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 26-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 25 2025 54F 48F / 21% WNW 9 G 15 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed Jun 25 2025 51F 47F / 22% WNW 10 G 16 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Wed Jun 25 2025 48F 44F / 30% W 11 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Wed Jun 25 2025 45F 43F / 30% W 12 G 18 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Wed Jun 25 2025 45F 43F / 30% W 13 G 18 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Wed Jun 25 2025 44F 43F / 32% WSW 13 G 19 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Thu Jun 26 2025 44F 43F / 32% WSW 15 G 22 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Thu Jun 26 2025 43F 42F / 32% WSW 16 G 24 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Thu Jun 26 2025 43F 42F / 29% WSW 16 G 22 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Thu Jun 26 2025 44F 42F / 26% W 17 G 22 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Thu Jun 26 2025 44F 43F / 27% WNW 17 G 24 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Thu Jun 26 2025 44F 43F / 26% WNW 17 G 23 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Thu Jun 26 2025 43F 42F / 28% WNW 16 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Thu Jun 26 2025 43F 42F / 31% W 16 G 20 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Thu Jun 26 2025 45F 43F / 26% W 16 G 20 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Thu Jun 26 2025 46F 44F / 30% WSW 14 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Thu Jun 26 2025 49F 45F / 29% WSW 12 G 18 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Thu Jun 26 2025 54F 47F / 22% WSW 9 G 16 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Thu Jun 26 2025 57F 48F / 19% WSW 9 G 15 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Thu Jun 26 2025 59F 50F / 22% WSW 9 G 17 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Thu Jun 26 2025 61F 51F / 17% WSW 10 G 18 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Thu Jun 26 2025 62F 52F / 15% SW 10 G 19 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Thu Jun 26 2025 62F 52F / 14% SW 10 G 19 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Thu Jun 26 2025 63F 53F / 13% SW 11 G 19 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Thu Jun 26 2025 59F 53F / 16% SSW 11 G 20 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Thu Jun 26 2025 58F 53F / 14% SW 12 G 20 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Thu Jun 26 2025 54F 50F / 19% SW 14 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Thu Jun 26 2025 51F 49F / 15% SW 15 G 21 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Thu Jun 26 2025 51F 49F / 13% SSW 15 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Thu Jun 26 2025 51F 50F / 18% SW 15 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Fri Jun 27 2025 50F 49F / 15% SW 16 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Fri Jun 27 2025 50F 49F / 15% SW 18 G 28 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Fri Jun 27 2025 49F 48F / 24% SSW 18 G 29 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Fri Jun 27 2025 47F 47F / 22% SW 18 G 27 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Fri Jun 27 2025 47F 47F / 22% SW 19 G 29 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Fri Jun 27 2025 46F 46F / 26% SW 19 G 31 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Fri Jun 27 2025 45F 46F / 26% SW 17 G 25 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Fri Jun 27 2025 46F 47F / 28% SW 17 G 23 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Fri Jun 27 2025 48F 49F / 23% SW 15 G 22 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Fri Jun 27 2025 51F 51F / 19% SW 14 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Fri Jun 27 2025 55F 51F / 18% WSW 11 G 19 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Fri Jun 27 2025 59F 52F / 10% SW 9 G 17 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Fri Jun 27 2025 64F 55F / 7% WSW 8 G 17 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Fri Jun 27 2025 64F 56F / 8% SW 10 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Fri Jun 27 2025 65F 55F / 10% SW 11 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Fri Jun 27 2025 65F 56F / 10% SW 13 G 24 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Fri Jun 27 2025 64F 56F / 8% WSW 12 G 23 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Fri Jun 27 2025 65F 57F / 7% SW 14 G 27 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Fri Jun 27 2025 63F 57F / 15% W 9 G 15 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"