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 00Z 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 PM Tue Jul 08 2025 65F 60F / 14% SW 12 G 23 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Jul 08 2025 62F 59F / 8% SW 15 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Jul 08 2025 58F 56F / 19% SW 15 G 23 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Jul 08 2025 55F 55F / 11% SW 15 G 23 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Jul 08 2025 55F 55F / 7% WSW 16 G 22 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Jul 08 2025 54F 55F / 8% WSW 15 G 21 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Jul 09 2025 55F 55F / 5% SW 18 G 28 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Jul 09 2025 55F 54F / 6% SW 21 G 34 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Jul 09 2025 53F 53F / 11% SW 20 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Jul 09 2025 53F 53F / 12% WSW 19 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Jul 09 2025 53F 53F / 6% WSW 19 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Jul 09 2025 53F 52F / 11% W 18 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Jul 09 2025 52F 52F / 14% WSW 18 G 27 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Jul 09 2025 51F 51F / 18% WSW 19 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Jul 09 2025 52F 52F / 22% WSW 18 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Jul 09 2025 54F 52F / 24% WSW 17 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Jul 09 2025 57F 53F / 20% SW 15 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Jul 09 2025 62F 55F / 20% SW 13 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Jul 09 2025 65F 56F / 21% SW 13 G 26 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Jul 09 2025 66F 57F / 23% SW 14 G 28 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Jul 09 2025 67F 58F / 26% SW 13 G 26 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Jul 09 2025 67F 57F / 28% SW 13 G 27 MPH 15000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Jul 09 2025 67F 58F / 28% SW 14 G 28 MPH 14900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Jul 09 2025 67F 59F / 26% SW 16 G 30 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Jul 09 2025 65F 59F / 24% SW 14 G 26 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Jul 09 2025 62F 57F / 29% S 16 G 27 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Jul 09 2025 59F 56F / 30% SW 19 G 32 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Jul 09 2025 56F 54F / 30% WNW 15 G 24 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Jul 09 2025 55F 53F / 26% WSW 21 G 36 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Jul 09 2025 54F 52F / 32% WSW 22 G 38 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Jul 10 2025 53F 51F / 43% S 21 G 33 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Jul 10 2025 52F 52F / 36% SW 22 G 37 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Jul 10 2025 51F 50F / 20% WSW 21 G 32 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Jul 10 2025 50F 49F / 30% W 22 G 31 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Jul 10 2025 48F 48F / 44% WNW 22 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Jul 10 2025 48F 47F / 51% W 22 G 33 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Jul 10 2025 47F 46F / 57% WNW 20 G 29 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Jul 10 2025 46F 47F / 62% WNW 19 G 26 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu Jul 10 2025 48F 48F / 56% WNW 20 G 31 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu Jul 10 2025 50F 49F / 45% WNW 20 G 31 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu Jul 10 2025 53F 48F / 52% WNW 19 G 29 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu Jul 10 2025 57F 48F / 55% WNW 15 G 26 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu Jul 10 2025 59F 51F / 54% WNW 12 G 21 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu Jul 10 2025 60F 51F / 52% WNW 14 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu Jul 10 2025 61F 51F / 42% WNW 14 G 24 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu Jul 10 2025 62F 53F / 38% WNW 15 G 27 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu Jul 10 2025 62F 53F / 37% WNW 15 G 25 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu Jul 10 2025 63F 53F / 41% WNW 16 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu Jul 10 2025 60F 53F / 34% WNW 16 G 24 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"