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 25-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 12 PM Fri Jul 25 2025 60F 51F / 13% SSE 6 G 15 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri Jul 25 2025 61F 52F / 15% S 8 G 20 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Fri Jul 25 2025 63F 52F / 12% S 9 G 23 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Fri Jul 25 2025 63F 53F / 12% S 9 G 23 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Fri Jul 25 2025 63F 54F / 12% SSW 9 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Fri Jul 25 2025 63F 55F / 6% SSW 8 G 19 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Fri Jul 25 2025 61F 55F / 7% SW 12 G 23 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Fri Jul 25 2025 58F 53F / 8% SW 10 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Fri Jul 25 2025 54F 51F / 14% WSW 12 G 22 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Fri Jul 25 2025 52F 50F / 10% WSW 14 G 24 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Fri Jul 25 2025 51F 49F / 8% WSW 13 G 21 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Fri Jul 25 2025 51F 49F / 2% SW 14 G 24 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Sat Jul 26 2025 50F 49F / 6% SW 13 G 23 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Sat Jul 26 2025 49F 48F / 7% SW 15 G 26 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Sat Jul 26 2025 48F 48F / 6% SSW 14 G 23 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Sat Jul 26 2025 48F 47F / 2% WSW 15 G 24 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Sat Jul 26 2025 48F 47F / 4% WSW 16 G 26 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Sat Jul 26 2025 48F 47F / 3% SW 17 G 29 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Sat Jul 26 2025 47F 45F / 4% SSW 15 G 29 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Sat Jul 26 2025 46F 45F / 5% SSW 15 G 27 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Sat Jul 26 2025 47F 45F / 20% S 18 G 32 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Sat Jul 26 2025 49F 46F / 30% S 14 G 28 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Sat Jul 26 2025 51F 46F / 19% S 11 G 25 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Sat Jul 26 2025 56F 47F / 12% S 11 G 26 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Sat Jul 26 2025 58F 49F / 18% S 11 G 27 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Sat Jul 26 2025 59F 50F / 15% S 12 G 27 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Sat Jul 26 2025 61F 51F / 16% SSW 10 G 25 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Sat Jul 26 2025 62F 53F / 16% SW 11 G 27 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Sat Jul 26 2025 62F 52F / 15% SSW 11 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Sat Jul 26 2025 61F 52F / 12% SSW 11 G 25 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Sat Jul 26 2025 59F 53F / 12% SW 13 G 25 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Sat Jul 26 2025 57F 52F / 10% SSW 15 G 28 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Sat Jul 26 2025 53F 49F / 9% SW 15 G 27 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Sat Jul 26 2025 50F 48F / 13% SW 16 G 28 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Sat Jul 26 2025 50F 48F / 10% SW 17 G 30 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Sat Jul 26 2025 48F 47F / 10% SW 18 G 31 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sun Jul 27 2025 47F 46F / 12% SW 17 G 31 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sun Jul 27 2025 48F 48F / 14% SSW 19 G 33 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sun Jul 27 2025 48F 48F / 20% SSW 19 G 31 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sun Jul 27 2025 47F 47F / 19% SSW 19 G 32 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sun Jul 27 2025 47F 47F / 21% SSW 18 G 31 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sun Jul 27 2025 46F 46F / 20% SSW 17 G 32 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sun Jul 27 2025 46F 46F / 23% SSW 18 G 31 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sun Jul 27 2025 47F 47F / 21% SSW 18 G 30 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sun Jul 27 2025 48F 48F / 18% SSW 18 G 32 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sun Jul 27 2025 49F 49F / 23% SSW 17 G 33 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sun Jul 27 2025 52F 49F / 18% SSW 16 G 30 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sun Jul 27 2025 56F 49F / 18% SSW 14 G 27 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sun Jul 27 2025 60F 51F / 16% SSW 12 G 26 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"