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 06Z 20-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 12 AM Fri Jun 20 2025 55F 51F / 9% SW 28 G 53 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Fri Jun 20 2025 53F 50F / 13% SW 29 G 54 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Fri Jun 20 2025 52F 49F / 16% SSW 30 G 57 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Fri Jun 20 2025 51F 47F / 20% SSW 31 G 58 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Fri Jun 20 2025 49F 46F / 21% SSW 32 G 59 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Fri Jun 20 2025 49F 44F / 28% SW 35 G 64 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Fri Jun 20 2025 47F 45F / 25% SW 32 G 55 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Fri Jun 20 2025 47F 45F / 33% SW 27 G 46 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Fri Jun 20 2025 48F 45F / 34% SW 25 G 39 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Fri Jun 20 2025 49F 45F / 34% SSW 22 G 36 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Fri Jun 20 2025 51F 44F / 34% SSW 17 G 32 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Fri Jun 20 2025 56F 46F / 33% SSW 19 G 38 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Fri Jun 20 2025 60F 49F / 32% SSW 21 G 43 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Fri Jun 20 2025 62F 50F / 23% SSW 19 G 40 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Fri Jun 20 2025 62F 50F / 21% SSW 19 G 41 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Fri Jun 20 2025 62F 51F / 17% SSW 19 G 42 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Fri Jun 20 2025 63F 52F / 14% SSW 20 G 43 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Fri Jun 20 2025 64F 53F / 10% SSW 21 G 41 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Fri Jun 20 2025 62F 53F / 13% SSW 22 G 43 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Fri Jun 20 2025 60F 54F / 17% SSW 24 G 46 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Fri Jun 20 2025 56F 52F / 15% SSW 24 G 48 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Fri Jun 20 2025 55F 51F / 17% SSW 29 G 55 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Fri Jun 20 2025 53F 50F / 15% SW 31 G 58 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Fri Jun 20 2025 50F 46F / 32% SW 28 G 53 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sat Jun 21 2025 45F 43F / 45% SW 23 G 44 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sat Jun 21 2025 44F 41F / 45% SSW 26 G 43 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sat Jun 21 2025 43F 40F / 45% SSW 22 G 43 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sat Jun 21 2025 42F 39F / 49% SSW 21 G 36 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sat Jun 21 2025 41F 37F / 53% SSW 20 G 37 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sat Jun 21 2025 41F 38F / 56% SSW 19 G 38 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sat Jun 21 2025 40F 38F / 55% SSW 24 G 41 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sat Jun 21 2025 42F 38F / 49% SSW 25 G 45 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sat Jun 21 2025 44F 40F / 43% SSW 25 G 44 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sat Jun 21 2025 46F 41F / 45% SSW 23 G 48 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sat Jun 21 2025 46F 39F / 50% SSW 20 G 41 MPH 9000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sat Jun 21 2025 49F 40F / 44% SSW 19 G 41 MPH 9400 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sat Jun 21 2025 50F 41F / 45% SSW 19 G 41 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sat Jun 21 2025 52F 43F / 46% SSW 17 G 41 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sat Jun 21 2025 53F 44F / 43% SSW 15 G 35 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sat Jun 21 2025 53F 44F / 47% SSW 12 G 35 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sat Jun 21 2025 53F 44F / 59% SSW 12 G 36 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sat Jun 21 2025 51F 43F / 66% SSW 12 G 26 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sat Jun 21 2025 49F 43F / 68% SSW 13 G 30 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sat Jun 21 2025 44F 39F / 69% WSW 16 G 35 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sat Jun 21 2025 39F 35F / 75% SW 15 G 31 MPH 8400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sat Jun 21 2025 35F 31F / 93% W 15 G 36 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sat Jun 21 2025 33F 28F / 94% WNW 16 G 33 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sat Jun 21 2025 31F 27F / 93% W 15 G 32 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Sun Jun 22 2025 31F 25F / 99% WNW 15 G 29 MPH 8000 FT 11:1 / 9% 0.01" / 0.1" 0.01" / 0.1"