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 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 PM Fri Jun 20 2025 63F 55F / 14% SSW 24 G 47 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Jun 20 2025 59F 53F / 13% SSW 25 G 51 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Jun 20 2025 56F 52F / 12% SSW 27 G 51 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Jun 20 2025 55F 51F / 13% SSW 32 G 61 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Jun 20 2025 54F 50F / 11% SW 32 G 59 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Jun 20 2025 53F 48F / 17% SW 36 G 70 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sat Jun 21 2025 45F 43F / 49% SW 30 G 57 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sat Jun 21 2025 43F 41F / 47% SSW 28 G 53 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sat Jun 21 2025 42F 39F / 49% SSW 23 G 43 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sat Jun 21 2025 41F 38F / 46% SSW 19 G 36 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sat Jun 21 2025 40F 38F / 41% SSW 21 G 40 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sat Jun 21 2025 40F 38F / 45% SSW 23 G 42 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sat Jun 21 2025 40F 38F / 37% SSW 26 G 48 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sat Jun 21 2025 42F 39F / 41% SSW 28 G 52 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sat Jun 21 2025 45F 40F / 38% SSW 28 G 49 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sat Jun 21 2025 45F 40F / 39% SSW 27 G 50 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sat Jun 21 2025 46F 40F / 43% SSW 25 G 50 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sat Jun 21 2025 49F 41F / 43% SSW 23 G 51 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sat Jun 21 2025 51F 42F / 36% SSW 22 G 51 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sat Jun 21 2025 52F 42F / 45% SSW 21 G 49 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sat Jun 21 2025 53F 42F / 43% SSW 21 G 47 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sat Jun 21 2025 54F 44F / 35% SSW 20 G 47 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sat Jun 21 2025 56F 45F / 39% S 18 G 43 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sat Jun 21 2025 57F 46F / 37% S 19 G 45 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sat Jun 21 2025 56F 47F / 34% S 18 G 41 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sat Jun 21 2025 53F 47F / 39% S 16 G 40 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sat Jun 21 2025 50F 45F / 37% SSW 21 G 41 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sat Jun 21 2025 42F 36F / 78% WSW 14 G 32 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sat Jun 21 2025 36F 32F / 65% W 12 G 25 MPH 8300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sat Jun 21 2025 34F 28F / 84% W 13 G 27 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sun Jun 22 2025 32F 26F / 96% WNW 13 G 26 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sun Jun 22 2025 31F 25F / 96% W 12 G 25 MPH 7800 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sun Jun 22 2025 32F 26F / 95% WSW 12 G 22 MPH 7600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sun Jun 22 2025 32F 27F / 89% SW 13 G 25 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sun Jun 22 2025 32F 26F / 93% SSW 12 G 28 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sun Jun 22 2025 31F 24F / 97% WSW 12 G 20 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sun Jun 22 2025 29F 23F / 100% WSW 13 G 21 MPH 7600 FT 11:1 / 9% 0.02" / 0.2" 0.02" / 0.2" 37 07 AM Sun Jun 22 2025 28F 23F / 94% WSW 12 G 20 MPH 7800 FT 11:1 / 9% 0.03" / 0.3" 0.05" / 0.5" 38 08 AM Sun Jun 22 2025 29F 24F / 98% WSW 17 G 30 MPH 7700 FT 9:1 / 11% 0.01" / 0.1" 0.06" / 0.6" 39 09 AM Sun Jun 22 2025 28F 24F / 85% WSW 17 G 29 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 0.6" 40 10 AM Sun Jun 22 2025 31F 25F / 81% W 16 G 25 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 0.6" 41 11 AM Sun Jun 22 2025 34F 27F / 73% W 16 G 27 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 0.6" 42 12 PM Sun Jun 22 2025 37F 29F / 67% W 14 G 27 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 0.6" 43 01 PM Sun Jun 22 2025 38F 31F / 62% W 14 G 25 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 0.6" 44 02 PM Sun Jun 22 2025 40F 32F / 58% WSW 14 G 24 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 0.6" 45 03 PM Sun Jun 22 2025 42F 35F / 48% W 12 G 21 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 0.6" 46 04 PM Sun Jun 22 2025 43F 35F / 55% WSW 10 G 20 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 0.6" 47 05 PM Sun Jun 22 2025 43F 35F / 49% W 12 G 21 MPH 8200 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 0.6" 48 06 PM Sun Jun 22 2025 42F 36F / 50% W 12 G 21 MPH 8300 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 0.6"