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 04-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 Fri Jul 04 2025 45F 45F / 56% SW 18 G 30 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Fri Jul 04 2025 46F 44F / 52% SW 21 G 35 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Fri Jul 04 2025 48F 45F / 49% SW 22 G 35 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Fri Jul 04 2025 48F 45F / 51% WSW 17 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Fri Jul 04 2025 50F 45F / 47% SW 17 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Fri Jul 04 2025 54F 45F / 59% SSW 13 G 25 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Fri Jul 04 2025 57F 47F / 50% SSW 11 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Fri Jul 04 2025 58F 49F / 45% SW 13 G 26 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Fri Jul 04 2025 61F 50F / 43% SW 12 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Fri Jul 04 2025 61F 51F / 45% SSW 13 G 28 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Fri Jul 04 2025 60F 52F / 39% SSW 13 G 28 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Fri Jul 04 2025 57F 50F / 42% S 16 G 31 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Fri Jul 04 2025 52F 46F / 60% SSW 11 G 24 MPH 13600 FT 0:1 / -% 0.03" / 0.0" 0.03" / 0.0" 13 07 PM Fri Jul 04 2025 52F 49F / 42% SW 21 G 42 MPH 13500 FT 0:1 / -% 0.01" / 0.0" 0.04" / 0.0" 14 08 PM Fri Jul 04 2025 50F 47F / 69% WNW 12 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 15 09 PM Fri Jul 04 2025 52F 49F / 36% SW 19 G 31 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 16 10 PM Fri Jul 04 2025 50F 48F / 36% SW 23 G 42 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 17 11 PM Fri Jul 04 2025 50F 48F / 29% SW 24 G 43 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 18 12 AM Sat Jul 05 2025 49F 47F / 44% SW 25 G 48 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 19 01 AM Sat Jul 05 2025 48F 47F / 27% SW 25 G 44 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 20 02 AM Sat Jul 05 2025 47F 45F / 33% SW 24 G 42 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 21 03 AM Sat Jul 05 2025 46F 45F / 35% SW 23 G 40 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 22 04 AM Sat Jul 05 2025 45F 45F / 25% SW 22 G 37 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 23 05 AM Sat Jul 05 2025 45F 44F / 24% SW 22 G 36 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 24 06 AM Sat Jul 05 2025 44F 44F / 28% SW 19 G 32 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 25 07 AM Sat Jul 05 2025 44F 44F / 29% SW 19 G 30 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 26 08 AM Sat Jul 05 2025 46F 44F / 36% SW 20 G 31 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 27 09 AM Sat Jul 05 2025 47F 45F / 37% SW 19 G 31 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 28 10 AM Sat Jul 05 2025 50F 46F / 35% SSW 17 G 30 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 29 11 AM Sat Jul 05 2025 54F 46F / 36% SSW 16 G 33 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 30 12 PM Sat Jul 05 2025 57F 48F / 32% SSW 16 G 34 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 31 01 PM Sat Jul 05 2025 59F 49F / 24% SSW 15 G 31 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 32 02 PM Sat Jul 05 2025 62F 50F / 18% SSW 14 G 31 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 33 03 PM Sat Jul 05 2025 62F 51F / 15% SW 13 G 28 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 34 04 PM Sat Jul 05 2025 62F 52F / 9% SW 15 G 29 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 35 05 PM Sat Jul 05 2025 62F 53F / 12% SW 14 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 36 06 PM Sat Jul 05 2025 58F 51F / 37% W 12 G 20 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 37 07 PM Sat Jul 05 2025 58F 54F / 40% W 12 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 38 08 PM Sat Jul 05 2025 54F 53F / 43% W 13 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 39 09 PM Sat Jul 05 2025 50F 49F / 43% WSW 14 G 20 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 40 10 PM Sat Jul 05 2025 49F 49F / 38% WSW 15 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 41 11 PM Sat Jul 05 2025 48F 48F / 27% WSW 13 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 42 12 AM Sun Jul 06 2025 48F 48F / 28% SW 15 G 22 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 43 01 AM Sun Jul 06 2025 47F 47F / 32% WSW 13 G 19 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 44 02 AM Sun Jul 06 2025 46F 46F / 33% WSW 12 G 18 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 45 03 AM Sun Jul 06 2025 44F 45F / 37% SW 15 G 20 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 46 04 AM Sun Jul 06 2025 46F 46F / 31% WSW 15 G 21 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 47 05 AM Sun Jul 06 2025 46F 47F / 28% W 15 G 19 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0" 48 06 AM Sun Jul 06 2025 46F 47F / 25% WSW 14 G 18 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.04" / 0.0"