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 23-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 Wed Apr 23 2025 31F 29F / 37% SSW 20 G 33 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Apr 23 2025 31F 29F / 43% SSW 17 G 27 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Apr 23 2025 31F 29F / 45% SSW 19 G 32 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Apr 23 2025 32F 29F / 47% SSW 19 G 32 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Apr 23 2025 34F 29F / 52% SSW 18 G 32 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Apr 23 2025 37F 30F / 52% SSW 16 G 30 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Apr 23 2025 38F 30F / 55% SSW 15 G 29 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Apr 23 2025 39F 30F / 67% SSW 17 G 31 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Apr 23 2025 42F 33F / 52% SSW 13 G 27 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Apr 23 2025 44F 34F / 51% SSW 13 G 28 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Apr 23 2025 43F 35F / 45% SW 15 G 29 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Apr 23 2025 44F 36F / 48% SW 15 G 29 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Apr 23 2025 39F 32F / 79% W 17 G 30 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Apr 23 2025 34F 31F / 73% S 12 G 25 MPH 9400 FT 9:1 / 11% 0.02" / 0.2" 0.02" / 0.2" 14 08 PM Wed Apr 23 2025 34F 29F / 83% W 12 G 20 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 15 09 PM Wed Apr 23 2025 33F 30F / 71% W 10 G 16 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 16 10 PM Wed Apr 23 2025 32F 28F / 85% NW 9 G 16 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 17 11 PM Wed Apr 23 2025 31F 27F / 90% WNW 9 G 14 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 18 12 AM Thu Apr 24 2025 31F 27F / 92% SSE 8 G 16 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 19 01 AM Thu Apr 24 2025 31F 26F / 96% SSE 9 G 19 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 20 02 AM Thu Apr 24 2025 31F 28F / 82% WSW 12 G 19 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 21 03 AM Thu Apr 24 2025 32F 28F / 79% WSW 13 G 20 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 22 04 AM Thu Apr 24 2025 33F 28F / 72% WSW 14 G 22 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 23 05 AM Thu Apr 24 2025 33F 28F / 72% WSW 14 G 22 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 24 06 AM Thu Apr 24 2025 32F 28F / 71% WSW 15 G 23 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 25 07 AM Thu Apr 24 2025 32F 28F / 70% WSW 13 G 19 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 26 08 AM Thu Apr 24 2025 31F 27F / 85% WSW 11 G 18 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 27 09 AM Thu Apr 24 2025 33F 28F / 82% SSW 13 G 21 MPH 9000 FT 9:1 / 11% 0.01" / 0.1" 0.03" / 0.3" 28 10 AM Thu Apr 24 2025 34F 28F / 76% WSW 13 G 24 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.03" / 0.3" 29 11 AM Thu Apr 24 2025 36F 29F / 76% SW 12 G 20 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 30 12 PM Thu Apr 24 2025 38F 31F / 79% SSW 11 G 22 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.03" / 0.3" 31 01 PM Thu Apr 24 2025 40F 31F / 77% SSW 12 G 24 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.03" / 0.3" 32 02 PM Thu Apr 24 2025 42F 32F / 65% SSW 12 G 23 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 33 03 PM Thu Apr 24 2025 41F 33F / 67% SSW 10 G 22 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 34 04 PM Thu Apr 24 2025 38F 31F / 62% SSW 14 G 27 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 35 05 PM Thu Apr 24 2025 39F 33F / 60% SW 13 G 25 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 36 06 PM Thu Apr 24 2025 40F 33F / 66% SW 10 G 19 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 37 07 PM Thu Apr 24 2025 40F 35F / 74% WSW 7 G 15 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 38 08 PM Thu Apr 24 2025 37F 34F / 64% SSW 11 G 18 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 39 09 PM Thu Apr 24 2025 33F 32F / 64% SSW 10 G 16 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 40 10 PM Thu Apr 24 2025 33F 32F / 68% S 11 G 20 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.03" / 0.3" 41 11 PM Thu Apr 24 2025 34F 33F / 56% SE 11 G 20 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.03" / 0.3" 42 12 AM Fri Apr 25 2025 35F 32F / 57% SSE 13 G 23 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.03" / 0.3" 43 01 AM Fri Apr 25 2025 34F 31F / 74% SE 15 G 29 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 44 02 AM Fri Apr 25 2025 34F 30F / 81% SE 15 G 29 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.03" / 0.3" 45 03 AM Fri Apr 25 2025 34F 30F / 82% SE 14 G 29 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.03" / 0.3" 46 04 AM Fri Apr 25 2025 34F 31F / 78% SE 14 G 28 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 47 05 AM Fri Apr 25 2025 34F 31F / 73% SE 14 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3" 48 06 AM Fri Apr 25 2025 33F 31F / 72% SSE 14 G 27 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.03" / 0.3"