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 21-Jun-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 Sat Jun 21 2025 38F 35F / 60% SSW 19 G 34 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat Jun 21 2025 41F 37F / 48% SSW 24 G 44 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat Jun 21 2025 45F 40F / 43% SSW 28 G 52 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat Jun 21 2025 46F 41F / 36% SSW 29 G 56 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat Jun 21 2025 47F 40F / 42% SSW 27 G 53 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat Jun 21 2025 50F 41F / 38% SSW 25 G 50 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat Jun 21 2025 52F 41F / 39% SSW 24 G 52 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat Jun 21 2025 51F 42F / 38% SSW 23 G 52 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat Jun 21 2025 53F 42F / 41% SSW 21 G 47 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat Jun 21 2025 54F 43F / 41% SSW 19 G 45 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat Jun 21 2025 54F 44F / 36% SSW 18 G 43 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat Jun 21 2025 56F 46F / 32% SSW 18 G 42 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat Jun 21 2025 55F 46F / 38% SSW 13 G 31 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat Jun 21 2025 50F 44F / 47% SSW 12 G 25 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat Jun 21 2025 48F 43F / 44% SSW 16 G 30 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat Jun 21 2025 41F 36F / 69% WSW 13 G 26 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat Jun 21 2025 35F 32F / 61% W 11 G 23 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat Jun 21 2025 33F 28F / 67% W 12 G 23 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun Jun 22 2025 31F 26F / 74% WNW 11 G 24 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun Jun 22 2025 29F 24F / 83% WNW 12 G 30 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun Jun 22 2025 30F 23F / 94% WNW 13 G 27 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun Jun 22 2025 30F 24F / 96% W 12 G 25 MPH 7400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun Jun 22 2025 29F 23F / 100% W 12 G 24 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun Jun 22 2025 30F 24F / 100% WSW 13 G 23 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun Jun 22 2025 28F 24F / 99% WSW 13 G 20 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun Jun 22 2025 28F 23F / 97% WSW 15 G 23 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun Jun 22 2025 29F 23F / 99% WSW 13 G 23 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun Jun 22 2025 29F 23F / 97% WSW 15 G 25 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun Jun 22 2025 30F 23F / 94% WSW 11 G 20 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun Jun 22 2025 32F 23F / 77% WSW 12 G 21 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun Jun 22 2025 35F 25F / 76% W 12 G 22 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun Jun 22 2025 36F 26F / 68% W 13 G 23 MPH 7200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sun Jun 22 2025 38F 27F / 64% W 14 G 27 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sun Jun 22 2025 38F 28F / 66% W 14 G 27 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sun Jun 22 2025 39F 29F / 68% W 17 G 27 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sun Jun 22 2025 39F 29F / 57% W 17 G 28 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sun Jun 22 2025 37F 29F / 55% W 17 G 27 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sun Jun 22 2025 38F 32F / 50% W 15 G 24 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sun Jun 22 2025 35F 32F / 47% W 15 G 21 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sun Jun 22 2025 32F 31F / 41% W 16 G 21 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sun Jun 22 2025 32F 32F / 40% W 16 G 23 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sun Jun 22 2025 32F 31F / 40% W 16 G 23 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Mon Jun 23 2025 32F 31F / 42% W 18 G 25 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Mon Jun 23 2025 31F 31F / 44% W 18 G 24 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Mon Jun 23 2025 32F 31F / 41% W 16 G 23 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Mon Jun 23 2025 32F 32F / 37% W 18 G 25 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Mon Jun 23 2025 33F 33F / 35% WSW 17 G 23 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Mon Jun 23 2025 33F 34F / 35% W 16 G 21 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Mon Jun 23 2025 33F 34F / 35% WSW 13 G 17 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"