ALTA/LITTLE COTTONWOOD CANYON HRRR-DERIVED FORECAST GUIDANCE *************************************************************** * THIS IS AN EXPERIMENTAL, AUTOMATED, AND UNOFFICIAL FORECAST * *************************************************************** CREATED/MAINTAINED BY THE STEENBURGH GROUP DEPARTMENT OF ATMOSPHERIC SCIENCES UNIVERSITY OF UTAH Contact: jim.steenburgh@utah.edu WETBULBZERO, 1H QPF, ACCUM QPF DIRECTLY FROM HRRR COLLINS SNOW RATIO/H2O, MT BALDY T/RH, MT BALDY WIND, 1H SNOW, and ACCUM SNOW based on machine learning including UU RF SLR algorithm Based on 12Z 11-Jun-2025 intialized HRRR FORECAST HOURS 0-48 FHR VALID MOUNTAIN TIME COLLINS T MT BALDY T/RH MT BALDY WIND WETBULBZERO SLR/H2O 1H QPF / 1H SNOW / ACCUM QPF / ACCUM SNOW 0 06 AM Wed Jun 11 2025 46F 47F / 44% WSW 16 G 24 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jun 11 2025 47F 47F / 39% SW 17 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jun 11 2025 49F 47F / 43% SW 18 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jun 11 2025 50F 48F / 46% SW 16 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jun 11 2025 53F 48F / 46% SW 15 G 26 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jun 11 2025 58F 50F / 46% SSW 15 G 27 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jun 11 2025 62F 52F / 36% SSW 16 G 29 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jun 11 2025 63F 53F / 31% SSW 15 G 28 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jun 11 2025 66F 55F / 27% S 12 G 28 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jun 11 2025 67F 55F / 19% SW 19 G 38 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jun 11 2025 65F 55F / 17% SW 19 G 36 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jun 11 2025 66F 57F / 11% WSW 21 G 36 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jun 11 2025 65F 57F / 8% SW 19 G 36 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jun 11 2025 63F 56F / 4% SW 21 G 38 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jun 11 2025 58F 55F / 9% SW 23 G 41 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jun 11 2025 54F 52F / 39% W 14 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jun 11 2025 53F 51F / 41% W 13 G 21 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jun 11 2025 52F 51F / 37% WSW 10 G 13 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jun 12 2025 50F 49F / 49% SW 10 G 16 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jun 12 2025 48F 48F / 67% SSE 14 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jun 12 2025 49F 47F / 64% SSE 14 G 23 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jun 12 2025 48F 47F / 51% SW 13 G 18 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jun 12 2025 49F 48F / 44% WSW 14 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jun 12 2025 48F 47F / 53% WSW 14 G 19 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jun 12 2025 46F 46F / 59% WSW 15 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jun 12 2025 46F 46F / 50% SW 14 G 20 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jun 12 2025 48F 47F / 50% SW 14 G 21 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jun 12 2025 50F 48F / 46% SSW 15 G 22 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jun 12 2025 53F 48F / 40% SSW 12 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jun 12 2025 57F 49F / 27% SSW 13 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jun 12 2025 61F 52F / 21% SSW 12 G 26 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jun 12 2025 63F 52F / 22% SSW 14 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jun 12 2025 65F 53F / 21% SSW 13 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jun 12 2025 65F 54F / 16% SSW 12 G 27 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Jun 12 2025 65F 54F / 14% SSW 13 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Jun 12 2025 65F 55F / 18% SSW 12 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Jun 12 2025 62F 55F / 12% SW 13 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Jun 12 2025 63F 58F / 9% SW 17 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Jun 12 2025 59F 57F / 12% SW 18 G 32 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Jun 12 2025 55F 53F / 14% SSW 19 G 33 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Jun 12 2025 54F 53F / 17% SSW 22 G 37 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Jun 12 2025 52F 51F / 21% SW 19 G 34 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Jun 13 2025 50F 49F / 30% WSW 16 G 25 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Jun 13 2025 49F 49F / 37% WSW 14 G 20 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Jun 13 2025 50F 48F / 39% WNW 14 G 25 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Jun 13 2025 49F 48F / 34% W 15 G 27 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Jun 13 2025 48F 47F / 40% W 17 G 26 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Jun 13 2025 48F 48F / 33% W 18 G 26 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Jun 13 2025 47F 47F / 24% WSW 16 G 22 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"