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 01-Aug-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 Fri Aug 01 2025 51F 50F / 2% SW 19 G 32 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Fri Aug 01 2025 50F 49F / 3% SW 16 G 24 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Fri Aug 01 2025 49F 49F / 6% WSW 14 G 19 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Fri Aug 01 2025 48F 48F / 16% W 14 G 20 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Fri Aug 01 2025 48F 47F / 20% WNW 17 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Fri Aug 01 2025 48F 47F / 21% WNW 16 G 24 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Fri Aug 01 2025 48F 46F / 29% WNW 14 G 19 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Fri Aug 01 2025 47F 46F / 29% WSW 11 G 14 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Fri Aug 01 2025 48F 47F / 26% SW 11 G 16 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Fri Aug 01 2025 50F 49F / 20% SW 13 G 18 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Fri Aug 01 2025 54F 49F / 14% SW 11 G 20 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Fri Aug 01 2025 59F 51F / 14% SW 10 G 19 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Fri Aug 01 2025 62F 52F / 12% SSW 9 G 18 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Fri Aug 01 2025 63F 54F / 12% SSW 10 G 19 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Fri Aug 01 2025 65F 54F / 9% SSW 10 G 21 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Fri Aug 01 2025 65F 55F / 4% SW 9 G 18 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Fri Aug 01 2025 65F 56F / 6% SW 11 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Fri Aug 01 2025 65F 56F / 0% SW 11 G 22 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Fri Aug 01 2025 62F 56F / 0% SW 11 G 19 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Fri Aug 01 2025 59F 55F / 7% SW 12 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Fri Aug 01 2025 55F 52F / 7% SW 12 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Fri Aug 01 2025 52F 51F / 19% W 12 G 15 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Fri Aug 01 2025 51F 51F / 15% WSW 13 G 15 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Fri Aug 01 2025 52F 51F / 8% SW 14 G 20 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sat Aug 02 2025 52F 51F / 5% SSW 13 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sat Aug 02 2025 51F 50F / 8% S 16 G 24 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sat Aug 02 2025 50F 50F / 12% SSW 17 G 26 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sat Aug 02 2025 50F 49F / 19% SW 18 G 29 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sat Aug 02 2025 49F 48F / 35% SW 20 G 33 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sat Aug 02 2025 49F 48F / 30% SW 20 G 32 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sat Aug 02 2025 48F 48F / 20% SW 20 G 30 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sat Aug 02 2025 48F 47F / 18% WSW 19 G 30 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sat Aug 02 2025 49F 48F / 16% SW 19 G 27 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sat Aug 02 2025 51F 49F / 21% SW 17 G 26 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sat Aug 02 2025 53F 49F / 17% SSW 14 G 26 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sat Aug 02 2025 57F 49F / 15% SSW 13 G 25 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sat Aug 02 2025 60F 51F / 15% SSW 12 G 24 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sat Aug 02 2025 64F 55F / 8% SW 13 G 24 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sat Aug 02 2025 64F 55F / 4% SW 12 G 24 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sat Aug 02 2025 65F 57F / 18% WSW 11 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sat Aug 02 2025 64F 56F / 19% WSW 10 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sat Aug 02 2025 64F 55F / 24% W 12 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sat Aug 02 2025 61F 55F / 16% W 14 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sat Aug 02 2025 58F 54F / 23% W 18 G 26 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sat Aug 02 2025 53F 49F / 55% WNW 19 G 27 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sat Aug 02 2025 50F 49F / 45% WNW 17 G 31 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sat Aug 02 2025 49F 48F / 43% WNW 20 G 33 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sat Aug 02 2025 48F 48F / 51% WNW 19 G 28 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Sun Aug 03 2025 48F 47F / 35% W 21 G 31 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"