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 26-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 Sat Jul 26 2025 47F 45F / 30% SSW 15 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat Jul 26 2025 47F 45F / 12% SSW 13 G 21 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat Jul 26 2025 48F 45F / 16% SSW 12 G 20 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat Jul 26 2025 48F 46F / 8% S 9 G 18 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat Jul 26 2025 51F 46F / 17% S 9 G 18 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat Jul 26 2025 55F 47F / 16% SSE 7 G 17 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat Jul 26 2025 58F 49F / 17% S 8 G 20 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat Jul 26 2025 59F 50F / 16% S 11 G 26 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat Jul 26 2025 61F 51F / 14% SSW 10 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat Jul 26 2025 62F 52F / 12% SSW 10 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat Jul 26 2025 61F 53F / 11% S 11 G 26 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat Jul 26 2025 62F 53F / 10% SSW 14 G 28 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat Jul 26 2025 60F 53F / 9% SW 12 G 26 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat Jul 26 2025 57F 52F / 5% SSW 15 G 30 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat Jul 26 2025 53F 50F / 12% SW 15 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat Jul 26 2025 50F 48F / 17% SW 16 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat Jul 26 2025 50F 48F / 13% SW 16 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat Jul 26 2025 49F 48F / 10% SW 17 G 29 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun Jul 27 2025 48F 47F / 11% SSW 18 G 33 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun Jul 27 2025 48F 46F / 7% SSW 18 G 34 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun Jul 27 2025 46F 45F / 18% SSW 19 G 36 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun Jul 27 2025 46F 45F / 21% S 19 G 38 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun Jul 27 2025 46F 44F / 21% SSW 19 G 36 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun Jul 27 2025 45F 44F / 26% SSW 20 G 37 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun Jul 27 2025 45F 44F / 29% S 20 G 37 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun Jul 27 2025 45F 44F / 25% SSW 21 G 37 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun Jul 27 2025 47F 45F / 26% SSW 20 G 36 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun Jul 27 2025 48F 45F / 21% SSW 19 G 34 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun Jul 27 2025 51F 46F / 20% S 16 G 31 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun Jul 27 2025 54F 47F / 19% S 13 G 31 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun Jul 27 2025 58F 48F / 18% S 12 G 28 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun Jul 27 2025 60F 49F / 14% S 12 G 27 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sun Jul 27 2025 62F 51F / 12% S 11 G 27 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sun Jul 27 2025 62F 52F / 14% SSW 11 G 26 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sun Jul 27 2025 61F 53F / 12% SSW 12 G 28 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sun Jul 27 2025 62F 53F / 11% S 12 G 27 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sun Jul 27 2025 59F 53F / 8% SSW 13 G 29 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sun Jul 27 2025 60F 57F / 3% SSW 15 G 29 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sun Jul 27 2025 56F 55F / 7% SSW 15 G 28 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sun Jul 27 2025 52F 52F / 10% SSW 14 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sun Jul 27 2025 52F 53F / 9% SSW 16 G 26 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sun Jul 27 2025 52F 52F / 9% SSW 15 G 28 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Mon Jul 28 2025 52F 51F / 11% SSW 18 G 31 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Mon Jul 28 2025 50F 51F / 8% SSW 17 G 31 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Mon Jul 28 2025 51F 50F / 9% SSW 17 G 29 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Mon Jul 28 2025 50F 50F / 12% SSW 18 G 30 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Mon Jul 28 2025 50F 50F / 13% SSW 20 G 32 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Mon Jul 28 2025 49F 50F / 8% SSW 19 G 33 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Mon Jul 28 2025 48F 49F / 7% SSW 19 G 31 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"