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 18Z 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 12 PM Wed Apr 23 2025 38F 31F / 67% SW 13 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Wed Apr 23 2025 41F 32F / 62% SSW 14 G 28 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Wed Apr 23 2025 42F 33F / 51% S 13 G 28 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Wed Apr 23 2025 43F 34F / 52% SSW 12 G 27 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Wed Apr 23 2025 43F 34F / 48% SW 15 G 29 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Wed Apr 23 2025 43F 35F / 45% SSW 13 G 26 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Wed Apr 23 2025 41F 35F / 47% SW 14 G 27 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Wed Apr 23 2025 39F 34F / 48% SW 13 G 23 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Wed Apr 23 2025 35F 32F / 68% SSW 10 G 18 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Wed Apr 23 2025 34F 31F / 65% SSW 13 G 24 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Wed Apr 23 2025 33F 30F / 72% W 8 G 15 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Wed Apr 23 2025 32F 29F / 75% W 8 G 13 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Thu Apr 24 2025 31F 28F / 81% SE 7 G 13 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Thu Apr 24 2025 31F 29F / 70% S 12 G 20 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Thu Apr 24 2025 32F 29F / 73% SSW 13 G 20 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Thu Apr 24 2025 33F 29F / 63% WSW 18 G 29 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Thu Apr 24 2025 33F 29F / 72% WSW 15 G 23 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Thu Apr 24 2025 33F 29F / 72% WSW 14 G 22 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Thu Apr 24 2025 32F 28F / 69% SW 15 G 23 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Thu Apr 24 2025 32F 28F / 73% SW 13 G 21 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Thu Apr 24 2025 31F 27F / 76% SW 16 G 27 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Thu Apr 24 2025 32F 28F / 89% S 15 G 24 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Thu Apr 24 2025 34F 28F / 73% SW 16 G 28 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Thu Apr 24 2025 37F 29F / 65% SSW 14 G 26 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Thu Apr 24 2025 38F 30F / 66% SSW 14 G 27 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Thu Apr 24 2025 40F 31F / 62% SW 15 G 27 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Thu Apr 24 2025 41F 32F / 58% SW 13 G 27 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Thu Apr 24 2025 39F 30F / 75% WSW 16 G 30 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Thu Apr 24 2025 41F 32F / 73% SW 9 G 20 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Thu Apr 24 2025 41F 32F / 77% WSW 10 G 19 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Thu Apr 24 2025 41F 33F / 75% W 10 G 19 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Thu Apr 24 2025 38F 32F / 81% W 10 G 18 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Thu Apr 24 2025 36F 31F / 89% SW 11 G 18 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Thu Apr 24 2025 34F 31F / 72% W 12 G 19 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Thu Apr 24 2025 34F 31F / 64% SSE 11 G 18 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Thu Apr 24 2025 33F 31F / 66% S 12 G 18 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Fri Apr 25 2025 33F 31F / 69% SSE 13 G 22 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Fri Apr 25 2025 35F 32F / 65% SE 15 G 27 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Fri Apr 25 2025 34F 30F / 81% SE 16 G 30 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Fri Apr 25 2025 34F 31F / 84% SE 15 G 30 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Fri Apr 25 2025 34F 31F / 85% SE 14 G 27 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Fri Apr 25 2025 34F 31F / 78% SE 13 G 27 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Fri Apr 25 2025 34F 31F / 77% SSE 12 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Fri Apr 25 2025 35F 31F / 76% SE 13 G 27 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Fri Apr 25 2025 35F 31F / 75% SE 12 G 31 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Fri Apr 25 2025 35F 32F / 82% SE 12 G 30 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Fri Apr 25 2025 37F 33F / 80% SE 13 G 33 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Fri Apr 25 2025 41F 34F / 77% SE 13 G 32 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Fri Apr 25 2025 44F 35F / 73% SE 11 G 27 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"