#------------------------------------------------- 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:
#
#	SNOTEL 482: Flattop Mtn., 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 Depth             Value                     None           Instantaneous - Start of Month  N/A        Inches             N/A           SNWD          Total snow depth                                                                                   
# Snow Water Equivalent  % of average (1991-2020)  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
# 
#------------------------------------------------------------------------------------------------------
# 
# Flattop Mtn. (482) 
# Montana  SNOTEL Site - 6280 ft
# Reporting Frequency: Monthly; Date Range: Period of Record
#
# As of: Apr 17, 2026, 1:10:39 PM GMT-08:00
#
Date,Flattop Mtn. (482) Snow Depth (in) Start of Month Values,Flattop Mtn. (482) Snow Water Equivalent % of Average (1991-2020) Start of Month Values
Jan 1970,,71
Jan 1971,,88
Jan 1972,,141
Jan 1973,,130
Jan 1974,,139
Jan 1975,,120
Jan 1976,,149
Jan 1977,,66
Jan 1978,,129
Jan 1979,,90
Jan 1980,,97
Jan 1981,,137
Jan 1982,,89
Jan 1983,,106
Jan 1984,,72
Jan 1985,,161
Jan 1986,,94
Jan 1987,,108
Jan 1988,,58
Jan 1989,,88
Jan 1990,,105
Jan 1991,,176
Jan 1992,,96
Jan 1993,,89
Jan 1994,,77
Jan 1995,,124
Jan 1996,,138
Jan 1997,,173
Jan 1998,,75
Jan 1999,,153
Jan 2000,,80
Jan 2001,,53
Jan 2002,64,99
Jan 2003,72,86
Jan 2004,72,97
Jan 2005,56,89
Jan 2006,52,72
Jan 2007,62,90
Jan 2008,82,97
Jan 2009,60,63
Jan 2010,84,109
Jan 2011,68,99
Jan 2012,67,88
Jan 2013,85,118
Jan 2014,74,101
Jan 2015,68,90
Jan 2016,61,88
Jan 2017,77,103
Jan 2018,73,79
Jan 2019,61,82
Jan 2020,75,114
Jan 2021,72,115
Jan 2022,80,102
Jan 2023,66,97
Jan 2024,38,60
Jan 2025,63,90
Jan 2026,74,122