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 13-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 AM Sun Jul 13 2025 48F 48F / 43% NW 13 G 19 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sun Jul 13 2025 49F 48F / 43% NW 17 G 24 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sun Jul 13 2025 50F 48F / 39% NW 18 G 25 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sun Jul 13 2025 51F 50F / 33% NW 16 G 24 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sun Jul 13 2025 55F 51F / 27% NW 14 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sun Jul 13 2025 60F 53F / 24% WNW 10 G 17 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sun Jul 13 2025 64F 55F / 18% WNW 9 G 17 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sun Jul 13 2025 65F 57F / 18% WNW 8 G 16 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sun Jul 13 2025 68F 57F / 16% W 9 G 18 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sun Jul 13 2025 68F 58F / 15% WNW 10 G 19 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sun Jul 13 2025 67F 58F / 15% W 10 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sun Jul 13 2025 67F 59F / 12% W 11 G 18 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sun Jul 13 2025 64F 59F / 13% W 10 G 18 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sun Jul 13 2025 62F 57F / 20% W 12 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sun Jul 13 2025 57F 55F / 27% W 13 G 19 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sun Jul 13 2025 54F 54F / 22% W 15 G 20 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sun Jul 13 2025 54F 54F / 12% W 14 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sun Jul 13 2025 54F 54F / 5% W 14 G 19 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Mon Jul 14 2025 54F 54F / 4% W 14 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Mon Jul 14 2025 53F 53F / 0% WNW 15 G 22 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Mon Jul 14 2025 53F 52F / 15% NW 22 G 30 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Mon Jul 14 2025 52F 52F / 21% N 18 G 26 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Mon Jul 14 2025 52F 51F / 15% NW 20 G 27 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Mon Jul 14 2025 52F 51F / 17% WNW 20 G 25 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Mon Jul 14 2025 50F 50F / 23% W 19 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Mon Jul 14 2025 50F 49F / 23% W 18 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Mon Jul 14 2025 50F 50F / 27% W 18 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Mon Jul 14 2025 53F 51F / 31% W 17 G 25 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Mon Jul 14 2025 56F 51F / 23% W 15 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Mon Jul 14 2025 60F 51F / 19% W 16 G 25 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Mon Jul 14 2025 64F 53F / 21% W 16 G 28 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Mon Jul 14 2025 65F 53F / 22% W 19 G 30 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Mon Jul 14 2025 66F 53F / 20% W 20 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Mon Jul 14 2025 67F 54F / 21% W 18 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Mon Jul 14 2025 67F 55F / 21% W 19 G 30 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Mon Jul 14 2025 68F 56F / 24% WNW 19 G 29 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Mon Jul 14 2025 63F 55F / 24% W 20 G 31 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Mon Jul 14 2025 61F 57F / 29% W 24 G 37 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Mon Jul 14 2025 58F 56F / 29% WNW 23 G 34 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Mon Jul 14 2025 55F 54F / 26% WNW 22 G 32 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Mon Jul 14 2025 55F 54F / 29% WNW 23 G 33 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Mon Jul 14 2025 54F 53F / 29% WNW 20 G 31 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Tue Jul 15 2025 54F 53F / 30% W 21 G 34 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Tue Jul 15 2025 53F 53F / 33% W 17 G 28 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Tue Jul 15 2025 55F 53F / 29% W 14 G 24 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Tue Jul 15 2025 54F 53F / 29% WSW 17 G 20 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Tue Jul 15 2025 54F 53F / 28% WSW 17 G 22 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Tue Jul 15 2025 53F 53F / 21% WSW 16 G 20 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Tue Jul 15 2025 52F 52F / 25% SW 17 G 23 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"