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 22-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 22 2025 47F 46F / 44% SW 23 G 37 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Jul 22 2025 46F 45F / 37% SW 18 G 28 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Jul 22 2025 48F 46F / 40% SW 20 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Jul 22 2025 48F 46F / 39% SW 18 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Jul 22 2025 51F 46F / 38% SSW 16 G 27 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Jul 22 2025 56F 48F / 42% SW 15 G 27 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Jul 22 2025 58F 49F / 42% SW 14 G 27 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Jul 22 2025 59F 50F / 34% SW 13 G 27 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Jul 22 2025 62F 51F / 33% SW 12 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Jul 22 2025 62F 52F / 31% SW 13 G 25 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Jul 22 2025 62F 53F / 26% SW 11 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Jul 22 2025 62F 53F / 22% SW 13 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Jul 22 2025 59F 52F / 26% WSW 10 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Jul 22 2025 58F 52F / 39% SW 11 G 18 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Jul 22 2025 54F 51F / 31% SW 12 G 19 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Jul 22 2025 52F 49F / 27% SW 14 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Jul 22 2025 51F 49F / 26% SW 13 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Jul 22 2025 51F 48F / 34% SW 15 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Jul 23 2025 50F 48F / 35% SSW 14 G 24 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Jul 23 2025 49F 47F / 33% SSW 15 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Jul 23 2025 48F 47F / 34% SSW 16 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Jul 23 2025 48F 47F / 36% SSW 16 G 29 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Jul 23 2025 48F 47F / 29% SW 19 G 32 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Jul 23 2025 47F 46F / 31% WSW 20 G 32 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Jul 23 2025 46F 46F / 33% WSW 19 G 29 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Jul 23 2025 46F 46F / 33% WSW 17 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Jul 23 2025 48F 46F / 37% WSW 17 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Jul 23 2025 50F 47F / 42% WSW 16 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Jul 23 2025 53F 48F / 38% W 12 G 20 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Jul 23 2025 57F 49F / 34% WSW 10 G 19 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Jul 23 2025 60F 51F / 30% WSW 8 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Jul 23 2025 61F 52F / 28% SW 8 G 18 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Jul 23 2025 64F 53F / 24% SW 8 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Jul 23 2025 64F 53F / 25% WSW 8 G 18 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Jul 23 2025 64F 54F / 24% WSW 9 G 18 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Jul 23 2025 63F 54F / 24% SW 12 G 21 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Jul 23 2025 60F 54F / 22% WSW 11 G 19 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Jul 23 2025 60F 56F / 29% WSW 12 G 20 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Wed Jul 23 2025 56F 54F / 35% WSW 11 G 16 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Wed Jul 23 2025 52F 51F / 44% W 10 G 15 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Wed Jul 23 2025 51F 51F / 47% W 12 G 16 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Wed Jul 23 2025 50F 50F / 38% SW 9 G 14 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Thu Jul 24 2025 50F 50F / 34% SW 14 G 19 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Thu Jul 24 2025 50F 51F / 25% WSW 13 G 20 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Thu Jul 24 2025 51F 50F / 26% WSW 14 G 20 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Thu Jul 24 2025 49F 49F / 31% SW 13 G 17 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Thu Jul 24 2025 48F 48F / 28% WSW 15 G 19 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Thu Jul 24 2025 48F 50F / 14% WSW 14 G 18 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Thu Jul 24 2025 47F 48F / 13% WSW 15 G 18 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"