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 17-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 Thu Jul 17 2025 53F 51F / 38% W 12 G 15 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Thu Jul 17 2025 51F 50F / 38% W 9 G 14 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Thu Jul 17 2025 51F 50F / 38% SSW 11 G 17 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Thu Jul 17 2025 51F 50F / 35% SSW 14 G 24 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Thu Jul 17 2025 50F 49F / 31% SSW 17 G 27 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Thu Jul 17 2025 50F 48F / 41% SSW 20 G 34 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Thu Jul 17 2025 49F 49F / 39% SSW 17 G 26 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Thu Jul 17 2025 49F 49F / 48% SSW 16 G 26 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Thu Jul 17 2025 50F 50F / 44% SSW 17 G 27 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Thu Jul 17 2025 52F 51F / 44% SSW 16 G 23 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Thu Jul 17 2025 56F 51F / 35% SW 12 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Thu Jul 17 2025 61F 53F / 33% SW 11 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Thu Jul 17 2025 64F 55F / 30% WSW 11 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Thu Jul 17 2025 66F 56F / 25% WSW 11 G 19 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Thu Jul 17 2025 67F 56F / 23% WSW 11 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Thu Jul 17 2025 68F 57F / 23% W 11 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Thu Jul 17 2025 67F 56F / 22% WNW 12 G 22 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Thu Jul 17 2025 60F 52F / 37% W 21 G 38 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Thu Jul 17 2025 59F 54F / 32% W 10 G 14 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Thu Jul 17 2025 60F 56F / 28% W 11 G 15 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Thu Jul 17 2025 58F 54F / 31% W 12 G 17 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Thu Jul 17 2025 53F 52F / 39% WSW 13 G 19 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Thu Jul 17 2025 53F 52F / 31% WSW 13 G 18 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Thu Jul 17 2025 53F 52F / 32% SW 14 G 23 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Fri Jul 18 2025 51F 50F / 42% SSW 16 G 28 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Fri Jul 18 2025 51F 50F / 35% SSW 15 G 26 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Fri Jul 18 2025 50F 50F / 40% SSW 15 G 22 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Fri Jul 18 2025 50F 49F / 43% SSW 16 G 23 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Fri Jul 18 2025 50F 49F / 50% SSW 16 G 23 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Fri Jul 18 2025 50F 49F / 51% SSW 17 G 23 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Fri Jul 18 2025 50F 49F / 50% SSW 14 G 21 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Fri Jul 18 2025 50F 49F / 46% WSW 12 G 18 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Fri Jul 18 2025 51F 49F / 43% WSW 14 G 21 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Fri Jul 18 2025 52F 49F / 60% WSW 12 G 17 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Fri Jul 18 2025 52F 48F / 60% SSW 11 G 19 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Fri Jul 18 2025 54F 48F / 54% S 11 G 22 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Fri Jul 18 2025 54F 49F / 62% SSW 7 G 15 MPH 14100 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 37 01 PM Fri Jul 18 2025 61F 54F / 38% S 9 G 20 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 38 02 PM Fri Jul 18 2025 58F 53F / 47% S 8 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 39 03 PM Fri Jul 18 2025 62F 55F / 40% WSW 9 G 20 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 40 04 PM Fri Jul 18 2025 64F 57F / 43% SW 8 G 18 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 41 05 PM Fri Jul 18 2025 65F 57F / 44% WSW 8 G 16 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 42 06 PM Fri Jul 18 2025 62F 56F / 45% W 13 G 20 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 43 07 PM Fri Jul 18 2025 60F 56F / 51% W 14 G 21 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 44 08 PM Fri Jul 18 2025 55F 53F / 60% W 14 G 22 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 45 09 PM Fri Jul 18 2025 52F 51F / 64% WSW 12 G 19 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 46 10 PM Fri Jul 18 2025 49F 47F / 98% WNW 16 G 25 MPH 14300 FT 0:1 / -% 0.03" / 0.0" 0.04" / 0.0" 47 11 PM Fri Jul 18 2025 46F 46F / 100% SSE 15 G 23 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 48 12 AM Sat Jul 19 2025 47F 46F / 80% S 13 G 18 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0"