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 06Z 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 AM Mon Apr 21 2025 29F 27F / 51% SW 22 G 35 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon Apr 21 2025 30F 27F / 45% SW 23 G 38 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon Apr 21 2025 30F 27F / 44% SSW 25 G 43 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon Apr 21 2025 29F 27F / 45% WSW 27 G 43 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon Apr 21 2025 28F 25F / 54% WSW 23 G 36 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon Apr 21 2025 26F 24F / 55% WSW 23 G 36 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon Apr 21 2025 25F 22F / 76% W 21 G 32 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon Apr 21 2025 25F 22F / 80% W 23 G 37 MPH 7900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon Apr 21 2025 25F 22F / 82% W 25 G 40 MPH 7200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon Apr 21 2025 27F 22F / 87% W 24 G 37 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon Apr 21 2025 28F 22F / 80% W 22 G 34 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon Apr 21 2025 30F 22F / 69% W 19 G 30 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon Apr 21 2025 32F 23F / 68% W 17 G 27 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Mon Apr 21 2025 34F 24F / 67% W 15 G 25 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Mon Apr 21 2025 36F 26F / 60% W 15 G 25 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Mon Apr 21 2025 37F 27F / 63% W 14 G 24 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Mon Apr 21 2025 37F 27F / 66% W 15 G 26 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Mon Apr 21 2025 37F 28F / 62% W 14 G 23 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Mon Apr 21 2025 34F 27F / 63% W 16 G 25 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Mon Apr 21 2025 32F 26F / 55% W 16 G 27 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Mon Apr 21 2025 28F 26F / 49% W 19 G 30 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Mon Apr 21 2025 28F 26F / 40% W 23 G 34 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Mon Apr 21 2025 28F 26F / 39% W 23 G 33 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Mon Apr 21 2025 28F 26F / 39% W 23 G 34 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Tue Apr 22 2025 28F 25F / 37% W 22 G 34 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Tue Apr 22 2025 27F 25F / 39% W 21 G 29 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Tue Apr 22 2025 27F 25F / 38% W 21 G 32 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Tue Apr 22 2025 27F 25F / 41% W 22 G 31 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Tue Apr 22 2025 26F 24F / 42% W 22 G 32 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Tue Apr 22 2025 26F 24F / 43% W 21 G 32 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Tue Apr 22 2025 25F 24F / 44% W 21 G 30 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Tue Apr 22 2025 25F 23F / 46% W 20 G 28 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Tue Apr 22 2025 26F 24F / 43% W 20 G 28 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Tue Apr 22 2025 28F 25F / 47% W 17 G 26 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Tue Apr 22 2025 30F 26F / 42% W 15 G 25 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Tue Apr 22 2025 33F 26F / 42% W 14 G 22 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Tue Apr 22 2025 36F 27F / 41% W 14 G 23 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Tue Apr 22 2025 38F 29F / 41% W 14 G 24 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Tue Apr 22 2025 40F 31F / 50% WSW 13 G 21 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Tue Apr 22 2025 41F 31F / 51% WSW 12 G 22 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Tue Apr 22 2025 42F 32F / 51% WSW 11 G 21 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Tue Apr 22 2025 41F 32F / 54% WSW 11 G 18 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Tue Apr 22 2025 38F 32F / 54% WSW 12 G 19 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Tue Apr 22 2025 35F 31F / 52% WSW 11 G 17 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Tue Apr 22 2025 33F 31F / 43% WSW 13 G 19 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Tue Apr 22 2025 33F 31F / 35% SW 14 G 22 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Tue Apr 22 2025 34F 32F / 34% WSW 15 G 24 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Tue Apr 22 2025 33F 32F / 45% WSW 14 G 23 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Wed Apr 23 2025 33F 31F / 48% WSW 14 G 23 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"