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 17-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 Wed Jul 16 2025 63F 56F / 26% WNW 15 G 23 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed Jul 16 2025 61F 56F / 21% WNW 16 G 23 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Wed Jul 16 2025 57F 53F / 33% W 16 G 22 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Wed Jul 16 2025 54F 52F / 30% W 16 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Wed Jul 16 2025 53F 52F / 24% W 14 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Wed Jul 16 2025 51F 51F / 35% SW 12 G 15 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Thu Jul 17 2025 52F 52F / 36% WSW 12 G 17 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Thu Jul 17 2025 52F 51F / 37% SW 14 G 19 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Thu Jul 17 2025 52F 51F / 36% SSW 15 G 24 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Thu Jul 17 2025 50F 50F / 41% SSW 16 G 24 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Thu Jul 17 2025 50F 50F / 38% SSW 18 G 28 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Thu Jul 17 2025 50F 49F / 46% SSW 18 G 29 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Thu Jul 17 2025 48F 49F / 46% SSW 18 G 27 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Thu Jul 17 2025 49F 49F / 45% SW 19 G 29 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Thu Jul 17 2025 51F 50F / 41% SW 18 G 26 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Thu Jul 17 2025 53F 50F / 43% WSW 16 G 25 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Thu Jul 17 2025 56F 51F / 35% WSW 11 G 18 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Thu Jul 17 2025 60F 53F / 29% WSW 10 G 16 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Thu Jul 17 2025 64F 55F / 28% WSW 10 G 17 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Thu Jul 17 2025 65F 56F / 27% WSW 10 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Thu Jul 17 2025 67F 57F / 28% WSW 11 G 21 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Thu Jul 17 2025 67F 57F / 23% W 12 G 22 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Thu Jul 17 2025 66F 57F / 22% W 10 G 17 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Thu Jul 17 2025 65F 57F / 28% W 11 G 18 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Thu Jul 17 2025 61F 56F / 33% W 12 G 21 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Thu Jul 17 2025 61F 56F / 26% WSW 13 G 21 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Thu Jul 17 2025 58F 54F / 27% W 14 G 19 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Thu Jul 17 2025 55F 53F / 25% WSW 14 G 18 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Thu Jul 17 2025 54F 52F / 25% SW 15 G 22 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Thu Jul 17 2025 52F 50F / 39% SSW 14 G 24 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Fri Jul 18 2025 51F 50F / 45% SSE 15 G 19 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Fri Jul 18 2025 49F 49F / 47% S 14 G 26 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Fri Jul 18 2025 49F 49F / 49% S 12 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Fri Jul 18 2025 49F 48F / 49% S 15 G 20 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Fri Jul 18 2025 49F 48F / 47% S 16 G 23 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Fri Jul 18 2025 50F 48F / 51% SSW 16 G 27 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Fri Jul 18 2025 49F 46F / 55% SW 14 G 24 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Fri Jul 18 2025 49F 48F / 53% SSW 14 G 20 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Fri Jul 18 2025 50F 49F / 50% SSW 13 G 19 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Fri Jul 18 2025 51F 50F / 54% SSW 12 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Fri Jul 18 2025 53F 49F / 52% SW 11 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Fri Jul 18 2025 58F 52F / 49% SW 7 G 14 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Fri Jul 18 2025 60F 54F / 47% S 5 G 13 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Fri Jul 18 2025 61F 55F / 36% SSE 7 G 17 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Fri Jul 18 2025 61F 53F / 41% SSW 7 G 17 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Fri Jul 18 2025 63F 56F / 46% SSW 10 G 19 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Fri Jul 18 2025 61F 54F / 46% SW 11 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Fri Jul 18 2025 63F 55F / 52% WSW 10 G 19 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Fri Jul 18 2025 61F 55F / 52% WSW 14 G 24 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"