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 16-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 06 AM Wed Jul 16 2025 48F 48F / 45% WSW 17 G 24 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jul 16 2025 48F 48F / 51% WSW 18 G 27 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jul 16 2025 51F 48F / 53% WSW 17 G 25 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jul 16 2025 52F 49F / 42% WSW 16 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jul 16 2025 55F 50F / 36% SW 13 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jul 16 2025 60F 51F / 39% WSW 12 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jul 16 2025 63F 53F / 34% WSW 12 G 22 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jul 16 2025 64F 54F / 33% W 15 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jul 16 2025 66F 55F / 32% WSW 14 G 26 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jul 16 2025 67F 56F / 31% W 12 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jul 16 2025 65F 56F / 27% W 15 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jul 16 2025 65F 55F / 29% WNW 15 G 22 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jul 16 2025 63F 56F / 16% WNW 16 G 25 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jul 16 2025 61F 55F / 20% WNW 16 G 24 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jul 16 2025 57F 53F / 23% W 17 G 24 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jul 16 2025 54F 52F / 24% W 17 G 23 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jul 16 2025 53F 52F / 23% W 16 G 24 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jul 16 2025 53F 51F / 21% WSW 14 G 19 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jul 17 2025 52F 51F / 34% SSW 15 G 25 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jul 17 2025 51F 50F / 31% SSW 15 G 24 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jul 17 2025 51F 50F / 35% SSW 16 G 26 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jul 17 2025 51F 50F / 37% SW 16 G 25 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jul 17 2025 51F 49F / 35% SSW 17 G 29 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jul 17 2025 50F 49F / 38% SSW 21 G 33 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jul 17 2025 49F 49F / 46% SSW 21 G 32 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jul 17 2025 49F 49F / 43% SSW 19 G 28 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jul 17 2025 50F 49F / 40% SW 19 G 29 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jul 17 2025 52F 50F / 40% WSW 18 G 26 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jul 17 2025 56F 51F / 33% WSW 14 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jul 17 2025 60F 52F / 28% WSW 12 G 22 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jul 17 2025 62F 54F / 28% WSW 11 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jul 17 2025 64F 55F / 30% WSW 11 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jul 17 2025 66F 55F / 28% W 13 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jul 17 2025 66F 55F / 31% W 12 G 23 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Jul 17 2025 65F 55F / 34% WNW 12 G 22 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Jul 17 2025 65F 56F / 35% W 11 G 17 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Jul 17 2025 62F 56F / 30% W 13 G 20 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Jul 17 2025 61F 57F / 28% WSW 15 G 20 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Jul 17 2025 57F 55F / 26% WNW 12 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Jul 17 2025 55F 55F / 25% WSW 10 G 15 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Jul 17 2025 54F 54F / 30% W 12 G 16 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Jul 17 2025 53F 51F / 45% SSE 15 G 27 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Jul 18 2025 51F 50F / 53% SSW 15 G 27 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Jul 18 2025 49F 50F / 54% S 11 G 22 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Jul 18 2025 50F 49F / 49% S 14 G 23 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Jul 18 2025 49F 49F / 47% S 11 G 18 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Jul 18 2025 50F 49F / 44% SSW 11 G 18 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Jul 18 2025 49F 50F / 38% SW 12 G 16 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Jul 18 2025 49F 49F / 34% SW 13 G 16 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"