A. Jannuzzi, November 1978

133. Spectral Techniques in Ocean Wave Forecasting. John A. Jannuzzi, October 1978

132. 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

131. Automated Fire-Weather Forecasts. Mark A. Mollner and David E. Olsen, September 1978

130. Flash-Flood Procedure. Ralph C. Hatch and Gerald Williams, May 1978

129. Fire whirls. David W. Goens, May 1978

128. Hand Calculator Program to Compute Parcel Thermal Dynamics. Dan Gudgel, April 1978

127. Development of a Probability Equation for Winter-Type Precipitation Patterns in Great Falls, Montana. Kenneth B. Mielke, February 1978

126. Climate of San Francisco. E. Jan Null, February 1978

125. Statistical Guidance on the Prediction of Eastern North Pacific Tropical Cyclone Motion - Part II. Preston W. Leftwich and Charles J. Neumann, August 1977

124. Statistical Guidance for Prediction of Eastern North Pacific Tropical Cyclone Motion - Part I. Charles J. Neumann and Preston W. Leftwich, August 1977

123. Study of a Heavy Precipitation Occurrence in Redding, California. Christopher E. Fontana, June 1977

122. A Method for Transforming Temperature Distribution to Normality. Morris S. Webb, Jr., June 1977

121. Climatological Prediction of Cumulonimbus Clouds in the Vicinity of the Yucca Flat Weather Station. R.F. Quiring, June 1977

120. Some Meteorological Aspects of Air Pollution in Utah With Emphasis on the Salt Lake Valley. Dean N. Jackman and William T. Chapman

119. 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

118. Moisture Distribution Modification by Upward Vertical Motion. Ira S. Brenner, April 1977

117. The Relative Frequency of Cumulonimbus Clouds at the Nevada Test Site as a Function of K-Value. R.F. Quiring, April 1977

116. A Study of Wind Gusts on Lake Mead. Bradley Colman, April 1977

115. Program to Calculate Winds Aloft Using A Hewlett-Packard 25 Hand Calculator. Brian W. Finke, February 1977

114. Tropical Cyclone Kathleen. James R. Fors, February 1977

113. Winter Season Minimum Temperature Formula for Bakersfield, California, Using Multiple Regression. Michael J. Oard, February 1977

112. The MAN/MOS Program. Alexander E. MacDonald, February 1977

111. Operational Forecasting Using Automated Guidance. Leonard W. Snellman, February 1977

110. Cool Inflow as a Weakening Influence on Eastern Pacific Tropical Cyclones. William J. Denney, November 1976

109. Forecasting North Winds in the Upper Sacramento Valley and Adjoining Forests. Christopher E. Fontana, September 1976

108. Other Kinds of Wind Shear. Christopher D. Hill, August 1976

107. Map Types as Aids in Using MOS PoPs in Western United States. Ira S. Brenner, August 1976

106. Use of MOS Forecast Parameters in Temperature Forecasting. John C. Plankinton, Jr., March 1976

105. Forecasting the Mono Wind. Charles P. Ruscha, Jr., February 1976

104. Objective Aids for Forecasting Minimum Temperatures at Reno, Nevada, During the Summer Months. Christopher D. Hill, January 1976

103. Application of the National Weather Service Flash-Flood Program in the Western Region. Gerald Williams, January 1976

102. A Set of Rules for Forecasting Temperatures in Napa and Sonoma Counties. Wesley L. Tuft, October 1975

101. Digitized Eastern Pacific Tropical Cyclone Tracks. Robert A. Baum and Glenn E. Rasch, September 1975

100. A Study of Flash Flood Occurrences at a Site Versus Over a Forecast Zone. Gerald Williams, August 1975

99. A Study of Flash Flood Susceptibility-A Basin in Southern Arizona. Gerald Williams, August 1975

98. Study on a Significant Precipitation Episode in Western United States. Ira S. Brenner, April 1976

97. Eastern Pacific Cut-Off Low of April 21-28, 1974. William J. Alder and George R. Miller, January 1976

96. Map type Precipitation Probabilities for the Western Region. Glenn E. Rasch and Alexander E. MacDonald, February 1975

95. Climate of Flagstaff, Arizona. Mike Staudenmaier Jr., Paul W. Sorenson, and Reginald W. Preston, Revised August 2002 - 3rd Revision

94. Conditional Probability of Visibility Less than One-Half Mile in Radiation Fog at Fresno, California. John D. Thomas, August 1974

93. An Operational Evaluation of 500-mb Type Regression Equations. Alexander E. MacDonald, June 1974

92. Smoke Management in the Willamette Valley. Earl M. Bates, May 1974

91. Arizona "Eddy" Tornadoes. Robert S. Ingram, October 1973

90.  A Thunderstorm "Warm Wake" at Midland, Texas. Richard A. Wood, September 1973

89. Objective Forecast Precipitation Over the Western Region of the United States. Julia N. Paegle and Larry P. Kierulff, September 1973

88. A Surge of Maritime Tropical Air - Gulf of California to the Southwestern United States. Ira S. Brenner, July 1973

87. A Refinement of the Use of K-Values in Forecasting Thunderstorms in Washington and Oregon. Robert Y.G. Lee, June 1973

86. Conditional Probabilities for Sequences of Wet Days at Phoenix, Arizona. Paul C. Kangieser, June 1973

85.  Range of Radar Detection Associated with Precipitation Echoes of Given Heights by the WSR-57 at Missoula, Montana. Raymond Granger, April 1973

84. Southwestern United States Summer Monsoon Source - Gulf of America or Pacific Ocean?. John E. Hales, Jr., March 1973

83. A Comparison of Manual and Semiautomatic Methods of Digitizing Analog Wind Records. Glenn E. Rasch, March 1973

82. Flash Flood Forecasting and Warning Program in the Western Region. Philip Williams, Jr., Chester L. Glenn, and Roland L. Raetz, December 1972

81. An Aid for Forecasting Summer Maximum Temperatures at Seattle, Washington. Edgar G. Johnson, November 1972

80. Estimation of Number of Days Above or Below Selected Temperatures. Clarence M. Sakamoto, October 1972

79. Climate of Stockton, California. Robert C. Nelson, July 1972 (Revised 1975)

78. Forecasting Precipitation at Bakersfield, California, Using Pressure Gradient Vectors. Earl T. Riddiough, July 1972

77. A Study of Radar Echo Distribution in Arizona During July and August. John E. Hales, Jr., July 1972

76. Monthly Climatological Charts of the Behavior of Fog and Low Stratus at Los Angeles International Airport. Donald M. Gales, July 1972

75. A Study of the Low Level Jet Stream of the San Joaquin Valley. Ronald A. Willis and Philip Williams, Jr., May 1972

74. Thunderstorms and Hail Days Probabilities in Nevada. Clarence M. Sakamoto, April 1972

73. A Synoptic Climatology for Snowstorms in Northwestern Nevada. Bert Nelson, Paul Fransioli, and Clarence Sakamoto, February 1972

72. A Paradox Principle in the Prediction of Precipitation Type. Thomas J. Weitz, February 1972

71. Western Region Synoptic Analysis-Problems and Methods. Philip Williams, Jr., February 1972

70. Predicting Inversion Depths and Temperature Influences in the Helena Valley. David E. Olsen, October 1971

69. National Weather Service Support to Soaring Activities. Ellis Burton, August 1971

68. A Survey of Marine Weather Requirements. Herbert P. Benner, July 1971

67.  Precipitation Detection Probabilities by Los Angeles ARTC Radars. Dennis E. Ronne, July 1971

66. A Preliminary Report on Correlation of ARTCC Radar Echoes and Precipitation. Wilbur K. Hall, June 1971

65. Climate of Sacramento, California. Laura Masters-Bevan. NWSO Sacramento, November 1998 (6th Revision)

64. Wind and Weather Regimes at Great Falls, Montana. Warren B. Price, March 1971

63. 700-mb Warm Air Advection as a Forecasting Tool for Montana and Northern Idaho. Norris E. Woerner, February 1971

62. Forecasting the Catalina Eddy. Arthur L. Eichelberger, February 1971

61. Relationship of Wind Velocity and Stability to SO2 Concentrations at Salt Lake City, UT. Werner J. Heck, January 1971

60. An Aid for Forecasting the Minimum Temperature at Medford, Oregon. Arthur W. Fritz, October 1970

59. Application of PE Model Forecast Parameters to Local-Area Forecasting. Leonard W. Snellman, October 1970

58. Air Pollution by Jet Aircraft at Seattle-Tacoma Airport. Wallace R. Donaldson, October 1970

57. Preliminary Report on Agricultural Field Burning vs. Atmospheric Visibility in the Willamette Valley of Oregon. Earl M. Bates and David O. Chilcote, September 1970

56. Areal Coverage of Precipitation in Northwestern Utah. Philip Williams, Jr., and Werner J. Heck, September 1970

55. Application of the SSARR Model to a Basin without Discharge Record. Vail Schermerhorn and Donal W. Kuehl, August 1970

54. A Refinement of the Vorticity Field to Delineate Areas of Significant Precipitation. Barry B. Aronovitch, August 1970

53. Experimental Air Quality Forecasts in the Sacramento Valley. Norman S. Benes, August 1970

52. Sacramento Weather Radar Climatology. R.G. Pappas and C. M. Veliquette, July 1970

51. Western Region Sea State and Surf Forecaster's Manual. Gordon C. Shields and Gerald B. Burdwell, July 1970

50. Statistical Report on Aeroallergens (Pollens and Molds) Fort Huachuca, Arizona, 1969. Wayne S. Johnson, April 1970

49. Predicting Precipitation Type. Robert J.C. Burnash and Floyd E. Hug, March 1970

48. Tsunami. Richard P. Augulis, February 1970

47. Statistical Analysis as a Flood Routing Tool. Robert J.C. Burnash, December 1969

46. 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

44. Estimated Return Periods for Short-Duration Precipitation in Arizona. Paul C. Kangieser, October 1969

43. Forecasting Maximum Temperatures at Helena, Montana. David E. Olsen, October 1969

42. Analysis of the Southern California Santa Ana of January 15-17, 1966. Barry B. Aronovitch, August 1969

41. High Resolution Radiosonde Observations. W.S. Johnson, August 1969

40. The Man-Machine Mix in Applied Weather Forecasting in the 1970s. L.W. Snellman, August 1969

39. Upper-Air Lows Over Northwestern United States. A.L. Jacobson, April 1969

38.  Climate of Phoenix, Arizona. R. J. Schmidli, P. C. Kangieser, and R. S. Ingram, April 1969

37. Disposal of Logging Residues Without Damage to Air Quality. Owen P. Cramer, March 1969

36. Temperature Trends in Sacramento--Another Heat Island. Anthony D. Lentini, February 1969

35. Joint ESSA/FAA ARTC Radar Weather Surveillance Program. H.P. Benner and D.B. Smith, December 1968

34. The WS-57 Radar Program at Missoula, Montana. R. Granger, October 1968

33.  Objective Forecasting. PhiIip WiIIiams, Jr., August 1968

32. Probability Forecasting--A Problem Analysis with Reference to the Portland Fire Weather District. Harold S. Ayer, July 1968

31. Precipitation Detection Probabilities by Salt Lake ARTC Radars. Robert K. Belesky, July 1968

30. Numerical Weather Prediction and Synoptic Meteorology. CPT Thomas D. Murphy, USAF, May 1968

29. Small-Scale Analysis and Prediction. Philip Williams, Jr., May 1968

28. Weather Extremes. R. J. Schmidli, April 1968 (Revised March 1986 & October 1991)

27. Objective Minimum Temperature Forecasting for Helena, Montana. D. E. Olsen, February 1968

26. A Study of Winds in the Lake Mead Recreation Area. R. P. Augulis, January 1968

25. Verification of Operation Probability of Precipitation Forecasts, April 1966-March 1967. W. W. Dickey, October 1967

24.  Historical and Climatological Study of Grinnell Glacier, Montana. Richard A. Dightman. July 1967

23. "K" Chart Application to Thunderstorm Forecasts Over the Western United States. Richard E. Hambidge, May 1967

22. Derivation of Radar Horizons in Mountainous Terrain. Roger G. Pappas, April 1967

21. An Objective Aid for Forecasting the End of East Winds in the Columbia Gorge, July through October. D. John Coparanis, April 1967

20.  Transmitting Radar Echo Locations to Local Fire Control Agencies for Lightning Fire Detection. Robert R. Peterson, March 1967

19.  A Grid Method for Estimating Precipitation Amounts by Using the WSR-57 Radar. R. Granger, December 1966

18. Limitations of Selected Meteorological Data. Environmental Science Services Administration, December 1966

17. A Digitalized Summary of Radar Echoes within 100 Miles of Sacramento, California. J. A. Youngberg and L. B. Overaas, December 1966

16.  Some Notes on Acclimatization in Man. Edited by Leonard W. Snellman, Nov. 1966

15.  The Use of the Mean as an Estimate of "Normal" Precipitation in an Arid Region. Paul C. Kangieser, November 1966

14.  Applications of Net Radiometer Measurements to Short-Range Fog and Stratus Forecasting at Los Angeles. Frederick Thomas. September 1966

13. A Collection of Technical Attachments on the 1966 NMC Primitive-Equation Model. Leonard W. Snellman, August 1966

12.  A Comparison of Fog Incidence at Missoula, Montana, with Surrounding Locations. Richard A. Dightman. August 1966

11. Some Electrical Processes in the Atmosphere. J. Latham, June 1966

10.  Sonic Boom. Loren Crow (6th Weather Wing, USAF, Pamphlet). June 1966

9.  A Collection of Papers Related to the 1966 NMC Primitive-Equation Model. Various Authors, June 1966

8.  Interpreting the RAREP. Herbert P. Benner, May 1966 (Revised January 1967)

7. Final Report on Precipitation Probability Test Programs. Edward D. Diemer, May 1966

6. Improvement of Forecast Wording and Format. C. L. Glenn, May 1966

5. Station Descriptions of Local Effects on Synoptic Weather Patterns. Philip Williams, Jr., April 1966 (Revised November 1967, October 1969)

4.  Use of Meteorological Satellite Data. Various Authors, March 1966

3. Western Region Pre- and Post-FP-3 Program, December 1, 1965, to February 20, 1966. Edward D. Diemer, March 1966

2. Climatological Precipitation Probabilities. Compiled by Lucianne Miller, December 1965

1. Some Notes on Probability Forecasting. Edward D. Diemer, September 1965