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 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 06 AM Tue Jul 08 2025 50F 52F / 21% SW 15 G 22 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Jul 08 2025 49F 51F / 13% SSW 18 G 28 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Jul 08 2025 51F 52F / 14% SSW 16 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Jul 08 2025 53F 53F / 6% SW 15 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Jul 08 2025 57F 54F / 5% SW 14 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Jul 08 2025 62F 55F / 3% SW 12 G 22 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Jul 08 2025 65F 56F / 0% SW 10 G 20 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Jul 08 2025 66F 57F / 1% WSW 10 G 20 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Jul 08 2025 68F 58F / 3% SW 10 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Jul 08 2025 69F 58F / 1% WSW 11 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Jul 08 2025 67F 59F / 3% SW 11 G 22 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Jul 08 2025 68F 59F / 1% SW 13 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Jul 08 2025 65F 60F / 0% SW 11 G 21 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Jul 08 2025 62F 58F / 6% SW 13 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Jul 08 2025 58F 56F / 2% WSW 13 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Jul 08 2025 55F 55F / 7% WSW 16 G 22 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Jul 08 2025 56F 55F / 9% SW 16 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Jul 08 2025 56F 55F / 9% WSW 15 G 22 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Jul 09 2025 55F 55F / 10% SW 16 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Jul 09 2025 54F 54F / 4% SW 18 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Jul 09 2025 53F 53F / 12% SW 19 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Jul 09 2025 51F 52F / 16% WSW 18 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Jul 09 2025 53F 52F / 7% WSW 18 G 27 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Jul 09 2025 52F 52F / 7% WSW 17 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Jul 09 2025 52F 52F / 7% WSW 18 G 28 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Jul 09 2025 50F 50F / 9% WSW 19 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Jul 09 2025 51F 51F / 13% WSW 19 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Jul 09 2025 54F 52F / 20% WSW 18 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Jul 09 2025 58F 53F / 17% SW 15 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Jul 09 2025 62F 54F / 18% SW 14 G 29 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Jul 09 2025 65F 56F / 14% SW 14 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Jul 09 2025 67F 56F / 18% SW 14 G 28 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Jul 09 2025 68F 57F / 19% SW 13 G 27 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Jul 09 2025 67F 57F / 25% SW 13 G 28 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Jul 09 2025 66F 57F / 25% SSW 14 G 27 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Jul 09 2025 66F 58F / 25% SW 14 G 25 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Jul 09 2025 60F 54F / 37% W 17 G 29 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Jul 09 2025 60F 56F / 40% SW 16 G 28 MPH 14500 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 38 08 PM Wed Jul 09 2025 57F 55F / 46% SW 16 G 29 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 39 09 PM Wed Jul 09 2025 54F 53F / 45% SW 19 G 31 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 40 10 PM Wed Jul 09 2025 54F 53F / 47% SW 22 G 34 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 41 11 PM Wed Jul 09 2025 54F 53F / 42% SSW 20 G 36 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 42 12 AM Thu Jul 10 2025 54F 53F / 38% SW 19 G 34 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 43 01 AM Thu Jul 10 2025 52F 51F / 48% SW 20 G 35 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 44 02 AM Thu Jul 10 2025 54F 52F / 43% SSW 22 G 37 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 45 03 AM Thu Jul 10 2025 53F 51F / 40% SSW 21 G 34 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 46 04 AM Thu Jul 10 2025 52F 50F / 44% SW 22 G 38 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 47 05 AM Thu Jul 10 2025 48F 48F / 57% W 20 G 28 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 48 06 AM Thu Jul 10 2025 47F 47F / 58% W 18 G 28 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0"