#------------------------------------------------- WARNING -------------------------------------------- # # The data you have obtained from this automated Natural Resources Conservation Service # database are subject to revision regardless of indicated Quality Assurance level. # Data are released on condition that neither the NRCS nor the United States Government # may be held liable for any damages resulting from its use. # # SNOTEL air temperature data contains a known bias. This bias is rooted in the sensor # conversion equation and varies through the output range. Solutions are in development. # For more information go to Air Temperature Bias Correction. # # Help and Tutorials: https://www.nrcs.usda.gov/sites/default/files/2023-03/Report%20Generator%20Help%20Guide.pdf # Air Temperature Bias Correction: https://www.nrcs.usda.gov/wps/portal/wcc/home/snowClimateMonitoring/temperature/temperatureBiasCorrection/ # # Support Contact: usdafpacbc@servicenowservices.com # #------------------------------------------------------------------------------------------------------ # # Reporting Frequency: Monthly # Date Range: Period of Record # Report Instantaneous Data As: Start of Month # # Data for the following site(s) are contained in this file: # # SNOW COURSE/AERIAL MARKER 18E23: Little Alps, OR # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Snow Water Equivalent Collection date None Instantaneous - Start of Month N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # Snow Depth Value None Instantaneous - Start of Month N/A Inches N/A SNWD Total snow depth # Snow Water Equivalent Value None Instantaneous - Start of Month N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # # Quality Control flags included: # # Flag Name Description # V Valid Validated Data # N No Profile No profile for automated validation # E Edit Edit, minor adjustment for sensor noise # K Estimate Estimate # C Correction A different equation has been applied to the original sensor voltage # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # X External Estimate External estimate # S Suspect Suspect data # M Missing Value is missing # # Quality Assurance flags included: # # Flag Name Description # U Unknown Unknown # R Raw No Human Review # P Provisional Preliminary Human Review # A Approved Processing and Final Review Completed # #------------------------------------------------------------------------------------------------------ # # Little Alps (18E23) # Oregon SNOW COURSE/AERIAL MARKER Site - 6360 ft # Reporting Frequency: Monthly; Date Range: Period of Record # # As of: Apr 5, 2025, 8:31:20 AM GMT-08:00 # Water Year,Jan,Jan,Jan,Feb,Feb,Feb,Mar,Mar,Mar,Apr,Apr,Apr,May,May,May,Jun,Jun,Jun ,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values,Snow Water Equivalent Collection Date Start of Month Values,Snow Depth (in) Start of Month Values,Snow Water Equivalent (in) Start of Month Values 1959,Dec 23,3,0.8,Jan 22,18,4.5,Feb 25,32,8.0,Mar 26,36,9.7,Apr 28,18,6.9,,, 1960,Dec 29,8,1.4,Jan 27,18,3.7,Feb 26,37,7.9,Mar 28,30,10.0,Apr 27,23,8.7,,, 1961,Dec 28,24,5.3,Jan 24,22,6.4,Feb 27,33,8.8,Mar 27,45,13.0,Apr 27,30,10.4,,, 1962,Dec 27,33,9.0,Jan 27,35,10.5,Feb 26,45,12.0,Mar 28,56,18.3,Apr 26,26,9.8,,, 1963,Dec 26,10,2.1,Jan 29,19,3.4,Feb 24,11,3.0,Mar 25,20,5.6,Apr 24,32,9.4,,, 1964,Dec 27,18,4.1,Jan 27,35,8.4,Feb 27,39,10.7,Mar 24,54,15.5,Apr 27,50,16.5,,, 1965,Dec 28,37,8.9,Jan 26,56,12.6,Feb 23,61,17.8,Mar 29,61,21.6,Apr 26,40,17.1,,, 1966,Dec 29,15,2.0,Jan 26,28,5.5,Feb 28,39,10.5,Mar 29,40,14.1,Apr 28,21,8.6,,, 1967,Dec 30,24,5.8,Jan 31,34,10.4,Feb 28,39,13.0,Mar 31,54,15.4,Apr 27,66,20.2,,, 1968,Dec 29,14,4.2,Jan 31,31,7.5,Feb 29,24,8.8,Mar 28,24,7.9,Apr 30,20,8.0,,, 1969,Dec 30,38,8.7,Jan 27,42,11.2,Feb 28,49,15.2,Mar 27,50,17.5,Apr 28,34,14.9,,, 1970,Dec 30,19,4.2,Jan 30,36,10.5,Feb 27,36,12.7,Mar 31,57,16.0,Apr 30,55,19.6,,, 1971,Dec 30,32,7.7,Jan 29,42,13.2,Feb 26,40,12.6,Mar 29,51,16.8,Apr 30,43,15.9,,, 1972,Dec 30,48,11.3,Jan 27,62,18.7,Feb 28,63,23.0,Mar 30,61,24.4,Apr 28,53,23.2,,, 1973,Dec 29,17,3.4,Jan 30,25,5.5,Feb 28,27,7.0,Mar 28,31,8.2,Apr 27,21,6.6,,, 1974,Jan 02,43,10.2,Jan 28,47,13.6,Feb 26,55,17.5,Mar 28,56,20.2,Apr 29,56,21.4,,, 1975,Dec 31,25,4.6,Jan 27,33,8.6,Feb 26,48,15.0,Mar 27,62,19.2,Sep 01,,17.5,,, 1976,Dec 29,14,3.9,Jan 27,27,8.4,Feb 26,40,10.4,Mar 30,47,13.6,Apr 28,46,15.4,,, 1977,Dec 27,4,2.6,Jan 28,6,1.3,Feb 24,14,2.6,Mar 29,34,6.3,Apr 29,2,0.9,,, 1978,Dec 27,18,4.1,Jan 25,28,7.0,Feb 23,34,9.2,Mar 27,32,10.8,Apr 26,30,10.5,,, 1979,Dec 28,25,6.2,Jan 26,33,6.9,Feb 27,49,12.4,Mar 28,46,13.3,Apr 25,47,15.3,,, 1980,Dec 27,17,3.4,Jan 30,29,7.1,Feb 29,33,9.0,Mar 27,51,13.0,Apr 29,25,8.3,,, 1981,Dec 29,5,1.1,Jan 29,15,2.6,Feb 27,14,3.4,Mar 27,26,5.1,Apr 30,8,2.9,,, 1982,Dec 28,34,5.2,Jan 28,43,11.4,Feb 26,40,12.8,Mar 29,54,17.2,Apr 29,46,17.4,,, 1983,Dec 29,34,7.2,Jan 28,39,10.0,Mar 01,52,14.5,Mar 31,66,17.2,Apr 28,52,18.4,,, 1984,Dec 30,36,8.0,Mar 01,,8.0,Mar 01,44,11.6,Mar 29,58,14.5,Sep 01,,16.8,,, 1985,Dec 27,34,8.3,Jan 31,35,10.6,Feb 28,41,12.6,Mar 28,54,15.8,Sep 01,,12.7,,, 1986,Dec 26,23,6.0,Jan 31,31,8.8,Feb 28,39,11.8,Mar 26,39,13.7,,,,,, 1987,Dec 29,18,4.0,Jan 29,31,7.5,Feb 24,39,9.6,Mar 26,39,11.1,,,,,, 1988,Dec 28,17,3.2,Jan 25,26,6.6,Feb 26,32,9.2,Mar 30,46,11.2,,,,,, 1989,Dec 29,30,7.4,Jan 27,45,12.5,Feb 24,50,15.4,Mar 31,56,17.2,,,,,, 1990,Dec 27,2,0.6,Jan 29,21,4.1,Feb 28,25,5.8,Mar 27,26,7.8,,,,,, 1991,Dec 27,16,3.1,Jan 28,25,4.8,Feb 25,22,6.2,Mar 28,42,10.1,,,,,, 1992,Jan 02,21,4.9,Jan 30,27,6.6,Feb 28,27,7.6,Mar 27,25,8.6,,,,,, 1993,Jan 04,39,8.5,Jan 29,47,12.6,Feb 25,47,13.8,Mar 26,43,14.7,,,,,, 1994,Dec 27,13,2.6,Jan 28,22,5.6,Feb 25,38,7.9,Apr 01,26,8.1,,,,,, 1995,Dec 30,24,6.5,Feb 01,29,7.4,Feb 27,27,8.4,Mar 31,37,11.6,,,,,, 1996,Jan 02,9,2.0,Jan 29,41,7.7,Feb 29,33,8.2,Mar 28,34,9.0,,,,,, 1997,Dec 30,38,9.7,Feb 03,42,11.6,Mar 03,57,15.4,Mar 27,41,14.7,,,,,, 1998,Dec 24,18,2.9,Jan 29,31,8.8,Feb 25,44,12.3,Mar 30,35,13.5,,,,,, 1999,Dec 28,33,7.4,Jan 28,39,10.8,Feb 26,55,15.3,Mar 29,50,16.9,,,,,, 2000,Dec 28,12,3.1,Jan 28,29,7.4,Feb 28,41,11.1,Mar 28,44,13.7,,,,,, 2001,Dec 27,21,5.1,Jan 29,26,6.6,Feb 27,28,8.0,Mar 30,25,7.3,,,,,, 2002,Dec 26,23,6.1,Jan 28,38,10.2,Feb 26,40,12.1,Mar 26,50,15.5,,,,,, 2003,Dec 30,18,3.0,Jan 30,16,5.8,Feb 25,28,8.2,Apr 01,36,11.8,,,,,, 2004,Jan 01,37,6.6,Jan 29,44,11.6,Feb 26,51,13.7,Mar 30,40,14.2,,,,,, 2005,Dec 27,15,4.2,Jan 26,19,5.5,Feb 25,26,6.4,Mar 31,31,8.2,,,,,, 2006,Dec 29,19,5.2,Jan 27,38,10.3,Feb 27,42,13.4,Mar 29,51,16.0,,,,,, 2007,Dec 28,23,3.2,Jan 31,24,6.1,Feb 28,36,8.0,Mar 29,29,8.4,,,,,, 2008,Jan 03,26,5.5,Jan 30,42,9.8,Feb 28,42,13.2,Apr 03,52,17.6,,,,,, 2009,Dec 29,24,5.0,Jan 30,29,8.0,Mar 02,34,9.7,Mar 31,55,15.9,,,,,, 2010,Dec 31,17,3.0,Jan 28,25,5.1,Mar 01,29,7.6,Mar 29,32,8.1,,,,,, 2011,,,5.4,,,7.0,,,10.3,,,13.5,,,,,, 2012,,,,Jan 31,28,6.4,Mar 01,40,9.6,Mar 30,44,13.4,,,,,, 2013,,,,Feb 04,33,8.4,Feb 28,40,10.6,Apr 01,34,11.7,,,,,, 2014,,,,Jan 31,23,5.8,Feb 28,34,10.2,Mar 27,37,12.0,,,,,, 2015,,,,Jan 30,17,5.2,Feb 27,22,6.3,Mar 27,14,4.4,May 01,0,0.0,,, 2016,,,,Feb 01,37,9.1,Mar 01,33,11.3,Mar 31,41,13.4,,,,,, 2017,,,,Feb 01,42,10.8,Mar 02,49,15.6,Apr 03,38,13.9,,,,,, 2018,,,,Jan 31,22,5.0,Mar 01,32,6.4,Mar 30,33,9.7,,,,,, 2019,,,,Jan 31,28,6.4,Feb 27,53,12.8,Apr 02,46,15.0,,,,,, 2020,,,,Jan 30,31,6.7,Feb 28,41,11.8,,,,,,,,, 2021,,,,Feb 01,28,6.6,Mar 01,53,13.0,Mar 31,46,13.6,,,,,, 2022,,,,Jan 26,24,7.0,Feb 24,32,8.6,Mar 30,21,6.8,,,,,, 2023,,,,Jan 31,30,7.4,Feb 28,38,9.0,Mar 28,50,13.4,,,,,, 2024,,,,Jan 30,21,5.6,Feb 28,32,7.4,Mar 27,34,11.2,,,,,, 2025,,,,Jan 28,27,6.4,Feb 26,40,10.8,Mar 31,43,11.6,,,,,,