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 27-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 Sun Apr 27 2025 32F 29F / 38% SSW 14 G 26 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sun Apr 27 2025 29F 28F / 39% SSW 14 G 25 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sun Apr 27 2025 28F 27F / 45% S 10 G 22 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sun Apr 27 2025 28F 26F / 48% SSE 12 G 25 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sun Apr 27 2025 27F 24F / 51% SSE 14 G 29 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sun Apr 27 2025 25F 23F / 57% SSE 15 G 32 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sun Apr 27 2025 25F 21F / 57% SSE 16 G 31 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sun Apr 27 2025 25F 20F / 61% SE 12 G 30 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sun Apr 27 2025 25F 20F / 68% SE 12 G 29 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sun Apr 27 2025 27F 20F / 79% SE 9 G 28 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sun Apr 27 2025 27F 20F / 90% SE 8 G 24 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sun Apr 27 2025 28F 20F / 93% SE 12 G 29 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sun Apr 27 2025 28F 19F / 94% SSE 11 G 32 MPH 6600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sun Apr 27 2025 28F 19F / 77% S 12 G 34 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sun Apr 27 2025 28F 20F / 74% S 13 G 31 MPH 6600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sun Apr 27 2025 29F 21F / 63% S 13 G 29 MPH 6300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sun Apr 27 2025 30F 21F / 56% S 12 G 28 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sun Apr 27 2025 30F 22F / 56% S 11 G 28 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sun Apr 27 2025 29F 22F / 58% S 14 G 28 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sun Apr 27 2025 26F 20F / 76% SSW 12 G 25 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sun Apr 27 2025 23F 18F / 72% S 13 G 28 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sun Apr 27 2025 22F 17F / 77% S 14 G 30 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sun Apr 27 2025 21F 16F / 82% S 13 G 28 MPH 6500 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sun Apr 27 2025 20F 15F / 80% SSW 12 G 23 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Mon Apr 28 2025 20F 16F / 81% SW 14 G 25 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Mon Apr 28 2025 19F 15F / 92% SSW 14 G 25 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Mon Apr 28 2025 20F 15F / 95% SSW 13 G 21 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Mon Apr 28 2025 21F 15F / 88% SW 11 G 19 MPH 6400 FT 13:1 / 8% 0.01" / 0.1" 0.01" / 0.1" 28 04 AM Mon Apr 28 2025 20F 15F / 90% SW 10 G 15 MPH 6300 FT 14:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 29 05 AM Mon Apr 28 2025 19F 15F / 89% S 9 G 15 MPH 6400 FT 13:1 / 8% 0.01" / 0.1" 0.02" / 0.2" 30 06 AM Mon Apr 28 2025 19F 15F / 92% S 10 G 15 MPH 6200 FT 14:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 31 07 AM Mon Apr 28 2025 20F 15F / 94% S 9 G 14 MPH 6200 FT 16:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 32 08 AM Mon Apr 28 2025 22F 17F / 84% S 9 G 14 MPH 6300 FT 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 33 09 AM Mon Apr 28 2025 22F 18F / 87% W 7 G 9 MPH 6300 FT 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 34 10 AM Mon Apr 28 2025 25F 18F / 90% NNW 7 G 11 MPH 6600 FT 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 35 11 AM Mon Apr 28 2025 27F 20F / 93% N 6 G 10 MPH 6900 FT 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 36 12 PM Mon Apr 28 2025 27F 21F / 90% N 8 G 15 MPH 7300 FT 12:1 / 8% 0.01" / 0.1" 0.03" / 0.3" 37 01 PM Mon Apr 28 2025 29F 23F / 93% NNW 5 G 11 MPH 7400 FT 14:1 / 7% 0.00" / 0.0" 0.03" / 0.3" 38 02 PM Mon Apr 28 2025 31F 24F / 94% NW 8 G 17 MPH 7400 FT 15:1 / 7% 0.00" / 0.0" 0.03" / 0.3" 39 03 PM Mon Apr 28 2025 32F 25F / 93% NW 14 G 20 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 40 04 PM Mon Apr 28 2025 32F 24F / 89% WNW 13 G 22 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 41 05 PM Mon Apr 28 2025 33F 25F / 89% NW 13 G 23 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.03" / 0.3" 42 06 PM Mon Apr 28 2025 31F 25F / 96% WNW 14 G 23 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.03" / 0.3" 43 07 PM Mon Apr 28 2025 29F 23F / 100% WNW 11 G 17 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 44 08 PM Mon Apr 28 2025 27F 22F / 100% NW 10 G 15 MPH 7900 FT 13:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 45 09 PM Mon Apr 28 2025 25F 22F / 97% NNW 9 G 15 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 46 10 PM Mon Apr 28 2025 24F 21F / 87% NE 9 G 14 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 47 11 PM Mon Apr 28 2025 23F 22F / 67% WNW 8 G 12 MPH 7900 FT 13:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 48 12 AM Tue Apr 29 2025 22F 20F / 77% N 8 G 16 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3"