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 22-Apr-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 Tue Apr 22 2025 35F 27F / 41% WSW 13 G 21 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue Apr 22 2025 37F 27F / 47% WSW 12 G 20 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue Apr 22 2025 39F 29F / 56% WSW 11 G 20 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue Apr 22 2025 41F 30F / 52% W 12 G 20 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue Apr 22 2025 40F 31F / 54% W 9 G 17 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue Apr 22 2025 40F 31F / 49% WSW 8 G 15 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue Apr 22 2025 37F 31F / 47% WSW 9 G 14 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue Apr 22 2025 34F 31F / 39% SW 10 G 17 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue Apr 22 2025 33F 30F / 36% SW 12 G 19 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue Apr 22 2025 33F 30F / 32% SW 15 G 22 MPH 8400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue Apr 22 2025 33F 31F / 28% SW 15 G 23 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue Apr 22 2025 34F 32F / 26% SW 15 G 23 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed Apr 23 2025 34F 32F / 28% SSW 16 G 26 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed Apr 23 2025 34F 32F / 27% SW 16 G 27 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed Apr 23 2025 34F 31F / 28% SSW 16 G 26 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed Apr 23 2025 34F 31F / 26% SSW 17 G 27 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed Apr 23 2025 33F 31F / 33% SSW 16 G 25 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed Apr 23 2025 33F 30F / 32% SSW 17 G 27 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed Apr 23 2025 31F 30F / 35% SSW 17 G 28 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed Apr 23 2025 31F 29F / 43% SSW 19 G 31 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed Apr 23 2025 31F 29F / 46% SSW 19 G 32 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed Apr 23 2025 33F 30F / 48% SSW 18 G 30 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed Apr 23 2025 35F 30F / 49% SSW 16 G 29 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed Apr 23 2025 37F 30F / 48% SSW 15 G 29 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed Apr 23 2025 39F 32F / 45% SSW 15 G 30 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed Apr 23 2025 41F 33F / 43% SSW 16 G 30 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed Apr 23 2025 43F 34F / 44% SSW 13 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed Apr 23 2025 45F 35F / 44% SSW 15 G 30 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed Apr 23 2025 44F 35F / 40% SW 13 G 28 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed Apr 23 2025 44F 35F / 52% SW 9 G 18 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed Apr 23 2025 42F 35F / 49% SW 9 G 17 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed Apr 23 2025 40F 34F / 62% WSW 9 G 17 MPH 9400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed Apr 23 2025 36F 32F / 53% WSW 10 G 19 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Wed Apr 23 2025 34F 31F / 49% WSW 12 G 21 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Wed Apr 23 2025 33F 29F / 59% WNW 11 G 24 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Wed Apr 23 2025 32F 29F / 64% W 12 G 20 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Thu Apr 24 2025 32F 29F / 61% WSW 10 G 15 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Thu Apr 24 2025 33F 31F / 60% W 11 G 19 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Thu Apr 24 2025 33F 32F / 57% SSW 13 G 18 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Thu Apr 24 2025 33F 30F / 60% SW 12 G 17 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Thu Apr 24 2025 33F 31F / 53% WSW 17 G 25 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Thu Apr 24 2025 34F 32F / 51% WSW 17 G 25 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Thu Apr 24 2025 34F 31F / 58% SW 16 G 24 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Thu Apr 24 2025 34F 31F / 61% SW 16 G 24 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Thu Apr 24 2025 33F 31F / 57% SW 15 G 23 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Thu Apr 24 2025 34F 31F / 51% SW 14 G 21 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Thu Apr 24 2025 36F 32F / 54% SSW 10 G 18 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Thu Apr 24 2025 39F 32F / 56% SSW 10 G 18 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Thu Apr 24 2025 40F 33F / 54% SSW 11 G 22 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"