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 06Z 10-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 AM Thu Jul 10 2025 55F 53F / 31% SSW 22 G 38 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Thu Jul 10 2025 52F 52F / 35% WSW 22 G 35 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Thu Jul 10 2025 50F 50F / 46% WNW 24 G 37 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Thu Jul 10 2025 48F 49F / 49% WNW 25 G 38 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Thu Jul 10 2025 47F 47F / 47% WNW 19 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Thu Jul 10 2025 48F 48F / 37% WNW 16 G 25 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Thu Jul 10 2025 48F 47F / 44% WNW 15 G 21 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Thu Jul 10 2025 45F 44F / 70% W 16 G 23 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Thu Jul 10 2025 45F 44F / 67% W 17 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Thu Jul 10 2025 47F 45F / 54% WNW 18 G 25 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Thu Jul 10 2025 50F 45F / 56% WNW 16 G 25 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Thu Jul 10 2025 55F 47F / 51% WNW 15 G 26 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Thu Jul 10 2025 58F 49F / 43% WNW 16 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Thu Jul 10 2025 60F 50F / 38% WNW 14 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Thu Jul 10 2025 62F 52F / 37% WNW 12 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Thu Jul 10 2025 63F 52F / 46% WNW 12 G 21 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Thu Jul 10 2025 63F 53F / 47% WNW 13 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Thu Jul 10 2025 62F 53F / 46% WNW 15 G 25 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Thu Jul 10 2025 59F 53F / 43% WNW 15 G 24 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Thu Jul 10 2025 57F 52F / 43% WNW 15 G 22 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Thu Jul 10 2025 53F 49F / 42% WNW 15 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Thu Jul 10 2025 50F 48F / 43% WNW 14 G 21 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Thu Jul 10 2025 49F 48F / 38% WNW 13 G 21 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Thu Jul 10 2025 49F 47F / 46% WNW 14 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Fri Jul 11 2025 48F 47F / 44% WNW 16 G 24 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Fri Jul 11 2025 48F 46F / 43% NW 18 G 24 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Fri Jul 11 2025 47F 46F / 38% WNW 20 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Fri Jul 11 2025 47F 46F / 35% WNW 22 G 32 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Fri Jul 11 2025 47F 45F / 34% WNW 21 G 31 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Fri Jul 11 2025 47F 45F / 36% WNW 22 G 35 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Fri Jul 11 2025 46F 45F / 31% WNW 23 G 33 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Fri Jul 11 2025 46F 44F / 33% WNW 22 G 32 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Fri Jul 11 2025 47F 46F / 33% WNW 23 G 30 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Fri Jul 11 2025 49F 46F / 38% WNW 20 G 30 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Fri Jul 11 2025 51F 47F / 34% WNW 16 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Fri Jul 11 2025 55F 48F / 35% WNW 13 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Fri Jul 11 2025 58F 50F / 37% WNW 13 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Fri Jul 11 2025 61F 53F / 46% WNW 15 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Fri Jul 11 2025 62F 53F / 37% WNW 14 G 24 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Fri Jul 11 2025 63F 54F / 36% WNW 14 G 24 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Fri Jul 11 2025 63F 55F / 34% WNW 14 G 24 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Fri Jul 11 2025 64F 55F / 34% WNW 15 G 25 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Fri Jul 11 2025 60F 54F / 31% W 15 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Fri Jul 11 2025 58F 54F / 38% W 16 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Fri Jul 11 2025 55F 53F / 51% W 14 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Fri Jul 11 2025 50F 50F / 55% WNW 14 G 21 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Fri Jul 11 2025 49F 48F / 60% NW 16 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Fri Jul 11 2025 48F 49F / 62% NW 18 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Sat Jul 12 2025 48F 48F / 55% NW 18 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"