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 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 AM Wed Jul 23 2025 47F 46F / 54% SSW 16 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jul 23 2025 47F 46F / 45% SW 15 G 25 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jul 23 2025 49F 46F / 42% SW 15 G 23 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jul 23 2025 50F 47F / 39% WSW 14 G 24 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jul 23 2025 52F 48F / 39% WSW 11 G 18 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jul 23 2025 57F 49F / 38% SW 8 G 15 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jul 23 2025 60F 51F / 32% SW 7 G 15 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jul 23 2025 61F 52F / 25% SW 7 G 14 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jul 23 2025 64F 53F / 22% SW 8 G 17 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jul 23 2025 65F 54F / 23% WSW 11 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jul 23 2025 64F 55F / 24% WSW 12 G 21 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jul 23 2025 64F 55F / 27% WSW 11 G 18 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jul 23 2025 61F 54F / 34% W 9 G 17 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jul 23 2025 58F 53F / 40% WNW 12 G 18 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jul 23 2025 54F 51F / 38% WNW 10 G 16 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jul 23 2025 51F 49F / 46% W 10 G 14 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jul 23 2025 51F 49F / 44% W 9 G 13 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jul 23 2025 50F 49F / 48% W 10 G 14 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jul 24 2025 50F 49F / 46% WSW 11 G 18 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jul 24 2025 50F 49F / 42% WSW 14 G 21 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jul 24 2025 49F 48F / 34% WSW 14 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jul 24 2025 48F 47F / 40% WSW 11 G 15 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jul 24 2025 48F 47F / 40% W 12 G 17 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jul 24 2025 48F 46F / 40% WSW 11 G 14 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jul 24 2025 47F 46F / 29% SSW 14 G 20 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jul 24 2025 47F 46F / 19% SW 14 G 19 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jul 24 2025 49F 47F / 24% SW 14 G 19 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jul 24 2025 48F 46F / 28% SSW 14 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jul 24 2025 52F 47F / 26% SW 10 G 20 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jul 24 2025 56F 48F / 22% SSW 8 G 16 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jul 24 2025 58F 50F / 18% SSE 6 G 17 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jul 24 2025 61F 52F / 18% SW 7 G 15 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jul 24 2025 62F 52F / 18% SW 8 G 17 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jul 24 2025 63F 53F / 20% SW 8 G 18 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Jul 24 2025 62F 54F / 19% SSW 9 G 20 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Jul 24 2025 63F 54F / 18% SW 9 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Jul 24 2025 60F 54F / 14% SW 11 G 20 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Jul 24 2025 60F 56F / 12% WSW 14 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Jul 24 2025 56F 54F / 12% SW 13 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Jul 24 2025 52F 51F / 14% WSW 11 G 18 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Jul 24 2025 51F 51F / 10% WSW 13 G 20 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Jul 24 2025 50F 50F / 6% SSW 12 G 21 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Jul 25 2025 50F 50F / 6% WSW 16 G 25 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Jul 25 2025 48F 49F / 13% SW 14 G 22 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Jul 25 2025 49F 49F / 12% SW 12 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Jul 25 2025 48F 49F / 15% SSW 14 G 22 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Jul 25 2025 48F 48F / 16% SW 15 G 23 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Jul 25 2025 47F 49F / 11% WSW 15 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Jul 25 2025 47F 48F / 9% WSW 15 G 22 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"