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 21-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 Mon Apr 21 2025 32F 22F / 78% W 19 G 30 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Mon Apr 21 2025 33F 23F / 72% W 16 G 27 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Mon Apr 21 2025 35F 25F / 69% W 14 G 23 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Mon Apr 21 2025 37F 27F / 72% W 13 G 21 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Mon Apr 21 2025 37F 27F / 70% W 14 G 24 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Mon Apr 21 2025 36F 28F / 66% W 14 G 24 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Mon Apr 21 2025 34F 27F / 65% W 15 G 24 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Mon Apr 21 2025 31F 26F / 58% W 16 G 26 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Mon Apr 21 2025 28F 25F / 51% W 20 G 32 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Mon Apr 21 2025 28F 25F / 50% W 22 G 33 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Mon Apr 21 2025 28F 25F / 44% W 22 G 33 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Mon Apr 21 2025 28F 25F / 43% W 23 G 33 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Tue Apr 22 2025 27F 25F / 38% W 23 G 35 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Tue Apr 22 2025 27F 25F / 36% W 23 G 33 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Tue Apr 22 2025 27F 25F / 41% W 22 G 31 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Tue Apr 22 2025 26F 24F / 40% W 23 G 33 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Tue Apr 22 2025 25F 24F / 44% W 23 G 32 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Tue Apr 22 2025 25F 24F / 41% W 22 G 32 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Tue Apr 22 2025 25F 24F / 38% W 23 G 33 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Tue Apr 22 2025 25F 23F / 36% W 23 G 33 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Tue Apr 22 2025 26F 24F / 35% W 22 G 31 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Tue Apr 22 2025 28F 25F / 36% W 20 G 28 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Tue Apr 22 2025 30F 26F / 37% W 17 G 26 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Tue Apr 22 2025 33F 26F / 39% W 15 G 24 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Tue Apr 22 2025 36F 28F / 37% W 13 G 22 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Tue Apr 22 2025 38F 29F / 42% WSW 11 G 21 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Tue Apr 22 2025 40F 30F / 49% WSW 10 G 18 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Tue Apr 22 2025 41F 31F / 48% WSW 11 G 17 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Tue Apr 22 2025 42F 32F / 51% WSW 10 G 18 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Tue Apr 22 2025 41F 32F / 46% WSW 11 G 20 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Tue Apr 22 2025 38F 32F / 40% WSW 11 G 18 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Tue Apr 22 2025 34F 31F / 40% WSW 11 G 17 MPH 8400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Tue Apr 22 2025 33F 30F / 39% SW 12 G 20 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Tue Apr 22 2025 33F 31F / 38% SW 13 G 20 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Tue Apr 22 2025 34F 30F / 38% SW 11 G 18 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Tue Apr 22 2025 33F 31F / 38% SW 11 G 17 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Wed Apr 23 2025 32F 30F / 37% SW 9 G 15 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Wed Apr 23 2025 34F 32F / 38% SSW 17 G 27 MPH 8600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Wed Apr 23 2025 34F 33F / 39% S 15 G 23 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Wed Apr 23 2025 35F 33F / 37% SSW 14 G 23 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Wed Apr 23 2025 35F 32F / 39% SSW 16 G 25 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Wed Apr 23 2025 33F 31F / 38% SW 20 G 32 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Wed Apr 23 2025 33F 30F / 43% SW 21 G 34 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Wed Apr 23 2025 31F 29F / 50% SW 20 G 32 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Wed Apr 23 2025 31F 30F / 49% SW 18 G 30 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Wed Apr 23 2025 33F 30F / 52% SW 17 G 28 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Wed Apr 23 2025 35F 30F / 54% SSW 15 G 26 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Wed Apr 23 2025 37F 31F / 51% SSW 16 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Wed Apr 23 2025 39F 32F / 48% SSW 15 G 29 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"