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 18Z 08-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 PM Tue Jul 08 2025 65F 57F / 1% S 7 G 17 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue Jul 08 2025 66F 57F / 2% SSW 8 G 19 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue Jul 08 2025 69F 58F / 2% S 9 G 21 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue Jul 08 2025 69F 59F / 9% SSW 9 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue Jul 08 2025 68F 59F / 9% SW 10 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue Jul 08 2025 68F 60F / 2% SW 10 G 20 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue Jul 08 2025 65F 60F / 2% SW 12 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue Jul 08 2025 62F 59F / 5% SW 12 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue Jul 08 2025 58F 56F / 8% WSW 14 G 21 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue Jul 08 2025 56F 55F / 15% SW 17 G 25 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue Jul 08 2025 56F 55F / 11% WSW 16 G 23 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue Jul 08 2025 55F 55F / 4% SW 17 G 25 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed Jul 09 2025 55F 55F / 9% SW 17 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed Jul 09 2025 54F 54F / 5% WSW 22 G 37 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed Jul 09 2025 53F 53F / 11% WSW 20 G 30 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed Jul 09 2025 54F 53F / 12% WSW 19 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed Jul 09 2025 53F 52F / 15% WSW 18 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed Jul 09 2025 52F 52F / 19% WSW 18 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed Jul 09 2025 51F 51F / 22% WSW 18 G 29 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed Jul 09 2025 49F 50F / 22% WSW 19 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed Jul 09 2025 51F 51F / 26% WSW 18 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed Jul 09 2025 53F 52F / 27% WSW 18 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed Jul 09 2025 57F 53F / 20% WSW 16 G 28 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed Jul 09 2025 62F 54F / 21% SW 14 G 28 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed Jul 09 2025 65F 56F / 22% SW 14 G 29 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed Jul 09 2025 65F 56F / 25% SW 16 G 29 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed Jul 09 2025 66F 56F / 19% SW 14 G 31 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed Jul 09 2025 67F 57F / 30% SW 14 G 28 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed Jul 09 2025 66F 57F / 24% SSW 13 G 28 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed Jul 09 2025 66F 57F / 28% SW 13 G 25 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed Jul 09 2025 64F 57F / 29% SW 15 G 27 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed Jul 09 2025 62F 57F / 32% SW 18 G 32 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed Jul 09 2025 58F 54F / 36% SW 19 G 32 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Wed Jul 09 2025 56F 54F / 27% SW 19 G 33 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Wed Jul 09 2025 56F 53F / 22% SW 20 G 35 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Wed Jul 09 2025 54F 52F / 29% WSW 19 G 32 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Thu Jul 10 2025 53F 50F / 41% WSW 20 G 30 MPH 13600 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 37 01 AM Thu Jul 10 2025 53F 52F / 35% W 23 G 37 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 38 02 AM Thu Jul 10 2025 52F 52F / 40% WSW 19 G 29 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 39 03 AM Thu Jul 10 2025 50F 49F / 47% WSW 21 G 34 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 40 04 AM Thu Jul 10 2025 48F 48F / 64% WNW 21 G 31 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 41 05 AM Thu Jul 10 2025 47F 47F / 58% W 20 G 28 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 42 06 AM Thu Jul 10 2025 47F 46F / 61% W 21 G 30 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 43 07 AM Thu Jul 10 2025 47F 46F / 68% W 20 G 32 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 44 08 AM Thu Jul 10 2025 48F 47F / 67% WNW 19 G 31 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 45 09 AM Thu Jul 10 2025 49F 48F / 67% W 19 G 28 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 46 10 AM Thu Jul 10 2025 51F 48F / 63% W 14 G 22 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 47 11 AM Thu Jul 10 2025 56F 48F / 52% WNW 12 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 48 12 PM Thu Jul 10 2025 59F 50F / 50% WNW 9 G 19 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0"