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 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 06 AM Fri Jul 18 2025 50F 49F / 53% N 8 G 9 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Fri Jul 18 2025 49F 49F / 51% SE 7 G 10 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Fri Jul 18 2025 51F 49F / 54% S 10 G 14 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Fri Jul 18 2025 51F 49F / 55% SE 8 G 11 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Fri Jul 18 2025 54F 49F / 54% S 7 G 10 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Fri Jul 18 2025 58F 50F / 58% SSW 5 G 8 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Fri Jul 18 2025 58F 51F / 45% WNW 5 G 10 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Fri Jul 18 2025 58F 51F / 52% W 3 G 12 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Fri Jul 18 2025 63F 53F / 43% WSW 7 G 18 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Fri Jul 18 2025 63F 53F / 42% W 9 G 18 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Fri Jul 18 2025 62F 55F / 43% W 8 G 15 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Fri Jul 18 2025 63F 55F / 45% WSW 7 G 13 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Fri Jul 18 2025 62F 55F / 42% W 10 G 19 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Fri Jul 18 2025 60F 54F / 43% W 14 G 21 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Fri Jul 18 2025 55F 51F / 30% WNW 20 G 30 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Fri Jul 18 2025 52F 49F / 58% WNW 17 G 24 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Fri Jul 18 2025 51F 47F / 67% NW 16 G 27 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Fri Jul 18 2025 48F 45F / 88% SE 15 G 23 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sat Jul 19 2025 47F 47F / 64% SW 14 G 17 MPH 13300 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 19 01 AM Sat Jul 19 2025 48F 48F / 48% W 18 G 24 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 20 02 AM Sat Jul 19 2025 48F 47F / 48% WSW 16 G 22 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 21 03 AM Sat Jul 19 2025 47F 47F / 57% W 13 G 19 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 22 04 AM Sat Jul 19 2025 48F 47F / 47% W 15 G 23 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 23 05 AM Sat Jul 19 2025 48F 46F / 56% WSW 15 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 24 06 AM Sat Jul 19 2025 48F 46F / 64% WSW 15 G 22 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 25 07 AM Sat Jul 19 2025 47F 46F / 63% WSW 15 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 26 08 AM Sat Jul 19 2025 49F 46F / 61% W 16 G 24 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 27 09 AM Sat Jul 19 2025 50F 46F / 71% W 15 G 21 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 28 10 AM Sat Jul 19 2025 53F 47F / 61% W 11 G 19 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 29 11 AM Sat Jul 19 2025 56F 49F / 47% W 11 G 19 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 30 12 PM Sat Jul 19 2025 59F 51F / 44% W 11 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 31 01 PM Sat Jul 19 2025 62F 52F / 39% W 11 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 32 02 PM Sat Jul 19 2025 62F 51F / 35% W 12 G 22 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 33 03 PM Sat Jul 19 2025 61F 51F / 48% WNW 15 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.01" / 0.0" 34 04 PM Sat Jul 19 2025 56F 48F / 46% W 16 G 25 MPH 13300 FT 0:1 / -% 0.09" / 0.0" 0.10" / 0.0" 35 05 PM Sat Jul 19 2025 60F 51F / 43% W 15 G 22 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 36 06 PM Sat Jul 19 2025 58F 51F / 42% W 16 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 37 07 PM Sat Jul 19 2025 59F 54F / 41% W 17 G 24 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 38 08 PM Sat Jul 19 2025 55F 53F / 28% W 19 G 28 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 39 09 PM Sat Jul 19 2025 51F 50F / 38% W 18 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 40 10 PM Sat Jul 19 2025 51F 51F / 36% W 18 G 25 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 41 11 PM Sat Jul 19 2025 51F 50F / 29% WSW 16 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 42 12 AM Sun Jul 20 2025 51F 51F / 30% WSW 19 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 43 01 AM Sun Jul 20 2025 49F 50F / 37% WSW 17 G 26 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 44 02 AM Sun Jul 20 2025 51F 50F / 32% WSW 17 G 27 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 45 03 AM Sun Jul 20 2025 49F 48F / 39% S 19 G 28 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 46 04 AM Sun Jul 20 2025 48F 48F / 36% SSW 19 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 47 05 AM Sun Jul 20 2025 48F 48F / 37% SW 17 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 48 06 AM Sun Jul 20 2025 48F 48F / 39% SSW 19 G 29 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0"