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 09-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 Wed Jul 09 2025 50F 51F / 32% WSW 17 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jul 09 2025 50F 51F / 28% WSW 16 G 25 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jul 09 2025 53F 52F / 24% WSW 17 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jul 09 2025 54F 53F / 21% WSW 15 G 26 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jul 09 2025 57F 53F / 22% SW 16 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jul 09 2025 62F 54F / 21% SSW 14 G 26 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jul 09 2025 65F 55F / 19% SSW 13 G 27 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jul 09 2025 66F 56F / 18% SSW 13 G 29 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jul 09 2025 68F 57F / 22% SSW 14 G 31 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jul 09 2025 69F 58F / 20% SSW 14 G 29 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jul 09 2025 68F 59F / 17% SW 14 G 29 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jul 09 2025 68F 60F / 11% SW 13 G 24 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jul 09 2025 66F 60F / 11% SW 14 G 29 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jul 09 2025 64F 58F / 14% SSW 15 G 27 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jul 09 2025 57F 54F / 20% WNW 17 G 27 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jul 09 2025 56F 56F / 18% SSW 19 G 31 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jul 09 2025 57F 55F / 19% SW 19 G 34 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jul 09 2025 55F 53F / 20% WSW 15 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jul 10 2025 56F 55F / 18% SSW 19 G 32 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jul 10 2025 52F 52F / 19% W 18 G 31 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jul 10 2025 52F 51F / 21% W 21 G 33 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jul 10 2025 50F 50F / 44% W 20 G 32 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jul 10 2025 49F 49F / 38% WNW 24 G 34 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jul 10 2025 47F 47F / 49% WNW 21 G 31 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jul 10 2025 46F 46F / 58% WNW 20 G 29 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jul 10 2025 45F 45F / 51% WNW 21 G 30 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jul 10 2025 46F 45F / 48% WNW 19 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jul 10 2025 47F 45F / 54% WNW 15 G 20 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jul 10 2025 51F 46F / 59% WSW 10 G 16 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jul 10 2025 56F 47F / 57% WNW 10 G 18 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jul 10 2025 59F 49F / 48% WNW 11 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jul 10 2025 60F 50F / 42% WNW 13 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jul 10 2025 63F 51F / 44% WNW 13 G 25 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jul 10 2025 63F 52F / 45% WNW 13 G 25 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Jul 10 2025 63F 52F / 42% WNW 15 G 25 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Jul 10 2025 63F 53F / 32% WNW 16 G 25 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Jul 10 2025 58F 52F / 35% WNW 15 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Jul 10 2025 58F 54F / 35% WNW 18 G 27 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Jul 10 2025 54F 53F / 33% WNW 17 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Jul 10 2025 51F 49F / 35% WNW 17 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Jul 10 2025 50F 49F / 38% WNW 18 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Jul 10 2025 49F 48F / 41% WNW 17 G 24 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Jul 11 2025 48F 48F / 41% WNW 17 G 25 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Jul 11 2025 47F 47F / 38% NW 16 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Jul 11 2025 47F 47F / 36% WNW 16 G 20 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Jul 11 2025 48F 47F / 32% WNW 16 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Jul 11 2025 48F 47F / 34% WNW 16 G 24 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Jul 11 2025 47F 47F / 31% WNW 19 G 23 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Jul 11 2025 46F 47F / 33% W 17 G 21 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"