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 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 12 AM Sat Apr 26 2025 33F 30F / 31% SSW 13 G 23 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat Apr 26 2025 31F 28F / 23% SSW 16 G 29 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat Apr 26 2025 31F 28F / 31% SSW 17 G 34 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat Apr 26 2025 30F 27F / 36% SSW 19 G 37 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat Apr 26 2025 29F 26F / 39% SSW 19 G 36 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat Apr 26 2025 29F 25F / 39% SSW 18 G 33 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat Apr 26 2025 28F 24F / 41% SSW 18 G 32 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat Apr 26 2025 27F 24F / 40% S 16 G 32 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat Apr 26 2025 27F 24F / 39% S 18 G 33 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat Apr 26 2025 30F 26F / 43% SSE 16 G 34 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat Apr 26 2025 33F 27F / 50% SSE 13 G 30 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat Apr 26 2025 35F 28F / 58% SSE 14 G 31 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat Apr 26 2025 38F 29F / 50% SSE 12 G 33 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat Apr 26 2025 40F 31F / 47% SSE 11 G 29 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat Apr 26 2025 41F 32F / 39% SSE 11 G 27 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat Apr 26 2025 43F 34F / 35% S 10 G 27 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat Apr 26 2025 43F 34F / 32% SSE 10 G 26 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat Apr 26 2025 43F 35F / 34% S 11 G 27 MPH 8900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat Apr 26 2025 40F 34F / 38% SSW 10 G 21 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat Apr 26 2025 38F 34F / 33% S 9 G 20 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat Apr 26 2025 37F 33F / 34% SSW 10 G 19 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat Apr 26 2025 36F 32F / 38% S 11 G 24 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat Apr 26 2025 33F 30F / 45% S 9 G 20 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat Apr 26 2025 31F 29F / 52% SSW 11 G 24 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun Apr 27 2025 30F 28F / 52% SSE 12 G 25 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun Apr 27 2025 29F 27F / 52% SE 13 G 26 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun Apr 27 2025 29F 26F / 52% SE 15 G 30 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun Apr 27 2025 27F 25F / 51% SSE 15 G 30 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun Apr 27 2025 26F 24F / 56% SSE 16 G 33 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun Apr 27 2025 26F 23F / 59% SSE 18 G 38 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun Apr 27 2025 25F 21F / 64% SSE 15 G 33 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun Apr 27 2025 24F 20F / 61% SSE 13 G 32 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun Apr 27 2025 26F 19F / 77% SSE 13 G 30 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun Apr 27 2025 27F 20F / 85% SE 12 G 33 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun Apr 27 2025 27F 19F / 86% SE 12 G 32 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun Apr 27 2025 28F 19F / 96% SE 13 G 36 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun Apr 27 2025 28F 19F / 93% SSE 12 G 33 MPH 6300 FT 10:1 / 10% 0.01" / 0.1" 0.01" / 0.1" 37 01 PM Sun Apr 27 2025 28F 21F / 91% S 10 G 31 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 38 02 PM Sun Apr 27 2025 29F 21F / 70% SSE 12 G 32 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 39 03 PM Sun Apr 27 2025 30F 22F / 71% S 13 G 28 MPH 6300 FT 12:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 40 04 PM Sun Apr 27 2025 30F 22F / 67% S 13 G 31 MPH 6400 FT 13:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 41 05 PM Sun Apr 27 2025 30F 22F / 73% S 13 G 30 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 42 06 PM Sun Apr 27 2025 28F 22F / 68% SSE 13 G 29 MPH 6900 FT 14:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 43 07 PM Sun Apr 27 2025 25F 19F / 90% S 12 G 28 MPH 6200 FT 12:1 / 8% 0.01" / 0.1" 0.02" / 0.2" 44 08 PM Sun Apr 27 2025 23F 18F / 90% S 12 G 27 MPH 6300 FT 12:1 / 8% 0.01" / 0.1" 0.03" / 0.3" 45 09 PM Sun Apr 27 2025 20F 17F / 87% SSE 15 G 25 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 46 10 PM Sun Apr 27 2025 21F 18F / 79% S 14 G 24 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.03" / 0.3" 47 11 PM Sun Apr 27 2025 22F 18F / 89% S 15 G 28 MPH 6600 FT 11:1 / 9% 0.07" / 0.8" 0.10" / 1.1" 48 12 AM Mon Apr 28 2025 23F 18F / 89% SSE 13 G 27 MPH 6400 FT 11:1 / 9% 0.04" / 0.4" 0.14" / 1.5"