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 25-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 Wed Jun 25 2025 41F 40F / 37% W 13 G 19 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jun 25 2025 41F 40F / 28% W 11 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jun 25 2025 43F 41F / 28% WSW 10 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jun 25 2025 44F 42F / 18% WSW 10 G 13 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jun 25 2025 47F 42F / 26% WSW 9 G 12 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jun 25 2025 51F 43F / 31% WSW 7 G 13 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jun 25 2025 54F 45F / 20% W 7 G 13 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jun 25 2025 55F 47F / 20% W 7 G 14 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jun 25 2025 58F 48F / 20% WSW 9 G 17 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jun 25 2025 59F 49F / 19% WSW 7 G 15 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jun 25 2025 57F 49F / 24% W 12 G 20 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jun 25 2025 57F 48F / 23% W 11 G 18 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jun 25 2025 54F 48F / 24% W 10 G 19 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jun 25 2025 52F 47F / 27% W 13 G 20 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jun 25 2025 48F 44F / 26% WNW 13 G 20 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jun 25 2025 45F 43F / 30% W 14 G 19 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jun 25 2025 45F 43F / 29% W 13 G 20 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jun 25 2025 44F 43F / 31% W 12 G 16 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jun 26 2025 44F 43F / 30% WSW 15 G 21 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jun 26 2025 44F 43F / 21% W 17 G 23 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jun 26 2025 44F 42F / 29% WNW 19 G 27 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jun 26 2025 44F 42F / 30% WNW 18 G 24 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jun 26 2025 44F 42F / 29% WNW 18 G 24 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jun 26 2025 44F 42F / 27% WNW 19 G 24 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jun 26 2025 43F 42F / 28% WNW 17 G 22 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jun 26 2025 43F 42F / 25% W 16 G 21 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jun 26 2025 44F 42F / 29% W 16 G 21 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jun 26 2025 46F 44F / 32% WSW 14 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jun 26 2025 50F 44F / 28% WSW 11 G 18 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jun 26 2025 54F 46F / 23% WSW 10 G 18 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jun 26 2025 58F 49F / 18% WSW 9 G 20 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jun 26 2025 59F 50F / 18% WSW 11 G 20 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jun 26 2025 61F 50F / 17% WSW 12 G 21 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jun 26 2025 61F 51F / 17% SW 10 G 21 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Jun 26 2025 61F 51F / 16% WSW 11 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Jun 26 2025 62F 53F / 18% SW 11 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Jun 26 2025 59F 52F / 17% SW 12 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Jun 26 2025 59F 55F / 10% SW 13 G 21 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Jun 26 2025 55F 53F / 19% SW 14 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Jun 26 2025 52F 51F / 19% SW 15 G 24 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Jun 26 2025 51F 51F / 19% SW 18 G 27 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Jun 26 2025 51F 50F / 18% SSW 15 G 26 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Jun 27 2025 50F 49F / 22% SSW 19 G 32 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Jun 27 2025 48F 49F / 23% SSW 19 G 33 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Jun 27 2025 49F 48F / 19% SSW 19 G 32 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Jun 27 2025 48F 48F / 20% SW 20 G 32 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Jun 27 2025 48F 47F / 23% SW 18 G 26 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Jun 27 2025 46F 47F / 20% WSW 19 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Jun 27 2025 45F 46F / 23% WSW 18 G 26 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"