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 02-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 06 AM Sat Aug 02 2025 47F 48F / 13% SW 18 G 29 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat Aug 02 2025 48F 48F / 8% SW 18 G 29 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat Aug 02 2025 49F 48F / 13% SW 17 G 26 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat Aug 02 2025 50F 49F / 6% WSW 14 G 20 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat Aug 02 2025 53F 49F / 16% SW 12 G 19 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat Aug 02 2025 59F 51F / 7% SW 12 G 21 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat Aug 02 2025 61F 52F / 6% SW 11 G 21 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat Aug 02 2025 62F 53F / 8% SW 12 G 22 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat Aug 02 2025 64F 54F / 8% WSW 11 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat Aug 02 2025 65F 55F / 10% SW 9 G 18 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat Aug 02 2025 62F 54F / 16% W 14 G 23 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat Aug 02 2025 62F 54F / 18% W 13 G 19 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat Aug 02 2025 59F 53F / 13% W 14 G 24 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat Aug 02 2025 57F 51F / 8% W 18 G 27 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat Aug 02 2025 52F 49F / 31% WNW 17 G 27 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat Aug 02 2025 48F 47F / 36% WNW 15 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat Aug 02 2025 47F 47F / 35% WSW 14 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat Aug 02 2025 46F 47F / 28% W 16 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun Aug 03 2025 46F 47F / 33% W 18 G 25 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun Aug 03 2025 46F 46F / 29% WNW 19 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun Aug 03 2025 46F 45F / 37% WNW 20 G 28 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun Aug 03 2025 46F 45F / 36% WNW 19 G 25 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun Aug 03 2025 47F 45F / 34% WNW 18 G 24 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun Aug 03 2025 46F 45F / 35% W 18 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun Aug 03 2025 46F 45F / 33% W 19 G 25 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun Aug 03 2025 45F 44F / 32% W 18 G 24 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun Aug 03 2025 46F 45F / 33% W 19 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun Aug 03 2025 49F 46F / 33% W 16 G 23 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun Aug 03 2025 53F 47F / 30% W 12 G 17 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun Aug 03 2025 57F 49F / 27% W 9 G 18 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun Aug 03 2025 61F 51F / 27% W 8 G 16 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun Aug 03 2025 62F 52F / 27% W 8 G 16 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sun Aug 03 2025 65F 54F / 25% W 8 G 18 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sun Aug 03 2025 65F 55F / 31% W 8 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sun Aug 03 2025 65F 55F / 22% WSW 8 G 17 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sun Aug 03 2025 65F 56F / 19% SW 9 G 17 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sun Aug 03 2025 61F 54F / 23% WSW 8 G 14 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sun Aug 03 2025 62F 58F / 17% SW 10 G 16 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sun Aug 03 2025 58F 56F / 28% SW 11 G 15 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sun Aug 03 2025 54F 53F / 28% SSW 15 G 22 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sun Aug 03 2025 54F 54F / 29% SSW 18 G 27 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sun Aug 03 2025 54F 53F / 21% SSW 16 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Mon Aug 04 2025 54F 53F / 22% SSW 20 G 34 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Mon Aug 04 2025 53F 53F / 19% SSW 21 G 38 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Mon Aug 04 2025 53F 52F / 13% S 22 G 36 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Mon Aug 04 2025 51F 51F / 12% SSW 22 G 35 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Mon Aug 04 2025 51F 51F / 14% SSW 22 G 35 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Mon Aug 04 2025 50F 51F / 9% SW 21 G 34 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Mon Aug 04 2025 49F 50F / 10% SSW 20 G 32 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"