#------------------------------------------------- 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 12C17: Cottonwood Creek, MT # # 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 # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # K Estimate Estimate # X External Estimate External estimate # S Suspect Suspect data # # 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 # #------------------------------------------------------------------------------------------------------ # # Cottonwood Creek (12C17) # Montana SNOW COURSE/AERIAL MARKER Site - 6400 ft # Reporting Frequency: Monthly; Date Range: Period of Record # # As of: Mar 28, 2024, 12:55:41 PM 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 1974,,,,,,,,,,Mar 28,29,9.6,,,,,, 1975,,,,,,,Feb 28,27,8.2,Mar 26,34,9.6,May 02,52,15.8,,, 1976,,,,,,,Mar 04,38,10.2,Mar 25,39,11.9,,,,,, 1977,,,,,,,Mar 02,21,4.7,Apr 01,29,6.5,Apr 29,0,0.0,,, 1978,,,,,,,Mar 07,32,8.0,Apr 03,23,7.0,Apr 26,20,7.0,,, 1979,,,,,,,Feb 23,31,7.1,Mar 27,36,10.2,Apr 25,42,13.4,,, 1980,,,,,,,Feb 28,22,5.6,Apr 07,37,9.8,May 04,4,1.4,,, 1981,,,,,,,Feb 27,15,4.1,Apr 03,30,7.9,May 01,7,2.6,,, 1982,,,,,,,Feb 26,25,7.0,Mar 29,40,10.3,Apr 29,39,14.0,,, 1983,,,,,,,Feb 23,20,5.2,Mar 28,27,7.4,Apr 28,30,9.2,,, 1984,,,,,,,Mar 02,24,5.3,,,,Apr 27,40,11.0,,, 1985,,,,,,,Feb 27,34,8.3,Mar 29,43,10.6,Apr 29,22,8.4,,, 1986,,,,,,,Mar 04,18,4.8,Apr 03,23,7.3,May 01,24,7.0,,, 1987,,,,,,,Feb 25,19,3.7,Mar 31,23,6.2,Apr 27,0,0.0,,, 1988,,,,,,,Feb 25,22,5.0,Apr 03,26,6.8,Apr 29,18,6.6,,, 1989,,,,,,,Mar 03,32,6.2,Mar 30,37,9.2,May 01,24,8.6,,, 1990,,,,,,,Mar 05,22,4.4,Apr 03,27,7.8,May 01,14,4.6,,, 1991,,,,,,,Mar 03,22,5.4,Apr 02,26,7.3,May 02,28,9.4,,, 1992,,,,,,,Feb 27,19,4.8,Mar 30,18,6.2,Apr 27,5,1.4,,, 1993,,,,,,,Mar 02,24,4.8,Mar 31,17,5.2,Apr 26,29,9.1,,, 1994,,,,,,,Feb 23,22,4.2,Mar 29,30,7.2,Apr 29,15,4.2,,, 1995,,,,,,,Feb 22,20,6.2,Mar 30,31,8.8,Apr 25,36,11.8,,, 1996,,,,,,,Feb 28,17,4.0,Mar 25,18,5.4,Apr 25,14,3.6,,, 1997,,,,,,,Feb 24,38,9.9,Mar 25,42,13.0,Apr 29,36,12.6,,, 1998,,,,,,,Feb 25,26,6.2,Mar 27,27,7.7,Apr 29,23,8.5,,, 1999,,,,,,,Feb 25,24,6.6,Mar 25,27,8.0,Apr 30,27,8.1,,, 2000,,,,,,,Feb 29,29,6.9,Mar 29,30,7.8,Apr 24,11,3.8,,, 2001,,,,,,,Feb 26,28,6.7,Mar 27,25,4.7,Apr 24,30,8.8,,, 2002,,,,,,,Feb 28,23,3.0,Mar 27,23,5.2,Apr 24,15,4.5,,, 2003,,,,,,,Feb 28,27,6.2,Mar 28,28,8.2,Apr 28,22,7.7,,, 2004,,,,,,,Feb 24,27,7.4,Mar 25,30,9.0,Apr 27,15,6.1,,, 2005,,,,,,,Feb 24,14,3.0,Mar 25,19,4.8,Apr 29,16,6.0,,, 2006,,,,,,,Feb 28,21,5.8,Mar 28,25,7.2,Apr 27,22,8.2,,, 2007,,,,,,,Feb 27,29,6.4,Mar 29,26,6.8,Apr 27,20,6.5,,, 2008,,,,,,,Feb 28,22,4.9,Mar 25,25,6.7,Apr 29,25,8.0,,, 2009,,,,,,,Feb 25,18,4.5,Mar 27,26,7.7,Apr 28,26,8.2,,, 2010,,,,,,,Feb 26,17,3.8,Mar 23,21,4.8,Apr 29,15,4.0,,, 2011,,,,,,,Feb 24,25,5.2,Mar 31,29,8.0,Apr 27,33,9.8,,, 2012,,,,,,,Feb 29,27,5.5,Mar 28,27,8.0,Apr 27,2,0.5,,, 2013,,,,,,,Feb 28,23,5.7,Mar 22,23,6.1,May 04,8,2.7,,, 2014,,,,,,,,,,Mar 27,32,9.1,Apr 28,27,8.2,,, 2015,,,,,,,Feb 26,22,5.2,Mar 23,10,3.0,May 01,0,0.0,,, 2016,,,,,,,Feb 25,21,5.8,Mar 25,28,8.3,Apr 27,5,1.3,,, 2017,,,,,,,Feb 28,24,5.6,Mar 28,16,4.6,Apr 26,0,0.0,,, 2018,,,,,,,Feb 28,37,9.9,Mar 28,36,11.7,Apr 23,31,11.2,,, 2019,,,,,,,Feb 28,41,9.1,Mar 21,34,9.0,Apr 26,5,1.9,,, 2020,,,,,,,Feb 27,24,6.1,Mar 31,26,6.9,Apr 29,0,0.0,,, 2021,,,,,,,Feb 25,26,6.5,Mar 31,20,6.9,Apr 29,0,0.0,,, 2022,,,,,,,Feb 28,25,5.9,Mar 31,14,6.1,Apr 29,16,5.1,,, 2023,,,,,,,Feb 28,34,9.9,Mar 30,48,11.8,Apr 27,33,11.6,,, 2024,,,,,,,Feb 29,18,5.8,,,,,,,,,