#------------------------------------------------- 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: Hourly # Date Range: 2024-05-09 04:00 to 2024-05-12 03:00 # # Data for the following site(s) are contained in this file: # # SNOTEL 641: Frostbite Bottom, AK # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Air Temperature Observed Value None Instantaneous N/A Degrees fahrenheit N/A TOBS Instantaneously observed air temperature # Precipitation Accumulation Value None Instantaneous N/A Inches N/A PREC Water year accumulated precipitation # Snow Water Equivalent Value None Instantaneous 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 N/A Inches N/A SNWD Total snow depth # Relative Humidity Value None Instantaneous N/A Percent N/A RHUM Relative humidity # Solar Radiation Average Value None Hour N/A Watts/meter squared N/A SRADV Average solar radiation # Wind Speed Maximum Value None Hour N/A Miles/hour N/A WSPDX Maximum wind speed # Wind Speed Average Value None Hour N/A Miles/hour N/A WSPDV Average wind speed # Wind Direction Average Value None Hour N/A Degrees N/A WDIRV Average wind direction # # 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 # #------------------------------------------------------------------------------------------------------ # # Frostbite Bottom (641) # Alaska SNOTEL Site - 2700 ft # Reporting Frequency: Hourly; Date Range: 2024-05-09 04:00 to 2024-05-12 03:00 # # As of: May 12, 2024, 3:48:03 AM GMT-08:00 # Date,Air Temperature Observed (degF),Precipitation Accumulation (in),Snow Water Equivalent (in),Snow Depth (in),Relative Humidity (pct),Solar Radiation Average (watt/m2),Wind Speed Maximum (mph),Wind Speed Average (mph),Wind Direction Average (degree) 2024-05-09 04:00,29.0,22.7,18.1,44,86.00,4.33,5.3,2.4,266 2024-05-09 05:00,28.0,22.7,18.1,44,86.00,33.26,5.5,3.1,259 2024-05-09 06:00,29.0,22.7,18.1,44,85.00,52.92,4.9,2.2,254 2024-05-09 07:00,30.0,22.7,18.1,44,84.00,89.20,3.5,1.2,229 2024-05-09 08:00,32.0,22.7,18.1,44,80.00,121.90,7.5,2.4,204 2024-05-09 09:00,35.0,22.7,18.1,44,80.00,228.60,3.4,1.3,259 2024-05-09 10:00,37.0,22.7,18.1,44,67.00,344.00,3.9,1.8,144 2024-05-09 11:00,37.0,22.7,18.1,44,76.00,410.90,6.1,2.3,249 2024-05-09 12:00,34.0,22.7,18.1,44,82.00,508.90,8.2,4.7,258 2024-05-09 13:00,39.0,22.7,18.1,43,70.00,505.20,3.9,1.3,240 2024-05-09 14:00,39.0,22.7,18.1,44,75.00,339.20,2.4,1.3,185 2024-05-09 15:00,34.0,22.7,18.1,43,90.00,278.40,7.1,2.4,130 2024-05-09 16:00,33.0,22.8,18.1,43,97.00,288.00,15.6,9.0,299 2024-05-09 17:00,32.0,22.8,18.2,44,80.00,177.20,20.6,13.0,247 2024-05-09 18:00,30.0,22.8,18.2,44,87.00,98.30,13.2,4.2,137 2024-05-09 19:00,30.0,22.8,18.2,45,96.00,45.01,5.2,2.8,96 2024-05-09 20:00,29.0,22.9,18.3,45,97.00,18.26,10.8,3.7,75 2024-05-09 21:00,27.0,22.9,18.3,46,96.00,1.68,6.0,2.4,68 2024-05-09 22:00,27.0,22.9,18.3,47,96.00,0.13,14.5,5.8,202 2024-05-09 23:00,26.0,22.9,18.3,47,92.00,0.00,7.5,1.6,54 2024-05-10 00:00,27.0,22.9,18.3,47,86.00,0.00,10.3,5.0,19 2024-05-10 01:00,27.0,22.9,18.4,47,84.00,0.00,5.0,2.3,286 2024-05-10 02:00,28.0,22.9,18.3,47,79.00,0.00,6.1,3.6,261 2024-05-10 03:00,28.0,22.9,18.3,47,78.00,0.10,6.5,3.2,249 2024-05-10 04:00,25.0,22.9,18.3,47,75.00,3.24,8.0,5.4,265 2024-05-10 05:00,24.0,22.9,18.3,47,72.00,23.81,8.3,5.2,259 2024-05-10 06:00,28.0,22.9,18.3,47,66.00,40.55,7.6,4.8,259 2024-05-10 07:00,30.0,23.0,18.4,47,65.00,76.81,7.1,2.8,250 2024-05-10 08:00,33.0,23.0,18.4,46,61.00,464.10,4.1,1.9,246 2024-05-10 09:00,34.0,23.0,18.4,46,56.00,522.60,5.4,2.8,229 2024-05-10 10:00,42.0,23.0,18.4,46,53.00,667.20,5.2,1.9,243 2024-05-10 11:00,42.0,23.0,18.4,46,54.00,749.20,6.2,2.2,150 2024-05-10 12:00,44.0,23.0,18.3,46,59.00,699.90,13.2,3.7,132 2024-05-10 13:00,37.0,23.0,18.3,45,44.00,729.70,12.1,4.6,165 2024-05-10 14:00,38.0,23.0,18.3,45,52.00,457.00,11.0,5.0,136 2024-05-10 15:00,37.0,23.0,18.3,44,49.00,418.10,17.8,5.7,114 2024-05-10 16:00,36.0,22.9,18.3,44,47.00,348.50,13.2,3.8,119 2024-05-10 17:00,36.0,22.9,18.3,44,48.00,272.00,13.7,4.6,184 2024-05-10 18:00,35.0,22.9,18.3,44,51.00,138.70,10.6,3.3,203 2024-05-10 19:00,34.0,22.9,18.3,44,55.00,58.25,9.9,3.3,218 2024-05-10 20:00,33.0,22.9,18.4,44,54.00,18.76,4.8,2.4,229 2024-05-10 21:00,33.0,22.9,18.4,44,58.00,2.99,6.6,3.9,242 2024-05-10 22:00,33.0,22.9,18.4,44,57.00,0.20,8.0,2.4,146 2024-05-10 23:00,34.0,22.9,18.4,44,55.00,0.00,7.8,4.4,165 2024-05-11 00:00,34.0,22.9,18.3,44,54.00,0.00,9.1,4.3,163 2024-05-11 01:00,33.0,22.9,18.3,44,59.00,0.00,10.0,4.8,174 2024-05-11 02:00,33.0,22.9,18.3,44,59.00,0.00,9.8,4.2,210 2024-05-11 03:00,34.0,22.9,18.3,44,55.00,0.24,12.9,5.6,166 2024-05-11 04:00,35.0,22.9,18.4,44,51.00,5.61,13.2,5.7,151 2024-05-11 05:00,34.0,22.9,18.3,44,52.00,28.43,12.1,6.0,150 2024-05-11 06:00,36.0,22.9,18.3,44,44.00,69.68,14.2,7.0,193 2024-05-11 07:00,34.0,23.0,18.3,44,50.00,111.00,11.2,6.0,195 2024-05-11 08:00,34.0,23.0,18.3,44,55.00,169.40,12.3,4.2,215 2024-05-11 09:00,36.0,23.0,18.3,44,57.00,267.80,12.7,4.4,213 2024-05-11 10:00,36.0,23.0,18.3,44,59.00,313.30,7.6,3.2,171 2024-05-11 11:00,38.0,23.0,18.3,44,59.00,457.90,5.8,3.2,256 2024-05-11 12:00,39.0,23.0,18.3,43,60.00,399.50,6.3,2.5,187 2024-05-11 13:00,39.0,23.0,18.3,44,64.00,353.60,6.6,2.1,167 2024-05-11 14:00,39.0,23.0,18.3,43,68.00,355.10,6.4,2.0,134 2024-05-11 15:00,44.0,23.0,18.3,43,61.00,399.70,8.8,3.4,266 2024-05-11 16:00,41.0,23.0,18.3,43,63.00,322.10,7.2,2.0,263 2024-05-11 17:00,40.0,22.9,18.3,43,61.00,213.50,4.5,2.2,342 2024-05-11 18:00,38.0,23.0,18.3,43,69.00,122.60,4.1,2.0,321 2024-05-11 19:00,38.0,22.9,18.3,43,70.00,68.44,7.0,1.8,22 2024-05-11 20:00,35.0,23.0,18.3,43,78.00,29.28,14.3,7.8,239 2024-05-11 21:00,35.0,23.0,18.3,44,69.00,2.75,9.0,4.3,228 2024-05-11 22:00,35.0,22.9,18.3,44,71.00,0.30,9.9,4.6,237 2024-05-11 23:00,35.0,23.0,18.3,44,70.00,0.00,8.3,2.6,273 2024-05-12 00:00,34.0,22.9,18.3,44,67.00,0.00,7.1,3.6,312 2024-05-12 01:00,35.0,22.9,18.3,44,66.00,0.00,7.0,3.1,269 2024-05-12 02:00,34.0,22.9,18.3,44,68.00,,,,