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 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 12 AM Wed Jul 09 2025 55F 55F / 18% SSW 16 G 24 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Wed Jul 09 2025 54F 55F / 11% SW 20 G 31 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Wed Jul 09 2025 53F 54F / 12% WSW 20 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Wed Jul 09 2025 53F 53F / 12% W 20 G 31 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Wed Jul 09 2025 53F 52F / 12% WSW 19 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Wed Jul 09 2025 52F 52F / 13% WSW 16 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Wed Jul 09 2025 52F 52F / 14% WSW 17 G 26 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Wed Jul 09 2025 51F 51F / 17% WSW 17 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Wed Jul 09 2025 52F 52F / 17% WSW 17 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Wed Jul 09 2025 54F 53F / 19% WSW 16 G 25 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Wed Jul 09 2025 58F 53F / 13% WSW 14 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Wed Jul 09 2025 63F 55F / 15% SW 13 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Wed Jul 09 2025 66F 57F / 17% SW 14 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Wed Jul 09 2025 67F 58F / 19% SW 13 G 26 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Wed Jul 09 2025 69F 58F / 18% SSW 10 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Wed Jul 09 2025 68F 58F / 15% SW 12 G 25 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Wed Jul 09 2025 68F 59F / 18% SSW 13 G 26 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Wed Jul 09 2025 67F 59F / 15% SW 14 G 25 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Wed Jul 09 2025 66F 59F / 16% SW 15 G 26 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Wed Jul 09 2025 64F 59F / 20% SW 16 G 26 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Wed Jul 09 2025 58F 55F / 26% SW 13 G 22 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Wed Jul 09 2025 57F 55F / 25% SW 18 G 30 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Wed Jul 09 2025 56F 54F / 23% SW 10 G 14 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Wed Jul 09 2025 57F 55F / 19% SSW 18 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Thu Jul 10 2025 55F 54F / 25% SSW 17 G 25 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Thu Jul 10 2025 52F 51F / 23% W 20 G 32 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Thu Jul 10 2025 51F 51F / 22% W 22 G 33 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Thu Jul 10 2025 50F 49F / 41% WNW 24 G 36 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Thu Jul 10 2025 48F 48F / 49% WNW 23 G 34 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Thu Jul 10 2025 47F 47F / 52% W 22 G 33 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Thu Jul 10 2025 46F 46F / 59% WNW 21 G 31 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Thu Jul 10 2025 45F 45F / 64% WNW 20 G 28 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Thu Jul 10 2025 46F 44F / 74% W 16 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Thu Jul 10 2025 47F 45F / 64% WNW 15 G 23 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Thu Jul 10 2025 50F 45F / 59% NW 12 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Thu Jul 10 2025 54F 46F / 49% WNW 12 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Thu Jul 10 2025 57F 48F / 47% WNW 13 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Thu Jul 10 2025 61F 52F / 39% WNW 13 G 23 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Thu Jul 10 2025 62F 53F / 40% WNW 13 G 24 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Thu Jul 10 2025 63F 54F / 41% WNW 15 G 24 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Thu Jul 10 2025 64F 55F / 32% WNW 15 G 25 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Thu Jul 10 2025 64F 54F / 29% WNW 15 G 24 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Thu Jul 10 2025 60F 54F / 29% WNW 17 G 25 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Thu Jul 10 2025 57F 54F / 29% WNW 16 G 23 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Thu Jul 10 2025 55F 53F / 32% WNW 17 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Thu Jul 10 2025 50F 50F / 41% WNW 17 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Thu Jul 10 2025 49F 48F / 42% WNW 18 G 27 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Thu Jul 10 2025 48F 48F / 48% WNW 18 G 27 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Fri Jul 11 2025 47F 47F / 45% NE 17 G 24 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"