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 19-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 Wed Jun 18 2025 62F 55F / 23% WSW 8 G 14 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed Jun 18 2025 59F 54F / 32% WSW 10 G 16 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Wed Jun 18 2025 55F 52F / 36% WSW 12 G 16 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Wed Jun 18 2025 53F 51F / 35% SW 12 G 17 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Wed Jun 18 2025 53F 51F / 22% SW 15 G 22 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Wed Jun 18 2025 53F 52F / 22% SW 15 G 21 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Thu Jun 19 2025 53F 53F / 18% SW 15 G 22 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Thu Jun 19 2025 53F 53F / 17% SW 16 G 24 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Thu Jun 19 2025 53F 52F / 20% SSW 17 G 29 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Thu Jun 19 2025 51F 52F / 21% S 19 G 31 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Thu Jun 19 2025 50F 51F / 17% S 20 G 35 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Thu Jun 19 2025 51F 51F / 20% SSW 25 G 41 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Thu Jun 19 2025 49F 50F / 23% SSW 24 G 39 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Thu Jun 19 2025 50F 50F / 23% SW 23 G 37 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Thu Jun 19 2025 51F 51F / 16% SW 22 G 34 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Thu Jun 19 2025 52F 51F / 20% SSW 18 G 32 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Thu Jun 19 2025 56F 52F / 19% S 16 G 31 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Thu Jun 19 2025 61F 54F / 12% S 15 G 31 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Thu Jun 19 2025 65F 54F / 11% SSW 13 G 29 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Thu Jun 19 2025 67F 56F / 11% SSW 16 G 36 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Thu Jun 19 2025 69F 57F / 8% SSW 16 G 34 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Thu Jun 19 2025 69F 58F / 4% SW 16 G 35 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Thu Jun 19 2025 69F 59F / 6% SSW 15 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Thu Jun 19 2025 70F 59F / 3% SW 16 G 31 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Thu Jun 19 2025 67F 60F / 5% SW 18 G 35 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Thu Jun 19 2025 64F 59F / 8% SW 18 G 37 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Thu Jun 19 2025 60F 56F / 11% SW 21 G 40 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Thu Jun 19 2025 57F 54F / 6% SSW 22 G 42 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Thu Jun 19 2025 55F 53F / 4% SSW 24 G 44 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Thu Jun 19 2025 54F 51F / 8% SSW 24 G 47 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Fri Jun 20 2025 53F 50F / 19% SSW 26 G 49 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Fri Jun 20 2025 52F 49F / 27% SSW 28 G 51 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Fri Jun 20 2025 51F 48F / 28% SSW 29 G 52 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Fri Jun 20 2025 49F 46F / 25% SSW 30 G 56 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Fri Jun 20 2025 48F 46F / 28% SW 30 G 54 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Fri Jun 20 2025 47F 45F / 28% SW 25 G 43 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Fri Jun 20 2025 46F 44F / 33% SW 23 G 39 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Fri Jun 20 2025 47F 45F / 34% SW 22 G 34 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Fri Jun 20 2025 49F 47F / 32% SW 20 G 32 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Fri Jun 20 2025 50F 48F / 36% SSW 22 G 37 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Fri Jun 20 2025 52F 47F / 32% SSW 19 G 36 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Fri Jun 20 2025 57F 47F / 33% SSW 19 G 42 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Fri Jun 20 2025 60F 50F / 29% SSW 18 G 40 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Fri Jun 20 2025 60F 51F / 22% SSW 19 G 40 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Fri Jun 20 2025 62F 51F / 24% SSW 18 G 39 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Fri Jun 20 2025 62F 53F / 23% SSW 17 G 40 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Fri Jun 20 2025 63F 54F / 24% SSW 18 G 38 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Fri Jun 20 2025 64F 54F / 21% SSW 18 G 36 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Fri Jun 20 2025 63F 54F / 22% SSW 21 G 42 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"