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-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 Sat Apr 26 2025 28F 25F / 47% S 15 G 28 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat Apr 26 2025 27F 25F / 38% S 14 G 26 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat Apr 26 2025 28F 25F / 39% SSE 16 G 32 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat Apr 26 2025 30F 26F / 42% SSE 16 G 34 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat Apr 26 2025 33F 27F / 50% SSE 14 G 31 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat Apr 26 2025 35F 27F / 56% SSE 13 G 31 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat Apr 26 2025 38F 29F / 57% SSE 11 G 29 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat Apr 26 2025 40F 30F / 49% SSE 11 G 30 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat Apr 26 2025 41F 31F / 40% SSE 11 G 29 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat Apr 26 2025 42F 33F / 36% SSE 9 G 24 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat Apr 26 2025 43F 34F / 34% SSE 8 G 25 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat Apr 26 2025 42F 34F / 32% S 10 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat Apr 26 2025 40F 35F / 27% S 10 G 26 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat Apr 26 2025 38F 34F / 31% S 11 G 25 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat Apr 26 2025 37F 33F / 29% S 11 G 23 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat Apr 26 2025 36F 33F / 30% S 13 G 25 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat Apr 26 2025 35F 32F / 31% S 12 G 24 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat Apr 26 2025 32F 29F / 44% SSW 14 G 28 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun Apr 27 2025 30F 28F / 54% SSW 12 G 25 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun Apr 27 2025 29F 27F / 50% SSE 13 G 27 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun Apr 27 2025 28F 26F / 49% SE 15 G 30 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun Apr 27 2025 28F 25F / 50% SSE 15 G 32 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun Apr 27 2025 27F 24F / 51% SSE 16 G 34 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun Apr 27 2025 26F 23F / 62% SSE 17 G 35 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun Apr 27 2025 25F 21F / 66% SSE 14 G 34 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun Apr 27 2025 24F 19F / 68% SSE 14 G 34 MPH 6800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun Apr 27 2025 26F 19F / 81% SE 12 G 32 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun Apr 27 2025 27F 20F / 89% SE 12 G 34 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun Apr 27 2025 27F 20F / 88% SE 12 G 31 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun Apr 27 2025 28F 20F / 92% SE 11 G 31 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun Apr 27 2025 29F 20F / 92% SSE 10 G 30 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun Apr 27 2025 28F 20F / 84% S 11 G 31 MPH 6400 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sun Apr 27 2025 30F 21F / 74% S 12 G 31 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sun Apr 27 2025 30F 21F / 73% S 12 G 28 MPH 6500 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sun Apr 27 2025 29F 20F / 75% S 12 G 29 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sun Apr 27 2025 30F 21F / 76% S 13 G 28 MPH 6900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sun Apr 27 2025 27F 19F / 79% S 12 G 30 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sun Apr 27 2025 26F 20F / 79% S 14 G 28 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sun Apr 27 2025 22F 18F / 66% SSW 15 G 32 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sun Apr 27 2025 21F 17F / 77% SSW 19 G 32 MPH 6800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sun Apr 27 2025 22F 17F / 93% S 15 G 26 MPH 6600 FT 11:1 / 9% 0.02" / 0.2" 0.02" / 0.2" 41 11 PM Sun Apr 27 2025 22F 18F / 90% S 17 G 31 MPH 6800 FT 10:1 / 10% 0.03" / 0.3" 0.05" / 0.5" 42 12 AM Mon Apr 28 2025 23F 18F / 92% SSW 15 G 27 MPH 6800 FT 11:1 / 9% 0.07" / 0.8" 0.12" / 1.3" 43 01 AM Mon Apr 28 2025 22F 18F / 95% S 16 G 30 MPH 7000 FT 11:1 / 9% 0.05" / 0.6" 0.17" / 1.9" 44 02 AM Mon Apr 28 2025 23F 18F / 94% S 13 G 24 MPH 7000 FT 9:1 / 11% 0.01" / 0.1" 0.18" / 2.0" 45 03 AM Mon Apr 28 2025 23F 18F / 90% S 11 G 18 MPH 7000 FT 12:1 / 8% 0.02" / 0.2" 0.20" / 2.2" 46 04 AM Mon Apr 28 2025 21F 16F / 95% S 8 G 12 MPH 7000 FT 12:1 / 8% 0.01" / 0.1" 0.21" / 2.3" 47 05 AM Mon Apr 28 2025 21F 16F / 98% ENE 8 G 12 MPH 7100 FT 16:1 / 6% 0.01" / 0.2" 0.22" / 2.5" 48 06 AM Mon Apr 28 2025 20F 17F / 95% NNE 9 G 11 MPH 7000 FT 15:1 / 7% 0.00" / 0.0" 0.22" / 2.5"