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 06Z 23-Jul-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 12 AM Wed Jul 23 2025 50F 48F / 49% SSW 14 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Wed Jul 23 2025 49F 48F / 40% SSW 14 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Wed Jul 23 2025 49F 47F / 35% SSW 15 G 24 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Wed Jul 23 2025 48F 47F / 32% SSW 14 G 24 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Wed Jul 23 2025 48F 47F / 24% SW 17 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Wed Jul 23 2025 48F 47F / 29% SW 17 G 29 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Wed Jul 23 2025 47F 46F / 27% SW 17 G 28 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Wed Jul 23 2025 47F 46F / 37% WSW 15 G 26 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Wed Jul 23 2025 48F 46F / 36% WSW 15 G 22 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Wed Jul 23 2025 49F 47F / 36% WSW 15 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Wed Jul 23 2025 52F 47F / 28% WSW 12 G 20 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Wed Jul 23 2025 57F 49F / 27% WSW 9 G 19 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Wed Jul 23 2025 60F 51F / 25% WSW 10 G 17 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Wed Jul 23 2025 62F 52F / 24% SW 10 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Wed Jul 23 2025 62F 52F / 24% WSW 8 G 18 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Wed Jul 23 2025 63F 53F / 20% WSW 9 G 18 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Wed Jul 23 2025 64F 54F / 21% WSW 9 G 17 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Wed Jul 23 2025 64F 54F / 19% SW 10 G 19 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Wed Jul 23 2025 61F 54F / 16% SW 11 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Wed Jul 23 2025 58F 53F / 18% SW 13 G 20 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Wed Jul 23 2025 54F 51F / 17% SW 13 G 20 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Wed Jul 23 2025 51F 50F / 22% WSW 12 G 18 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Wed Jul 23 2025 50F 49F / 31% WSW 12 G 16 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Wed Jul 23 2025 50F 49F / 34% WSW 12 G 16 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Thu Jul 24 2025 50F 49F / 34% WSW 13 G 19 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Thu Jul 24 2025 50F 48F / 22% SW 14 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Thu Jul 24 2025 48F 48F / 28% SW 14 G 19 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Thu Jul 24 2025 48F 47F / 29% WSW 13 G 18 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Thu Jul 24 2025 48F 47F / 16% WSW 15 G 24 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Thu Jul 24 2025 48F 47F / 17% SW 15 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Thu Jul 24 2025 46F 46F / 15% SW 14 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Thu Jul 24 2025 46F 44F / 26% SW 15 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Thu Jul 24 2025 47F 45F / 22% SSW 16 G 24 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Thu Jul 24 2025 48F 47F / 26% SW 12 G 17 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Thu Jul 24 2025 50F 46F / 21% S 11 G 20 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Thu Jul 24 2025 52F 46F / 26% S 8 G 22 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Thu Jul 24 2025 58F 50F / 27% S 10 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Thu Jul 24 2025 62F 55F / 17% SSW 10 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Thu Jul 24 2025 62F 55F / 13% SSW 9 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Thu Jul 24 2025 63F 56F / 17% SW 10 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Thu Jul 24 2025 65F 56F / 18% SW 10 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Thu Jul 24 2025 65F 56F / 14% SW 12 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Thu Jul 24 2025 62F 56F / 9% SW 13 G 21 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Thu Jul 24 2025 59F 56F / 7% WSW 12 G 20 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Thu Jul 24 2025 56F 54F / 11% WSW 13 G 20 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Thu Jul 24 2025 52F 52F / 10% WSW 13 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Thu Jul 24 2025 51F 51F / 3% SW 14 G 24 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Thu Jul 24 2025 50F 50F / 5% WSW 14 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Fri Jul 25 2025 50F 50F / 6% WSW 13 G 22 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"