#------------------------------------------------- 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: 2025-07-14 17:00 to 2025-07-17 16:00 # # Data for the following site(s) are contained in this file: # # SNOTEL 2081: Nenana, 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 Depth Value None Instantaneous N/A Inches N/A SNWD Total snow depth # 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 # 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 # #------------------------------------------------------------------------------------------------------ # # Nenana (2081) # Alaska SNOTEL Site - 370 ft # Reporting Frequency: Hourly; Date Range: 2025-07-14 17:00 to 2025-07-17 16:00 # # As of: Jul 17, 2025, 4:35:24 PM GMT-08:00 # Date,Air Temperature Observed (degF),Precipitation Accumulation (in),Snow Depth (in),Solar Radiation Average (watt/m2),Wind Speed Maximum (mph),Wind Speed Average (mph),Wind Direction Average (degree) 2025-07-14 17:00,65.0,10.2,1,211.10,5.4,1.1,258 2025-07-14 18:00,65.0,10.2,1,189.80,5.3,1.2,232 2025-07-14 19:00,66.0,10.2,1,108.00,6.8,2.3,214 2025-07-14 20:00,65.0,10.2,1,48.84,6.9,3.0,214 2025-07-14 21:00,63.0,10.3,1,16.10,6.4,2.7,209 2025-07-14 22:00,62.0,10.4,,3.41,10.4,4.4,213 2025-07-14 23:00,62.0,10.4,1,0.36,10.4,4.7,216 2025-07-15 00:00,60.0,10.4,1,0.00,10.3,5.0,213 2025-07-15 01:00,60.0,10.4,1,0.00,9.9,4.3,213 2025-07-15 02:00,60.0,10.4,1,0.58,9.0,3.4,216 2025-07-15 03:00,59.0,10.5,1,5.37,7.3,3.1,203 2025-07-15 04:00,58.0,10.5,1,14.91,6.5,3.2,206 2025-07-15 05:00,59.0,10.5,1,47.51,9.0,3.9,212 2025-07-15 06:00,59.0,10.5,1,67.11,8.4,3.6,208 2025-07-15 07:00,59.0,10.5,1,62.91,9.7,4.3,214 2025-07-15 08:00,58.0,10.5,1,82.50,10.5,3.8,218 2025-07-15 09:00,58.0,10.5,1,110.70,7.1,2.8,222 2025-07-15 10:00,58.0,10.4,1,135.60,7.1,2.0,218 2025-07-15 11:00,58.0,10.4,1,147.80,7.4,1.9,225 2025-07-15 12:00,57.0,10.4,0,178.70,4.4,1.3,226 2025-07-15 13:00,57.0,10.4,1,153.90,4.7,1.3,227 2025-07-15 14:00,56.0,10.4,0,114.00,4.4,1.3,222 2025-07-15 15:00,55.0,10.4,1,107.40,3.0,0.6,218 2025-07-15 16:00,55.0,10.5,1,76.83,3.7,0.6,224 2025-07-15 17:00,53.0,10.5,1,66.49,2.8,0.4,216 2025-07-15 18:00,53.0,10.6,1,99.60,5.1,2.2,208 2025-07-15 19:00,53.0,10.6,1,81.00,5.5,2.6,207 2025-07-15 20:00,53.0,10.6,1,35.65,4.0,1.2,202 2025-07-15 21:00,52.0,10.6,1,11.86,3.2,0.6,214 2025-07-15 22:00,52.0,10.6,1,0.68,4.4,1.2,195 2025-07-15 23:00,51.0,10.7,1,0.00,4.0,1.2,196 2025-07-16 00:00,51.0,10.7,1,0.00,5.2,1.0,196 2025-07-16 01:00,51.0,10.7,1,0.00,2.9,0.2,180 2025-07-16 02:00,62.0,10.7,1,0.00,2.5,0.3,151 2025-07-16 03:00,59.0,10.7,1,0.15,2.3,0.3,29 2025-07-16 04:00,59.0,10.7,1,12.52,3.2,0.9,40 2025-07-16 05:00,59.0,10.7,1,34.11,4.4,0.9,22 2025-07-16 06:00,60.0,10.7,1,105.20,3.5,1.2,15 2025-07-16 07:00,57.0,10.7,1,180.90,4.7,1.2,32 2025-07-16 08:00,56.0,10.6,0,342.50,6.4,1.6,48 2025-07-16 09:00,59.0,10.6,1,497.60,5.9,1.8,44 2025-07-16 10:00,62.0,10.5,1,590.10,8.6,2.6,36 2025-07-16 11:00,65.0,10.4,1,586.50,8.3,2.4,38 2025-07-16 12:00,68.0,10.2,1,700.40,7.3,1.8,68 2025-07-16 13:00,69.0,10.1,1,705.00,9.1,2.4,37 2025-07-16 14:00,70.0,10.0,1,531.10,9.5,2.7,40 2025-07-16 15:00,70.0,10.0,1,604.80,6.4,1.9,32 2025-07-16 16:00,71.0,10.0,1,519.20,6.7,1.0,46 2025-07-16 17:00,73.0,10.0,0,375.90,6.4,1.4,27 2025-07-16 18:00,72.0,10.0,,324.80,9.4,3.2,28 2025-07-16 19:00,70.0,10.0,,167.80,8.9,3.6,24 2025-07-16 20:00,68.0,10.2,0,68.58,7.8,2.7,21 2025-07-16 21:00,67.0,10.3,0,30.60,5.7,2.3,21 2025-07-16 22:00,65.0,10.4,1,11.80,5.7,0.3,16 2025-07-16 23:00,60.0,10.5,0,0.25,0.6,0.0,2 2025-07-17 00:00,56.0,10.5,0,0.00,0.0,0.0,0 2025-07-17 01:00,53.0,10.6,0,0.00,0.0,0.0,0 2025-07-17 02:00,53.0,10.6,1,0.19,0.7,0.0,3 2025-07-17 03:00,54.0,10.6,1,2.32,0.0,0.0,0 2025-07-17 04:00,54.0,10.6,1,15.99,2.1,0.4,218 2025-07-17 05:00,54.0,10.6,1,100.10,2.5,0.6,196 2025-07-17 06:00,58.0,10.6,1,181.20,4.3,0.7,208 2025-07-17 07:00,62.0,10.6,1,329.10,7.0,2.2,222 2025-07-17 08:00,63.0,10.6,1,435.10,6.9,2.3,222 2025-07-17 09:00,66.0,10.5,0,533.10,6.4,2.2,222 2025-07-17 10:00,68.0,10.4,0,647.10,6.6,2.3,215 2025-07-17 11:00,70.0,10.2,0,585.90,6.5,1.9,203 2025-07-17 12:00,71.0,10.1,0,357.20,4.1,1.0,16 2025-07-17 13:00,69.0,10.1,0,345.70,4.6,0.7,52 2025-07-17 14:00,71.0,10.2,0,,,,