#------------------------------------------------- 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: 2023-09-14 02:00 to 2023-09-21 01:00 # # 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 # 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 # Precipitation Accumulation Value None Instantaneous N/A Inches N/A PREC Water year accumulated precipitation # Air Temperature Observed Value None Instantaneous N/A Degrees fahrenheit N/A TOBS Instantaneously observed air temperature # Relative Humidity Value None Instantaneous N/A Percent N/A RHUM Relative humidity # Wind Speed Average Value None Hour N/A Miles/hour N/A WSPDV Average wind speed # Wind Speed Maximum Value None Hour N/A Miles/hour N/A WSPDX Maximum wind speed # Wind Direction Average Value None Hour N/A Degrees N/A WDIRV Average wind direction # Solar Radiation Average Value None Hour N/A Watts/meter squared N/A SRADV Average solar radiation # # 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: 2023-09-14 02:00 to 2023-09-21 01:00 # # As of: Sep 21, 2023, 1:31:38 AM GMT-08:00 # Date,Snow Water Equivalent (in),Snow Depth (in),Precipitation Accumulation (in),Air Temperature Observed (degF),Relative Humidity (pct),Wind Speed Average (mph),Wind Speed Maximum (mph),Wind Direction Average (degree),Solar Radiation Average (watt/m2) 2023-09-14 02:00,0.2,0,44.0,41.0,78.00,3.0,6.4,300,0.14 2023-09-14 03:00,0.2,,44.0,40.0,86.00,3.4,6.6,294,0.03 2023-09-14 04:00,0.2,,44.1,41.0,83.00,3.3,6.8,257,0.03 2023-09-14 05:00,0.2,,44.1,39.0,92.00,1.5,4.6,308,0.20 2023-09-14 06:00,0.2,0,44.1,37.0,98.00,2.8,6.4,265,4.55 2023-09-14 07:00,0.2,,44.1,36.0,99.00,1.8,4.6,259,41.84 2023-09-14 08:00,0.2,,44.1,37.0,96.00,1.6,5.2,89,60.81 2023-09-14 09:00,0.2,,44.1,39.0,99.00,2.1,5.5,91,129.40 2023-09-14 10:00,0.2,0,44.1,41.0,98.00,2.7,6.7,99,181.30 2023-09-14 11:00,0.2,0,44.1,40.0,99.00,5.2,9.2,122,140.00 2023-09-14 12:00,0.2,0,44.1,39.0,100.00,5.3,9.9,113,212.70 2023-09-14 13:00,0.2,0,44.1,41.0,100.00,3.2,8.4,146,141.10 2023-09-14 14:00,0.2,0,44.1,40.0,99.00,3.9,11.2,191,57.78 2023-09-14 15:00,0.2,,44.1,40.0,100.00,6.2,13.1,256,125.70 2023-09-14 16:00,0.2,0,44.1,39.0,87.00,4.2,8.8,257,55.83 2023-09-14 17:00,0.2,0,44.1,38.0,89.00,4.4,11.7,246,44.23 2023-09-14 18:00,0.2,,44.2,38.0,96.00,2.5,5.8,93,14.15 2023-09-14 19:00,0.2,,44.2,38.0,99.00,2.8,5.5,43,1.04 2023-09-14 20:00,0.2,,44.3,35.0,96.00,4.2,17.2,254,0.10 2023-09-14 21:00,0.2,,44.4,35.0,89.00,4.4,13.9,56,0.00 2023-09-14 22:00,0.3,0,44.5,34.0,97.00,4.0,9.8,8,0.04 2023-09-14 23:00,0.3,0,44.5,35.0,95.00,2.5,5.6,308,0.07 2023-09-15 00:00,0.0,0,44.6,35.0,95.00,2.1,5.5,294,0.00 2023-09-15 01:00,0.3,1,44.6,34.0,96.00,2.3,4.8,275,0.00 2023-09-15 02:00,0.3,1,44.7,34.0,95.00,3.1,6.1,262,0.00 2023-09-15 03:00,0.3,1,44.8,35.0,94.00,3.2,5.8,262,0.00 2023-09-15 04:00,0.2,0,44.8,36.0,92.00,3.9,6.9,266,0.00 2023-09-15 05:00,0.2,1,44.8,36.0,89.00,2.7,5.4,260,0.04 2023-09-15 06:00,0.2,0,44.8,38.0,81.00,2.3,5.7,277,3.55 2023-09-15 07:00,0.2,1,44.8,37.0,85.00,2.8,5.9,269,27.39 2023-09-15 08:00,0.2,1,44.8,37.0,86.00,2.4,5.7,270,55.94 2023-09-15 09:00,0.2,1,44.8,38.0,87.00,3.7,6.4,259,106.40 2023-09-15 10:00,0.2,0,44.8,39.0,84.00,2.4,5.9,265,128.60 2023-09-15 11:00,0.2,1,44.8,41.0,83.00,3.9,7.5,276,170.00 2023-09-15 12:00,0.2,,44.8,42.0,82.00,5.4,8.9,252,250.30 2023-09-15 13:00,0.2,,44.8,44.0,69.00,2.8,6.8,236,331.60 2023-09-15 14:00,0.2,,44.8,47.0,59.00,3.4,8.0,146,267.60 2023-09-15 15:00,0.2,,44.7,45.0,76.00,2.5,7.6,220,223.60 2023-09-15 16:00,0.2,1,44.8,46.0,76.00,2.3,6.5,230,146.10 2023-09-15 17:00,0.2,,44.7,45.0,77.00,2.1,6.6,241,76.88 2023-09-15 18:00,0.2,,44.7,45.0,71.00,2.7,8.0,240,21.12 2023-09-15 19:00,0.2,,44.8,43.0,74.00,3.4,9.0,233,3.07 2023-09-15 20:00,0.2,,44.8,43.0,70.00,2.8,9.4,248,0.27 2023-09-15 21:00,0.2,,44.8,43.0,68.00,2.5,7.1,335,0.20 2023-09-15 22:00,0.2,,44.8,42.0,70.00,2.1,7.5,337,0.24 2023-09-15 23:00,0.2,,44.8,42.0,72.00,3.4,9.1,230,0.17 2023-09-16 00:00,0.0,0,44.8,42.0,74.00,3.6,8.5,232,0.14 2023-09-16 01:00,0.2,,44.8,42.0,74.00,2.9,8.8,286,0.17 2023-09-16 02:00,0.2,,44.8,40.0,81.00,2.6,8.3,220,0.00 2023-09-16 03:00,0.2,,44.8,41.0,76.00,3.6,9.9,180,0.00 2023-09-16 04:00,0.2,1,44.8,43.0,67.00,3.1,8.0,132,0.10 2023-09-16 05:00,0.2,1,44.8,42.0,72.00,2.8,7.0,246,0.17 2023-09-16 06:00,0.2,1,44.8,43.0,69.00,2.8,7.0,257,1.12 2023-09-16 07:00,0.2,,44.8,42.0,75.00,2.5,8.0,291,11.75 2023-09-16 08:00,0.2,,44.8,43.0,70.00,3.0,8.8,55,74.13 2023-09-16 09:00,0.2,,44.8,45.0,65.00,2.6,7.3,272,86.10 2023-09-16 10:00,0.2,,44.8,46.0,67.00,3.2,10.3,43,112.60 2023-09-16 11:00,0.2,1,44.8,46.0,64.00,3.2,8.1,78,162.50 2023-09-16 12:00,0.2,,44.8,48.0,59.00,3.7,8.8,62,176.00 2023-09-16 13:00,0.2,,44.8,48.0,60.00,3.7,9.1,86,186.20 2023-09-16 14:00,0.2,,44.7,48.0,59.00,3.6,12.0,102,108.50 2023-09-16 15:00,0.2,,44.7,48.0,58.00,2.9,8.9,152,112.20 2023-09-16 16:00,0.2,,44.7,49.0,60.00,4.2,10.9,190,128.60 2023-09-16 17:00,0.2,,44.7,48.0,61.00,4.5,12.1,206,56.33 2023-09-16 18:00,0.2,,44.7,47.0,66.00,5.2,11.9,233,18.79 2023-09-16 19:00,0.2,,44.7,46.0,68.00,4.0,9.1,236,1.20 2023-09-16 20:00,0.1,1,44.8,46.0,69.00,6.0,12.0,240,0.20 2023-09-16 21:00,0.1,,44.8,45.0,72.00,4.9,11.4,234,0.24 2023-09-16 22:00,0.1,1,44.8,45.0,72.00,3.2,8.0,237,0.30 2023-09-16 23:00,0.2,1,44.8,44.0,77.00,2.6,6.8,250,0.24 2023-09-17 00:00,0.0,0,44.8,43.0,83.00,4.0,8.2,333,0.17 2023-09-17 01:00,0.2,1,44.8,42.0,84.00,2.4,5.3,265,0.10 2023-09-17 02:00,0.2,,44.8,42.0,84.00,1.5,4.1,237,0.30 2023-09-17 03:00,0.2,,44.8,41.0,90.00,1.4,4.0,264,0.20 2023-09-17 04:00,0.2,,44.8,40.0,92.00,1.9,4.7,259,0.20 2023-09-17 05:00,0.2,,44.8,41.0,89.00,1.7,3.6,247,0.14 2023-09-17 06:00,0.1,2,44.8,40.0,93.00,2.1,4.1,236,3.42 2023-09-17 07:00,0.2,1,44.8,40.0,90.00,3.9,10.0,78,24.60 2023-09-17 08:00,0.2,1,44.8,40.0,98.00,3.2,9.3,108,71.01 2023-09-17 09:00,0.1,1,44.8,41.0,99.00,2.0,5.1,75,64.57 2023-09-17 10:00,0.2,1,44.8,40.0,100.00,3.2,6.0,100,72.95 2023-09-17 11:00,0.2,1,44.8,41.0,100.00,4.1,6.9,123,88.70 2023-09-17 12:00,0.2,0,44.8,41.0,100.00,5.3,8.6,125,107.40 2023-09-17 13:00,0.2,2,44.8,41.0,100.00,5.0,8.8,125,75.14 2023-09-17 14:00,0.2,0,44.9,40.0,100.00,3.8,7.1,137,57.72 2023-09-17 15:00,0.2,1,45.0,39.0,100.00,6.8,12.3,294,95.70 2023-09-17 16:00,0.2,1,45.0,39.0,87.00,6.2,11.7,273,72.19 2023-09-17 17:00,0.2,1,45.0,38.0,98.00,2.4,9.0,254,19.20 2023-09-17 18:00,0.2,1,45.0,38.0,89.00,2.5,9.0,250,11.67 2023-09-17 19:00,0.2,0,45.1,37.0,94.00,1.5,8.6,29,1.07 2023-09-17 20:00,0.2,1,45.1,37.0,88.00,3.3,9.3,145,0.00 2023-09-17 21:00,0.2,1,45.1,36.0,97.00,1.8,4.8,204,0.03 2023-09-17 22:00,0.2,1,45.1,36.0,96.00,2.0,2.8,252,0.00 2023-09-17 23:00,0.2,0,45.1,36.0,96.00,1.8,3.7,254,0.00 2023-09-18 00:00,0.0,0,45.1,36.0,93.00,2.1,3.4,246,0.00 2023-09-18 01:00,0.2,1,45.1,37.0,89.00,1.4,3.2,252,0.00 2023-09-18 02:00,0.2,1,45.1,36.0,91.00,2.2,3.6,262,0.00 2023-09-18 03:00,0.2,1,45.1,36.0,92.00,2.0,3.5,254,0.00 2023-09-18 04:00,0.2,1,45.1,36.0,89.00,0.7,2.5,258,0.00 2023-09-18 05:00,0.2,1,45.1,35.0,96.00,1.1,2.8,245,0.00 2023-09-18 06:00,0.2,2,45.2,35.0,97.00,1.6,3.1,269,1.30 2023-09-18 07:00,0.2,1,45.2,36.0,94.00,2.1,5.5,235,15.61 2023-09-18 08:00,0.2,1,45.2,37.0,94.00,1.4,4.1,144,46.10 2023-09-18 09:00,0.2,1,45.2,38.0,92.00,1.8,4.8,102,65.19 2023-09-18 10:00,0.2,0,45.1,38.0,91.00,2.0,4.0,85,78.01 2023-09-18 11:00,0.2,0,45.1,38.0,96.00,1.8,4.0,81,84.90 2023-09-18 12:00,0.2,0,45.2,38.0,93.00,2.7,4.9,102,107.90 2023-09-18 13:00,0.2,1,45.2,38.0,99.00,3.3,5.4,112,82.70 2023-09-18 14:00,0.2,1,45.2,38.0,99.00,4.3,7.2,129,90.20 2023-09-18 15:00,0.2,0,45.2,38.0,99.00,4.5,8.4,112,64.02 2023-09-18 16:00,0.2,1,45.2,39.0,100.00,4.5,8.6,115,146.40 2023-09-18 17:00,0.2,1,45.2,39.0,99.00,3.6,7.1,104,68.39 2023-09-18 18:00,0.2,1,45.2,38.0,99.00,3.9,9.6,98,18.42 2023-09-18 19:00,0.2,1,45.2,37.0,99.00,2.7,9.9,55,1.67 2023-09-18 20:00,0.2,2,45.2,39.0,81.00,2.9,11.5,241,0.07 2023-09-18 21:00,0.2,2,45.2,38.0,88.00,6.7,13.7,278,0.00 2023-09-18 22:00,0.2,1,45.2,40.0,81.00,3.0,8.8,254,0.00 2023-09-18 23:00,0.2,1,45.2,36.0,88.00,4.5,9.6,282,0.07 2023-09-19 00:00,0.0,0,45.2,38.0,83.00,4.8,10.2,264,0.00 2023-09-19 01:00,0.2,1,45.2,37.0,83.00,4.0,6.5,246,0.00 2023-09-19 02:00,0.2,1,45.2,34.0,85.00,4.6,7.3,260,0.00 2023-09-19 03:00,0.2,3,45.2,34.0,85.00,4.8,7.9,257,0.00 2023-09-19 04:00,0.1,1,45.2,34.0,83.00,5.0,7.3,256,0.00 2023-09-19 05:00,0.1,1,45.2,34.0,85.00,4.8,6.6,262,0.00 2023-09-19 06:00,0.1,1,45.2,33.0,85.00,4.6,7.7,261,4.68 2023-09-19 07:00,0.1,1,45.2,33.0,80.00,4.2,6.8,250,57.13 2023-09-19 08:00,0.1,1,45.2,35.0,80.00,3.9,5.6,245,149.70 2023-09-19 09:00,0.2,1,45.2,36.0,81.00,3.3,6.0,108,291.30 2023-09-19 10:00,0.2,1,45.2,42.0,69.00,3.0,6.7,85,387.80 2023-09-19 11:00,0.2,2,45.1,42.0,63.00,2.8,6.2,115,461.50 2023-09-19 12:00,0.2,3,45.1,44.0,65.00,3.0,10.0,127,429.80 2023-09-19 13:00,0.2,3,45.0,44.0,68.00,3.0,9.6,145,415.90 2023-09-19 14:00,0.2,,45.0,45.0,63.00,1.7,4.2,205,353.10 2023-09-19 15:00,0.2,2,45.0,46.0,56.00,2.7,4.8,225,240.50 2023-09-19 16:00,0.2,2,45.0,45.0,58.00,1.1,3.3,217,113.40 2023-09-19 17:00,0.2,1,45.0,44.0,60.00,2.5,4.9,251,46.45 2023-09-19 18:00,0.2,,45.0,43.0,68.00,2.4,6.3,262,15.32 2023-09-19 19:00,0.2,,45.1,41.0,72.00,4.5,9.0,248,0.94 2023-09-19 20:00,0.2,2,45.1,44.0,58.00,3.4,8.8,236,0.30 2023-09-19 21:00,0.2,3,45.1,41.0,66.00,2.7,6.3,250,0.14 2023-09-19 22:00,0.2,,45.1,41.0,69.00,2.5,4.9,246,0.07 2023-09-19 23:00,0.2,,45.1,44.0,54.00,2.4,5.1,264,0.10 2023-09-20 00:00,0.1,,45.1,43.0,55.00,2.3,7.3,233,0.07 2023-09-20 01:00,0.2,,45.1,43.0,52.00,2.7,6.8,239,0.03 2023-09-20 02:00,0.2,,45.1,42.0,54.00,2.1,6.6,257,0.00 2023-09-20 03:00,0.2,,45.2,42.0,52.00,2.3,7.8,253,0.07 2023-09-20 04:00,0.2,,45.1,42.0,61.00,4.2,13.4,39,0.27 2023-09-20 05:00,0.1,,45.1,35.0,90.00,3.3,6.7,269,0.13 2023-09-20 06:00,0.2,,45.2,33.0,98.00,3.4,6.5,263,0.31 2023-09-20 07:00,0.3,1,45.3,35.0,92.00,3.6,9.4,284,3.71 2023-09-20 08:00,0.3,2,45.4,35.0,92.00,3.8,7.6,281,16.49 2023-09-20 09:00,0.3,2,45.4,37.0,89.00,4.6,7.7,260,55.15 2023-09-20 10:00,0.3,3,45.4,37.0,89.00,5.5,13.0,243,107.40 2023-09-20 11:00,0.3,2,45.5,38.0,85.00,3.0,5.8,246,112.30 2023-09-20 12:00,0.2,2,45.5,40.0,77.00,1.9,4.5,250,172.00 2023-09-20 13:00,0.2,,45.5,41.0,79.00,1.6,4.0,332,173.60 2023-09-20 14:00,0.2,3,45.5,42.0,78.00,2.2,6.6,289,145.60 2023-09-20 15:00,0.2,3,45.5,41.0,78.00,2.2,5.2,301,91.80 2023-09-20 16:00,0.3,2,45.5,39.0,84.00,3.5,7.3,267,60.07 2023-09-20 17:00,0.3,3,45.6,38.0,91.00,2.9,6.1,272,13.92 2023-09-20 18:00,0.3,,45.6,37.0,95.00,3.3,6.3,254,5.76 2023-09-20 19:00,0.3,,45.7,37.0,93.00,2.0,5.4,212,0.37 2023-09-20 20:00,0.3,,45.8,35.0,95.00,2.4,6.6,250,0.17 2023-09-20 21:00,0.3,,45.9,36.0,96.00,1.2,4.1,190,0.00 2023-09-20 22:00,0.2,2,46.0,36.0,95.00,2.2,5.7,248,0.00 2023-09-20 23:00,0.2,2,46.0,37.0,91.00,2.2,4.2,256,0.00 2023-09-21 00:00,0.2,4,46.0,36.0,95.00,,,,