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 18Z 29-Jun-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 PM Sun Jun 29 2025 61F 53F / 38% SW 6 G 11 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sun Jun 29 2025 63F 54F / 33% WSW 7 G 12 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sun Jun 29 2025 65F 55F / 23% W 8 G 15 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sun Jun 29 2025 65F 55F / 28% W 11 G 18 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sun Jun 29 2025 65F 55F / 29% W 12 G 20 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sun Jun 29 2025 64F 56F / 23% W 14 G 23 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sun Jun 29 2025 61F 56F / 26% WNW 15 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sun Jun 29 2025 58F 54F / 27% WNW 15 G 22 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sun Jun 29 2025 55F 52F / 36% WNW 15 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sun Jun 29 2025 52F 50F / 29% WNW 16 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sun Jun 29 2025 51F 50F / 27% WNW 15 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sun Jun 29 2025 50F 49F / 39% NW 14 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Mon Jun 30 2025 48F 49F / 42% NNW 14 G 21 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Mon Jun 30 2025 47F 48F / 40% N 15 G 22 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Mon Jun 30 2025 48F 48F / 35% NE 14 G 20 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Mon Jun 30 2025 49F 48F / 30% N 15 G 19 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Mon Jun 30 2025 49F 48F / 32% NNE 14 G 19 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Mon Jun 30 2025 49F 48F / 32% NW 13 G 19 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Mon Jun 30 2025 49F 48F / 28% W 12 G 16 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Mon Jun 30 2025 48F 48F / 31% S 12 G 15 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Mon Jun 30 2025 48F 48F / 30% SSE 13 G 19 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Mon Jun 30 2025 50F 49F / 38% SSE 12 G 17 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Mon Jun 30 2025 54F 49F / 36% SSE 9 G 14 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Mon Jun 30 2025 60F 51F / 27% SSE 7 G 15 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Mon Jun 30 2025 63F 54F / 22% SW 8 G 15 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Mon Jun 30 2025 65F 56F / 17% WNW 12 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Mon Jun 30 2025 67F 56F / 15% WNW 10 G 19 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Mon Jun 30 2025 68F 58F / 20% W 11 G 20 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Mon Jun 30 2025 67F 57F / 15% W 8 G 15 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Mon Jun 30 2025 66F 57F / 16% WNW 11 G 20 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Mon Jun 30 2025 62F 56F / 26% WNW 13 G 21 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Mon Jun 30 2025 60F 56F / 26% WNW 11 G 16 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Mon Jun 30 2025 57F 54F / 29% WNW 12 G 16 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Mon Jun 30 2025 54F 53F / 28% WNW 13 G 19 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Mon Jun 30 2025 54F 52F / 28% WNW 13 G 20 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Mon Jun 30 2025 53F 52F / 28% WSW 12 G 17 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Tue Jul 01 2025 52F 51F / 30% SW 13 G 18 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Tue Jul 01 2025 54F 54F / 27% SSW 14 G 20 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Tue Jul 01 2025 53F 54F / 33% SSW 14 G 20 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Tue Jul 01 2025 53F 53F / 32% SSW 15 G 23 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Tue Jul 01 2025 53F 53F / 26% SSW 15 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Tue Jul 01 2025 52F 52F / 21% SW 16 G 24 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Tue Jul 01 2025 52F 52F / 21% SSW 14 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Tue Jul 01 2025 51F 52F / 30% SSW 16 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Tue Jul 01 2025 50F 51F / 27% SSW 17 G 24 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Tue Jul 01 2025 53F 53F / 25% SSW 16 G 26 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Tue Jul 01 2025 57F 54F / 21% S 12 G 21 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Tue Jul 01 2025 63F 55F / 19% S 11 G 20 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Tue Jul 01 2025 64F 55F / 19% SW 11 G 23 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"