#------------------------------------------------- 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 HRT: Heart Lake, CA # # 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 # #------------------------------------------------------------------------------------------------------ # # Heart Lake (HRT) # California SNOW COURSE/AERIAL MARKER Site - 10100 ft # Reporting Frequency: Monthly; Date Range: Period of Record # # As of: Mar 28, 2024, 7:13:39 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 1940,,,,,,,,,,Apr 06,,37.4,,,,,, 1941,,,,,,,,,,,,,,,,,, 1942,,,,,,,,,,,,,,,,,, 1943,,,,,,,,,,,,,,,,,, 1944,,,,,,,,,,Apr 05,,22.7,,,,,, 1945,,,,,,,,,,Apr 05,,32.9,,,,,, 1946,,,,,,,,,,Apr 10,,30.7,,,,,, 1947,,,,,,,,,,Apr 02,,20.0,,,,,, 1948,,,,,,,,,,Apr 09,,18.8,Apr 30,,21.8,,, 1949,,,,,,,,,,Mar 30,,22.6,,,,,, 1950,,,,,,,,,,Apr 04,,25.1,,,,,, 1951,Jan 08,,18.5,,,,,,,Apr 03,,25.5,May 04,,27.6,,, 1952,,,,Feb 03,,30.9,,,,Apr 03,,41.9,,,,,, 1953,,,,Jan 22,,18.6,,,,Mar 26,,17.7,,,,,, 1954,,,,Jan 31,,9.3,,,,Mar 31,,27.7,,,,,, 1955,,,,Jan 25,,17.0,,,,Mar 30,,20.9,,,,,, 1956,,,,Feb 03,,43.0,,,,Mar 31,,40.6,,,,,, 1957,,,,Jan 29,,7.0,Mar 04,,13.9,Mar 26,,18.9,,,,,, 1958,,,,Jan 30,,15.0,Feb 28,,25.0,Apr 05,,45.9,,,,,, 1959,,,,Jan 27,,7.2,Feb 25,,18.4,Mar 28,,17.4,,,,,, 1960,,,,Feb 06,,9.4,Mar 02,,13.5,Mar 29,,15.5,,,,,, 1961,,,,Feb 06,,9.4,Mar 02,,10.6,Mar 29,,13.5,,,,,, 1962,,,,,,,Mar 04,,32.0,Mar 27,,39.4,,,,,, 1963,,,,,,,Feb 26,,16.8,Apr 02,,27.2,,,,,, 1964,,,,Jan 28,,10.6,Feb 27,,11.0,Apr 02,,13.7,,,,,, 1965,,,,Jan 28,,26.0,Mar 02,,27.2,Mar 30,,27.5,,,,,, 1966,,,,Jan 31,,20.7,Feb 28,,22.4,Mar 29,,22.2,,,,,, 1967,,,,,,,,,,Mar 30,,36.9,May 01,,50.4,,, 1968,,,,,,,,,,Apr 02,,15.4,,,,,, 1969,,,,,,,,,,Mar 25,,60.8,,,,May 30,,37.9 1970,,,,,,,,,,Mar 31,,21.5,,,,,, 1971,,,,,,,,,,Mar 30,,22.4,,,,,, 1972,,,,,,,,,,Mar 28,,16.2,,,,,, 1973,,,,,,,,,,Mar 29,,37.2,,,,,, 1974,,,,,,,,,,Apr 02,,35.6,Apr 30,,34.6,,, 1975,,,,,,,,,,Mar 27,,27.6,May 01,,32.0,,, 1976,,,,,,,Mar 10,,6.8,Mar 30,,6.2,,,,,, 1977,,,,,,,,,,Mar 29,,5.2,,,,,, 1978,,,,,,,,,,Mar 28,,48.2,,,,,, 1979,,,,,,,,,,Mar 31,,33.0,,,,,, 1980,,,,,,,,,,Mar 26,,44.6,,,,,, 1981,,,,,,,,,,Mar 31,,23.6,,,,,, 1982,Jan 07,,21.2,,,,,,,Apr 07,,41.6,,,,,, 1983,,,,,,,Mar 05,,46.8,Mar 30,,56.3,,,,,, 1984,,,,,,,,,,Mar 28,,26.4,,,,,, 1985,,,,,,,,,,Mar 29,,18.4,,,,,, 1986,,,,,,,,,,Mar 31,,46.1,,,,,, 1987,,,,,,,,,,Mar 30,,15.5,,,,,, 1988,,,,,,,,,,Mar 29,,16.5,,,,,, 1989,,,,,,,,,,Mar 27,,18.8,,,,,, 1990,,,,,,,,,,Mar 27,,13.4,,,,,, 1991,,,,,,,,,,Apr 02,,22.6,,,,,, 1992,,,,,,,,,,Mar 31,,17.6,,,,,, 1993,,,,,,,,,,Mar 30,,41.1,May 04,,43.3,,, 1994,,,,,,,,,,Mar 29,,15.7,,,,,, 1995,,,,,,,,,,Mar 28,,52.0,,,,,, 1996,,,,,,,,,,Apr 03,,29.1,May 01,,25.6,May 21,,16.6 1997,,,,,,,,,,Apr 04,,30.9,,,,,, 1998,,,,,,,,,,,,,,,,,, 1999,,,,,,,,,,,,,,,,,, 2000,,,,,,,,,,Mar 28,,29.2,Apr 25,,27.9,,, 2001,,,,,,,,,,Mar 27,,19.6,,,,,, 2002,,,,,,,,,,Mar 26,,22.8,,,,,, 2003,,,,,,,,,,Apr 01,,18.9,Apr 30,,24.4,,, 2004,,,,Jan 29,,14.0,Mar 03,,26.2,Mar 30,,23.5,,,,,, 2005,,,,,,,Mar 01,,37.6,Mar 31,,37.3,Apr 26,,37.1,,, 2006,,,,Feb 01,,23.8,,,,Mar 30,,38.3,Apr 25,,50.2,,, 2007,,,,Feb 01,,9.0,,,,Mar 29,,11.9,,,,,, 2008,,,,,,,,,,Mar 25,,24.1,,,,,, 2009,,,,,,,,,,Mar 24,,23.2,Apr 28,,20.4,,, 2010,,,,,,,Feb 25,,24.2,Mar 23,,32.5,Apr 29,,29.2,,, 2011,Dec 28,,24.0,Jan 25,,27.8,Feb 22,,32.2,Mar 29,,46.0,Apr 27,,44.2,,, 2012,Dec 27,,2.3,Jan 25,,7.6,Feb 22,,8.7,Mar 29,,13.2,May 01,,9.2,,, 2013,Dec 31,,14.4,Jan 30,,16.8,Feb 26,,16.3,Mar 26,,16.6,Apr 23,,12.7,,, 2014,Dec 26,,2.0,Jan 28,,2.5,Feb 25,,5.5,Apr 03,,14.0,Apr 29,,9.5,,, 2015,,,,Jan 28,,5.0,Feb 24,,7.0,Mar 25,,6.0,Apr 28,,0.0,,, 2016,Dec 29,,10.0,Jan 26,,17.5,Feb 23,,22.5,Mar 30,,25.0,May 03,,24.0,,, 2017,Dec 27,,10.0,Jan 25,,36.0,Mar 01,,53.0,Mar 28,,54.0,Apr 25,,60.5,,, 2018,,,,Jan 23,,5.0,Feb 21,,6.5,Mar 27,,21.5,Apr 24,,17.5,,, 2019,Jan 02,,8.0,Jan 29,,17.5,Mar 01,,31.5,Mar 26,,37.5,May 01,,34.0,,, 2020,Dec 31,,10.5,Jan 28,,12.5,Feb 25,,12.5,Mar 31,,14.5,Apr 28,,15.1,,, 2021,Dec 30,,5.0,Feb 05,,12.5,Feb 24,,13.5,Mar 30,,15.0,Apr 27,,9.5,,, 2022,,,,Jan 25,,14.0,Feb 24,,14.5,Mar 30,,13.5,Apr 26,,9.0,,, 2023,,,,Jan 31,,37.0,Mar 03,,48.0,Mar 26,,60.5,Apr 27,,63.0,,, 2024,Dec 26,,1.5,Jan 30,,8.5,Feb 27,,20.5,,,,,,,,,