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 18Z 18-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 12 PM Fri Jul 18 2025 57F 50F / 71% SSE 7 G 16 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri Jul 18 2025 58F 51F / 61% ESE 2 G 6 MPH 14200 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 2 02 PM Fri Jul 18 2025 61F 52F / 36% SE 5 G 12 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 3 03 PM Fri Jul 18 2025 63F 54F / 45% SSW 8 G 18 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 4 04 PM Fri Jul 18 2025 63F 54F / 44% SSW 8 G 17 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 5 05 PM Fri Jul 18 2025 63F 55F / 41% SSW 10 G 21 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 6 06 PM Fri Jul 18 2025 61F 56F / 43% WSW 9 G 17 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 7 07 PM Fri Jul 18 2025 59F 54F / 48% W 12 G 20 MPH 14900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 8 08 PM Fri Jul 18 2025 55F 51F / 61% WNW 14 G 22 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 9 09 PM Fri Jul 18 2025 49F 46F / 69% SSW 10 G 17 MPH 14600 FT 0:1 / -% 0.05" / 0.0" 0.06" / 0.0" 10 10 PM Fri Jul 18 2025 49F 46F / 82% WNW 14 G 26 MPH 14500 FT 0:1 / -% 0.04" / 0.0" 0.10" / 0.0" 11 11 PM Fri Jul 18 2025 48F 45F / 78% ESE 15 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 12 12 AM Sat Jul 19 2025 46F 44F / 78% SE 17 G 24 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 13 01 AM Sat Jul 19 2025 45F 46F / 70% SSW 13 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 14 02 AM Sat Jul 19 2025 47F 47F / 62% SW 12 G 18 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 15 03 AM Sat Jul 19 2025 47F 46F / 56% W 16 G 22 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 16 04 AM Sat Jul 19 2025 47F 45F / 64% W 14 G 22 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 17 05 AM Sat Jul 19 2025 47F 46F / 71% WSW 15 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 18 06 AM Sat Jul 19 2025 47F 46F / 62% W 15 G 21 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 19 07 AM Sat Jul 19 2025 47F 45F / 75% W 14 G 21 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 20 08 AM Sat Jul 19 2025 48F 46F / 65% W 14 G 21 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 21 09 AM Sat Jul 19 2025 49F 46F / 72% W 14 G 20 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 22 10 AM Sat Jul 19 2025 52F 47F / 67% WSW 10 G 17 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 23 11 AM Sat Jul 19 2025 56F 48F / 67% W 10 G 19 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 24 12 PM Sat Jul 19 2025 60F 50F / 50% W 11 G 21 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 25 01 PM Sat Jul 19 2025 61F 52F / 35% W 13 G 22 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 26 02 PM Sat Jul 19 2025 62F 52F / 29% W 14 G 27 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 27 03 PM Sat Jul 19 2025 61F 51F / 36% W 15 G 24 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 28 04 PM Sat Jul 19 2025 62F 51F / 28% W 13 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 29 05 PM Sat Jul 19 2025 62F 52F / 33% WNW 14 G 24 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 30 06 PM Sat Jul 19 2025 60F 53F / 35% W 16 G 26 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 31 07 PM Sat Jul 19 2025 57F 52F / 30% W 16 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 32 08 PM Sat Jul 19 2025 54F 50F / 32% W 18 G 27 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 33 09 PM Sat Jul 19 2025 51F 49F / 27% W 19 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 34 10 PM Sat Jul 19 2025 51F 49F / 24% W 20 G 28 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 35 11 PM Sat Jul 19 2025 50F 49F / 25% W 19 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 36 12 AM Sun Jul 20 2025 50F 49F / 22% W 17 G 24 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 37 01 AM Sun Jul 20 2025 52F 51F / 22% WSW 19 G 27 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 38 02 AM Sun Jul 20 2025 50F 51F / 26% WSW 18 G 26 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 39 03 AM Sun Jul 20 2025 49F 49F / 34% SSW 20 G 31 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 40 04 AM Sun Jul 20 2025 48F 49F / 34% SSW 18 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 41 05 AM Sun Jul 20 2025 48F 48F / 34% SSW 19 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 42 06 AM Sun Jul 20 2025 48F 48F / 31% SW 19 G 32 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 43 07 AM Sun Jul 20 2025 49F 48F / 41% SSW 19 G 31 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 44 08 AM Sun Jul 20 2025 50F 50F / 29% SSW 22 G 34 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 45 09 AM Sun Jul 20 2025 52F 51F / 26% SW 19 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 46 10 AM Sun Jul 20 2025 55F 51F / 24% SW 16 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 47 11 AM Sun Jul 20 2025 60F 52F / 26% SW 16 G 27 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 48 12 PM Sun Jul 20 2025 64F 54F / 25% SW 13 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0"