Title --- SOS_Weather_Blog Authors --- Daniel Hogan Lead and corresponding author Graduate student 925-588-4507 Civil and Environmental Engineering University of Washington 201 More Hall, Box 352700 Seattle, WA 98195-2700 https://orcid.org/0009-0008-0553-6783 dlhogan@uw.edu Eli Schwat https://orcid.org/0000-0003-1212-5735 elilouis@uw.edu Civil and Environmental Engineering, University of Washington Jessica Lundquist https://orcid.org/0000-0003-2193-5633 jdlund@uw.edu Civil and Environmental Engineering, University of Washington Ethan Gutmann https://orcid.org/0000-0003-4077-3430 gutmann@ucar.edu National Center for Atmospheric Research: Boulder, CO Julie Vano jvano@agci.org Aspen Global Change Institute Dataset Description --- **Introduction** This dataset contains daily descriptions and discussion of local, mesoscale, and synoptic weather systems impacting Gothic, CO, the East River valley, and western Colorado throughout Fall, Winter and Spring 2022-2023. Daily descriptions and discsussion are organized by weeks 1 (beginning October 22, 2022) to week 32 (ending June 1, 2023) along with daily updates on instrument performance and instrument issues at the Kettle Ponds site. Information contained in the blog was obtained from a variety of different resources including output from the SAIL project obtained through the ARM data discovery portal (ARM Research Facility, n.d.), Alicia M. Bentley's Real-Time GFS Maps (Alicia M. Bentley's Real-Time GFS Maps, n.d.), Gothic Weather (Gothic Weather - Home, n.d.), Pivotal Weather (Pivotal Weather, n.d.), SOS Field Project (SOS Field Project - EOL/ISFS Home - SOS Field Project - EOL/ISFS - Wiki.Ucar.Edu, n.d.), Tropical Tidbits (Cowan, n.d.), GOES-18 imagery through the RAAMB slider (Micke, 2018) the Grand Junction NWS office (US Department of Commerce, n.d.-a, n.d.-b). **Data version number and date** Version 0, 2023-09-18 **Data Status (Preliminary or Final)** Final **Time period covered by the data** 2022-10-22 to 2023-06-01 **Physical location** Latitude/Longitude: 38.958330, -106.989055 Elevation: 2892 meters **Data Frequency** Approximately every 24 hours. Instrument Description --- Figures using data from a variety of instruments within the SOS and SAIL campaigns are displayed in this blog; however, details of each instrument referenced within will not be discussed directly herein. For details on each instrument within the SOS suite, please see the following documentation https://www.eol.ucar.edu/content/isfs-guides. For SAIL specific instruments (doppler LiDAR and radiosonde), please see insturment specifications here (https://www.arm.gov/capabilities/instruments/sonde) and here (https://www.arm.gov/capabilities/instruments/dl). Data Collection and Processing --- Daily observations of weather conditions within Gothic and at the Kettle Ponds site were made in-person by either billy barr (Gothic Weather, n.d.) or Daniel Hogan. Synoptic discussion was adapted from the NWS Grand Junction forecast discussion. Model output shown within the blog originated from several models including the Global Forcasting System (GFS), European Center for Medium-Range Weather Forecasting (ECMWF), High-Resolution Rapid Refresh (HRRR), North American Mesoscale Forecast System (NAM) obtained through Tropical Tidbits, Pivotal Weather and Alicia Benley's GFS Maps. Model output for atmospheric variables was downloaded directly from these resources. GOES-18 imagery was obtained through the RAAMB slider for days of interest (https://rammb-slider.cira.colostate.edu/?sat=goes-18&sec=full_disk&x=10848&y=10848&z=0&angle=0&im=12&ts=1&st=0&et=0&speed=130&motion=loop&p%5B0%5D=geocolor&opacity%5B0%5D=1&pause=0&slider=-1&hide_controls=0&mouse_draw=0&follow_feature=0&follow_hide=0&s=rammb-slider&draw_color=FFD700&draw_width=6). Data Format --- Files are organized in two ways: PDFs of each week consisting of daily discussions in the "WxBlogPDF" folder and HTML files with associated image folders in the "WxBlogHTML" folder. Within the "WxBlogHTML" folder, there are weekly folders which contain each week's HTML file and an "images" folder with all images associated with the week's HTML file. This includes GIFs and PNG images; however these GIFs are only preserved in the HTML files and will be static images in the WxBlogPDF files. Data Remarks --- Daily discussion was used to document incoming storms, general atmospheric conditions, and the impact each had on weather and instrument recording within the East River valley. Discussions including model output were not back-corrected for the observed systems, but were used to synthesize the general outlook for weather systems that may impact the central mountains of western Colorado. This information is intended to provide surface-level insights into different storm events seen throughout the SOS campaign. References --- Alicia M. Bentley's Real-time GFS Maps. (n.d.). Retrieved September 18, 2023, from https://www.atmos.albany.edu/student/abentley/realtime.html ARM Research Facility. (n.d.). Retrieved September 18, 2023, from https://www.arm.gov/research/campaigns/amf2021sail Cowan, L. (n.d.). Forecast Models | Tropical Tidbits. Retrieved September 18, 2023, from https://www.tropicaltidbits.com/analysis/models/ Gothic Weather-Home. (n.d.). Retrieved September 18, 2023, from https://www.gothicwx.org/ Micke, K. (2018). Every Pixel of GOES-17 Imagery at Your Fingertips. Bulletin of the American Meteorological Society, 99(11), 2217-2219. https://doi.org/10.1175/BAMS-D-17-0272.1\ Pivotal Weather. (n.d.). Pivotal Weather. Retrieved September 18, 2023, from https://home.pivotalweather.com SOS Field Project-EOL/ISFS Home-SOS Field Project-EOL/ISFS - wiki.ucar.edu. (n.d.). Retrieved September 18, 2023, from https://wiki.ucar.edu/pages/viewpage.action?pageId=488672281 US Department of Commerce, N. (n.d.-a). National Weather Service. NOAA's National Weather Service. Retrieved September 18, 2023, from https://www.weather.gov/ US Department of Commerce, N. (n.d.-b). Text Products for AFD Issued by GJT. NOAA's National Weather Service. Retrieved September 18, 2023, from https://forecast.weather.gov/product.php?site=GJT&issuedby=GJT&product=AFD&format=ci&version=1&glossary=1 Appendix --- GCMD science keywords: EARTH SCIENCE>ATMOSPHERE>WEATHER EVENTS>SNOW STORMS EARTH SCIENCE>ATMOSPHERE>WEATHER EVENTS>WEATHER/CLIMATE ADVISORIES>Weather Forecast