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 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 06 AM Tue Apr 22 2025 26F 24F / 47% WSW 21 G 30 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Apr 22 2025 25F 23F / 52% W 20 G 28 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Apr 22 2025 25F 23F / 62% W 18 G 25 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Apr 22 2025 27F 24F / 49% W 18 G 25 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Apr 22 2025 30F 25F / 46% W 16 G 23 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Apr 22 2025 33F 26F / 45% W 14 G 21 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Apr 22 2025 35F 26F / 42% W 14 G 23 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Apr 22 2025 37F 28F / 41% W 14 G 22 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Apr 22 2025 39F 29F / 49% WSW 13 G 22 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Apr 22 2025 40F 30F / 50% WSW 12 G 21 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Apr 22 2025 40F 31F / 51% W 11 G 18 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Apr 22 2025 40F 31F / 49% W 9 G 16 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Apr 22 2025 37F 31F / 52% WSW 10 G 15 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Apr 22 2025 34F 30F / 43% WSW 10 G 15 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Apr 22 2025 33F 30F / 41% SW 12 G 17 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Apr 22 2025 32F 30F / 33% SW 15 G 22 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Apr 22 2025 33F 31F / 27% SW 16 G 23 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Apr 22 2025 34F 31F / 28% SW 16 G 25 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Apr 23 2025 34F 32F / 28% SW 16 G 26 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Apr 23 2025 34F 32F / 26% SW 16 G 26 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Apr 23 2025 34F 31F / 30% SSW 16 G 26 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Apr 23 2025 35F 31F / 31% SSW 17 G 27 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Apr 23 2025 34F 31F / 34% SSW 15 G 25 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Apr 23 2025 33F 30F / 34% SSW 17 G 27 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Apr 23 2025 32F 30F / 39% SSW 19 G 31 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Apr 23 2025 31F 29F / 42% SSW 19 G 30 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Apr 23 2025 32F 29F / 47% SSW 20 G 32 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Apr 23 2025 33F 30F / 49% SSW 19 G 31 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Apr 23 2025 34F 30F / 51% SW 15 G 29 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Apr 23 2025 36F 30F / 45% SW 18 G 33 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Apr 23 2025 40F 32F / 44% SW 15 G 29 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Apr 23 2025 42F 33F / 45% SSW 13 G 26 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Apr 23 2025 44F 34F / 42% SSW 12 G 23 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Apr 23 2025 45F 35F / 41% SW 14 G 29 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Apr 23 2025 44F 35F / 40% SW 14 G 27 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Apr 23 2025 44F 35F / 38% SSW 14 G 27 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Apr 23 2025 41F 35F / 53% WSW 11 G 20 MPH 9400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Apr 23 2025 40F 35F / 57% WSW 11 G 23 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Wed Apr 23 2025 36F 33F / 56% WSW 13 G 22 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Wed Apr 23 2025 34F 33F / 51% SW 12 G 20 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Wed Apr 23 2025 34F 32F / 55% WSW 9 G 17 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Wed Apr 23 2025 33F 31F / 60% WSW 10 G 17 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Thu Apr 24 2025 34F 31F / 58% SW 13 G 18 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Thu Apr 24 2025 34F 31F / 57% WSW 12 G 19 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Thu Apr 24 2025 34F 31F / 56% SSW 12 G 19 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Thu Apr 24 2025 34F 31F / 51% SSW 15 G 21 MPH 8800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Thu Apr 24 2025 34F 31F / 50% SW 16 G 23 MPH 8800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Thu Apr 24 2025 33F 31F / 59% SW 16 G 25 MPH 8800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Thu Apr 24 2025 31F 30F / 63% SW 17 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"