#------------------------------------------------- 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: Daily # Date Range: 1980-10-01 to 1981-09-30 # Report Instantaneous Data As: Start of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 603: Lower Twin, 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 Median (1981-2010) None Instantaneous - Start of Day 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 # #------------------------------------------------------------------------------------------------------ # # Lower Twin (603) # Montana SNOTEL Site - 7900 ft # Reporting Frequency: Daily; Date Range: 1980-10-01 to 1981-09-30 # # As of: Apr 27, 2024, 10:52:03 PM GMT-08:00 # Day,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep ,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values,Median Snow Water Equivalent (1981-2010) (in) Start of Month Values 01,0.0,2.2,5.1,8.2,11.0,13.0,16.6,18.4,13.5,0.0,0.0,0.0 02,0.0,2.3,5.2,8.2,11.0,13.1,16.7,18.3,13.0,0.0,0.0,0.0 03,0.0,2.4,5.4,8.3,11.1,13.2,16.8,18.2,12.4,0.0,0.0,0.0 04,0.0,2.4,5.5,8.4,11.2,13.4,16.8,18.2,11.8,0.0,0.0,0.0 05,0.0,2.5,5.6,8.5,11.2,13.5,16.9,18.2,11.4,0.0,0.0,0.0 06,0.0,2.6,5.7,8.5,11.2,13.6,17.0,18.2,10.9,0.0,0.0,0.0 07,0.0,2.6,5.8,8.7,11.3,13.8,17.2,18.2,10.4,0.0,0.0,0.0 08,0.0,2.7,5.9,8.8,11.3,13.9,17.3,18.3,9.8,0.0,0.0,0.0 09,0.0,2.8,6.0,9.0,11.4,14.0,17.4,18.5,9.2,0.0,0.0,0.0 10,0.2,2.8,6.0,9.1,11.5,14.0,17.6,18.7,8.6,0.0,0.0,0.0 11,0.3,2.9,6.1,9.2,11.5,14.1,17.7,18.9,7.8,0.0,0.0,0.0 12,0.4,3.0,6.1,9.3,11.6,14.1,17.8,19.0,6.9,0.0,0.0,0.0 13,0.5,3.1,6.2,9.4,11.7,14.1,17.9,19.1,6.0,0.0,0.0,0.0 14,0.6,3.2,6.2,9.4,11.8,14.2,18.0,19.2,5.2,0.0,0.0,0.0 15,0.7,3.3,6.2,9.5,11.9,14.3,18.0,19.3,4.5,0.0,0.0,0.0 16,0.7,3.5,6.3,9.5,12.0,14.4,17.9,19.2,3.6,0.0,0.0,0.0 17,0.8,3.6,6.3,9.6,12.1,14.6,18.0,19.1,2.8,0.0,0.0,0.0 18,0.8,3.8,6.3,9.6,12.2,14.7,18.0,18.8,2.1,0.0,0.0,0.0 19,0.8,3.9,6.4,9.7,12.3,14.8,18.0,18.5,1.4,0.0,0.0,0.0 20,0.9,4.0,6.5,9.8,12.4,15.0,18.0,18.3,0.6,0.0,0.0,0.0 21,1.0,4.1,6.6,9.8,12.4,15.1,18.0,18.0,0.2,0.0,0.0,0.0 22,1.1,4.2,6.7,9.9,12.5,15.2,18.1,17.7,0.0,0.0,0.0,0.0 23,1.2,4.3,6.8,10.0,12.6,15.3,18.2,17.5,0.0,0.0,0.0,0.0 24,1.3,4.4,7.0,10.1,12.7,15.4,18.2,17.3,0.0,0.0,0.0,0.0 25,1.4,4.5,7.1,10.2,12.7,15.6,18.2,17.1,0.0,0.0,0.0,0.0 26,1.6,4.6,7.3,10.3,12.8,15.8,18.3,16.8,0.0,0.0,0.0,0.0 27,1.7,4.7,7.5,10.4,12.8,15.9,18.3,16.3,0.0,0.0,0.0,0.0 28,1.8,4.8,7.7,10.6,12.9,16.1,18.3,15.9,0.0,0.0,0.0,0.0 29,1.9,4.9,7.8,10.7,,16.2,18.3,15.3,0.0,0.0,0.0,0.0 30,2.0,5.0,8.0,10.8,,16.4,18.4,14.8,0.0,0.0,0.0,0.0 31,2.1,,8.1,10.9,,16.5,,14.1,,0.0,0.0,