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