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 20-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 Sat Jul 19 2025 60F 54F / 41% W 14 G 23 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sat Jul 19 2025 58F 54F / 36% W 13 G 18 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Sat Jul 19 2025 54F 51F / 45% W 13 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Sat Jul 19 2025 52F 50F / 37% W 13 G 18 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Sat Jul 19 2025 51F 49F / 38% W 13 G 16 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Sat Jul 19 2025 50F 50F / 39% W 15 G 19 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sun Jul 20 2025 50F 50F / 17% W 16 G 21 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sun Jul 20 2025 49F 49F / 22% W 17 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sun Jul 20 2025 50F 49F / 27% W 17 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sun Jul 20 2025 49F 49F / 28% WSW 18 G 25 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sun Jul 20 2025 48F 48F / 34% WSW 17 G 25 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sun Jul 20 2025 48F 48F / 39% WSW 16 G 23 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sun Jul 20 2025 48F 48F / 43% SW 17 G 25 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sun Jul 20 2025 48F 48F / 45% SW 18 G 28 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sun Jul 20 2025 51F 49F / 44% SW 19 G 32 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sun Jul 20 2025 52F 49F / 44% SW 20 G 32 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sun Jul 20 2025 54F 50F / 41% SSW 17 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sun Jul 20 2025 59F 52F / 34% SSW 15 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sun Jul 20 2025 62F 53F / 38% SSW 15 G 28 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sun Jul 20 2025 64F 55F / 28% SW 13 G 27 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sun Jul 20 2025 66F 56F / 27% SSW 11 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sun Jul 20 2025 66F 56F / 23% SW 11 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sun Jul 20 2025 65F 56F / 19% WSW 11 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sun Jul 20 2025 66F 57F / 16% SW 12 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sun Jul 20 2025 63F 57F / 18% SW 11 G 21 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sun Jul 20 2025 59F 54F / 29% SSW 14 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sun Jul 20 2025 57F 53F / 28% SW 14 G 23 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sun Jul 20 2025 54F 52F / 29% SW 15 G 25 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sun Jul 20 2025 54F 51F / 25% SW 16 G 26 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sun Jul 20 2025 53F 51F / 30% SW 16 G 28 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Mon Jul 21 2025 52F 51F / 25% SW 19 G 31 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Mon Jul 21 2025 51F 50F / 27% SSW 19 G 33 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Mon Jul 21 2025 51F 49F / 26% SW 23 G 39 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Mon Jul 21 2025 50F 48F / 29% SW 22 G 37 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Mon Jul 21 2025 49F 48F / 34% SW 22 G 38 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Mon Jul 21 2025 49F 47F / 37% SW 21 G 38 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Mon Jul 21 2025 48F 48F / 32% SW 21 G 36 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Mon Jul 21 2025 49F 49F / 28% SSW 22 G 37 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Mon Jul 21 2025 52F 50F / 26% SSW 18 G 33 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Mon Jul 21 2025 52F 51F / 24% SSW 19 G 33 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Mon Jul 21 2025 54F 50F / 27% SSW 16 G 30 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Mon Jul 21 2025 58F 50F / 22% SSW 14 G 32 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Mon Jul 21 2025 61F 52F / 28% SSW 13 G 30 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Mon Jul 21 2025 61F 53F / 26% SSW 15 G 33 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Mon Jul 21 2025 62F 54F / 29% S 13 G 30 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Mon Jul 21 2025 59F 53F / 42% S 15 G 34 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Mon Jul 21 2025 59F 52F / 55% SSW 13 G 30 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Mon Jul 21 2025 62F 53F / 55% S 14 G 32 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Mon Jul 21 2025 61F 54F / 52% SSW 16 G 32 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"