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 00Z 25-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 PM Thu Apr 24 2025 34F 29F / 80% W 11 G 19 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Thu Apr 24 2025 32F 28F / 73% W 10 G 20 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Thu Apr 24 2025 31F 29F / 65% SSW 11 G 18 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Thu Apr 24 2025 33F 30F / 65% SW 12 G 18 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Thu Apr 24 2025 33F 30F / 60% WSW 10 G 17 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Thu Apr 24 2025 31F 30F / 59% WSW 7 G 9 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Fri Apr 25 2025 31F 31F / 56% SSE 9 G 15 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Fri Apr 25 2025 32F 31F / 50% SSE 9 G 16 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Fri Apr 25 2025 32F 30F / 63% SE 13 G 22 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Fri Apr 25 2025 32F 29F / 80% SE 15 G 27 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Fri Apr 25 2025 32F 30F / 71% SSE 14 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Fri Apr 25 2025 32F 30F / 72% SSE 14 G 26 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Fri Apr 25 2025 31F 29F / 79% SE 14 G 24 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Fri Apr 25 2025 31F 29F / 82% SE 13 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Fri Apr 25 2025 33F 29F / 76% SE 12 G 25 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Fri Apr 25 2025 34F 30F / 75% SE 11 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Fri Apr 25 2025 35F 30F / 78% SE 10 G 23 MPH 8600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Fri Apr 25 2025 37F 30F / 84% SE 10 G 23 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Fri Apr 25 2025 40F 32F / 79% SE 9 G 24 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Fri Apr 25 2025 43F 34F / 73% SE 6 G 22 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Fri Apr 25 2025 43F 34F / 67% SSE 8 G 20 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Fri Apr 25 2025 45F 35F / 48% S 8 G 22 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Fri Apr 25 2025 44F 35F / 36% S 9 G 22 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Fri Apr 25 2025 44F 35F / 38% S 10 G 24 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Fri Apr 25 2025 41F 36F / 37% S 11 G 23 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Fri Apr 25 2025 39F 35F / 39% S 9 G 21 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Fri Apr 25 2025 38F 34F / 43% SSW 11 G 20 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Fri Apr 25 2025 37F 34F / 37% SSW 11 G 22 MPH 9400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Fri Apr 25 2025 36F 33F / 35% S 11 G 21 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Fri Apr 25 2025 34F 32F / 45% S 11 G 24 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sat Apr 26 2025 33F 31F / 46% S 13 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sat Apr 26 2025 33F 30F / 49% S 14 G 29 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sat Apr 26 2025 32F 29F / 57% S 15 G 29 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sat Apr 26 2025 32F 29F / 52% S 15 G 30 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sat Apr 26 2025 31F 28F / 50% S 16 G 31 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sat Apr 26 2025 29F 28F / 47% S 16 G 30 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sat Apr 26 2025 29F 28F / 43% SSE 16 G 30 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sat Apr 26 2025 30F 28F / 41% SSE 16 G 30 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sat Apr 26 2025 31F 28F / 45% SSE 15 G 29 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sat Apr 26 2025 33F 30F / 51% SSE 16 G 31 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sat Apr 26 2025 35F 30F / 48% SSE 16 G 33 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sat Apr 26 2025 38F 31F / 57% SSE 16 G 38 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Sat Apr 26 2025 39F 32F / 46% SSE 16 G 37 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Sat Apr 26 2025 41F 33F / 43% SSE 13 G 31 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Sat Apr 26 2025 43F 34F / 37% SSE 10 G 28 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Sat Apr 26 2025 45F 35F / 35% SSE 9 G 30 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Sat Apr 26 2025 45F 36F / 39% SSE 10 G 27 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Sat Apr 26 2025 43F 36F / 37% S 10 G 26 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Sat Apr 26 2025 40F 35F / 38% SSE 10 G 26 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"