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 00Z 23-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 PM Tue Jul 22 2025 60F 54F / 35% SW 10 G 18 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Jul 22 2025 58F 53F / 30% SW 10 G 19 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Jul 22 2025 54F 51F / 38% SW 11 G 18 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Jul 22 2025 52F 50F / 34% SSW 10 G 15 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Jul 22 2025 51F 49F / 27% S 12 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Jul 22 2025 50F 49F / 34% SW 11 G 18 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Jul 23 2025 50F 49F / 39% SW 13 G 21 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Jul 23 2025 49F 48F / 39% SSW 14 G 24 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Jul 23 2025 49F 47F / 41% SSW 17 G 28 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Jul 23 2025 48F 47F / 33% SW 19 G 29 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Jul 23 2025 47F 47F / 26% SW 19 G 33 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Jul 23 2025 47F 46F / 31% WSW 20 G 33 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Jul 23 2025 46F 46F / 30% WSW 19 G 30 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Jul 23 2025 46F 45F / 32% WSW 18 G 28 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Jul 23 2025 48F 46F / 26% WSW 18 G 27 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Jul 23 2025 50F 46F / 25% WSW 16 G 26 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Jul 23 2025 52F 47F / 28% WSW 11 G 19 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Jul 23 2025 56F 49F / 27% WSW 9 G 17 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Jul 23 2025 59F 50F / 30% SW 8 G 16 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Jul 23 2025 61F 51F / 31% SSW 8 G 18 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Jul 23 2025 63F 53F / 32% SW 9 G 19 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Jul 23 2025 63F 53F / 26% SW 9 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Jul 23 2025 63F 53F / 25% SW 10 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Jul 23 2025 64F 54F / 23% SW 11 G 21 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Jul 23 2025 60F 55F / 19% SW 11 G 21 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Jul 23 2025 58F 54F / 16% SW 13 G 22 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Jul 23 2025 55F 51F / 14% WSW 15 G 22 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Jul 23 2025 51F 49F / 51% W 10 G 15 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Jul 23 2025 50F 49F / 30% WSW 11 G 15 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Jul 23 2025 50F 49F / 30% WSW 12 G 17 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Jul 24 2025 49F 48F / 23% WSW 13 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Jul 24 2025 49F 49F / 22% WSW 14 G 22 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Jul 24 2025 48F 48F / 31% WSW 14 G 21 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Jul 24 2025 47F 47F / 29% SW 13 G 16 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Jul 24 2025 47F 46F / 21% WSW 10 G 13 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Jul 24 2025 47F 46F / 17% WSW 14 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Jul 24 2025 47F 47F / 16% WSW 13 G 19 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Jul 24 2025 47F 48F / 19% SW 14 G 18 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu Jul 24 2025 50F 49F / 26% SSW 13 G 22 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu Jul 24 2025 51F 51F / 10% SW 14 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu Jul 24 2025 54F 50F / 16% SSW 12 G 21 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu Jul 24 2025 55F 50F / 9% S 9 G 20 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu Jul 24 2025 61F 53F / 8% S 9 G 19 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu Jul 24 2025 61F 54F / 4% S 9 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu Jul 24 2025 61F 54F / 14% S 9 G 22 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu Jul 24 2025 62F 55F / 10% SSW 10 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu Jul 24 2025 63F 55F / 10% SW 10 G 21 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu Jul 24 2025 63F 56F / 12% SW 11 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu Jul 24 2025 62F 56F / 12% WSW 13 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"