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 03-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 Thu Jul 03 2025 48F 45F / 67% SSW 14 G 23 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Thu Jul 03 2025 47F 44F / 83% SSE 9 G 17 MPH 13700 FT 0:1 / -% 0.03" / 0.0" 0.03" / 0.0" 2 08 AM Thu Jul 03 2025 48F 44F / 78% S 11 G 19 MPH 13700 FT 0:1 / -% 0.01" / 0.0" 0.04" / 0.0" 3 09 AM Thu Jul 03 2025 48F 44F / 78% SSW 11 G 20 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 4 10 AM Thu Jul 03 2025 50F 44F / 76% SW 10 G 18 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 5 11 AM Thu Jul 03 2025 54F 45F / 85% SSW 8 G 15 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 6 12 PM Thu Jul 03 2025 56F 48F / 68% SW 8 G 18 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 7 01 PM Thu Jul 03 2025 57F 49F / 56% SW 9 G 19 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 8 02 PM Thu Jul 03 2025 60F 50F / 49% SW 8 G 18 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 9 03 PM Thu Jul 03 2025 61F 51F / 46% WSW 9 G 19 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 10 04 PM Thu Jul 03 2025 58F 50F / 50% SW 7 G 15 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 11 05 PM Thu Jul 03 2025 58F 50F / 52% SW 8 G 14 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 12 06 PM Thu Jul 03 2025 55F 49F / 63% SW 7 G 12 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 13 07 PM Thu Jul 03 2025 56F 50F / 46% SSW 12 G 19 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 14 08 PM Thu Jul 03 2025 53F 49F / 54% SW 13 G 20 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 15 09 PM Thu Jul 03 2025 49F 48F / 52% SW 16 G 24 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 16 10 PM Thu Jul 03 2025 49F 47F / 57% SSW 15 G 27 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 17 11 PM Thu Jul 03 2025 49F 46F / 57% SSW 16 G 29 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 18 12 AM Fri Jul 04 2025 48F 46F / 60% SSW 16 G 28 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 19 01 AM Fri Jul 04 2025 47F 46F / 56% SW 17 G 27 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 20 02 AM Fri Jul 04 2025 47F 45F / 55% WSW 15 G 22 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 21 03 AM Fri Jul 04 2025 47F 44F / 60% SSW 16 G 27 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 22 04 AM Fri Jul 04 2025 47F 44F / 61% SSW 17 G 29 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 23 05 AM Fri Jul 04 2025 47F 44F / 59% SW 19 G 31 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 24 06 AM Fri Jul 04 2025 45F 43F / 64% WSW 19 G 30 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 25 07 AM Fri Jul 04 2025 46F 43F / 64% SW 19 G 31 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 26 08 AM Fri Jul 04 2025 48F 43F / 63% WSW 20 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 27 09 AM Fri Jul 04 2025 49F 44F / 69% SW 18 G 30 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 28 10 AM Fri Jul 04 2025 51F 44F / 65% SW 16 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 29 11 AM Fri Jul 04 2025 52F 45F / 58% SW 15 G 27 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 30 12 PM Fri Jul 04 2025 56F 47F / 57% SW 12 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 31 01 PM Fri Jul 04 2025 58F 48F / 56% SW 13 G 27 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 32 02 PM Fri Jul 04 2025 60F 49F / 48% SW 15 G 32 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 33 03 PM Fri Jul 04 2025 59F 49F / 45% SW 14 G 30 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 34 04 PM Fri Jul 04 2025 55F 47F / 50% SW 14 G 29 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 35 05 PM Fri Jul 04 2025 59F 51F / 50% S 14 G 30 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 36 06 PM Fri Jul 04 2025 50F 44F / 82% W 15 G 29 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 37 07 PM Fri Jul 04 2025 54F 50F / 55% SW 16 G 29 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 38 08 PM Fri Jul 04 2025 54F 51F / 52% SW 18 G 32 MPH 13400 FT 0:1 / -% 0.01" / 0.0" 0.05" / 0.0" 39 09 PM Fri Jul 04 2025 51F 50F / 49% SW 21 G 36 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 40 10 PM Fri Jul 04 2025 50F 49F / 44% SW 23 G 40 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 41 11 PM Fri Jul 04 2025 50F 48F / 37% SW 22 G 42 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 42 12 AM Sat Jul 05 2025 49F 47F / 49% SSW 25 G 47 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 43 01 AM Sat Jul 05 2025 48F 48F / 37% SW 24 G 45 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 44 02 AM Sat Jul 05 2025 48F 47F / 36% SW 25 G 44 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 45 03 AM Sat Jul 05 2025 47F 47F / 27% SSW 24 G 41 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 46 04 AM Sat Jul 05 2025 47F 47F / 24% SW 25 G 40 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 47 05 AM Sat Jul 05 2025 46F 46F / 29% SW 22 G 37 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 48 06 AM Sat Jul 05 2025 45F 46F / 23% SW 21 G 32 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0"