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 18Z 24-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 PM Tue Jun 24 2025 52F 43F / 30% S 8 G 17 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue Jun 24 2025 52F 44F / 26% SSW 7 G 16 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue Jun 24 2025 55F 45F / 17% SSW 9 G 20 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue Jun 24 2025 55F 45F / 20% SSW 10 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue Jun 24 2025 55F 46F / 22% SSW 10 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue Jun 24 2025 55F 46F / 22% SW 7 G 15 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue Jun 24 2025 53F 46F / 21% WSW 8 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue Jun 24 2025 50F 45F / 23% WSW 9 G 16 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue Jun 24 2025 47F 43F / 28% W 11 G 18 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue Jun 24 2025 43F 41F / 28% W 11 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue Jun 24 2025 42F 41F / 29% W 10 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue Jun 24 2025 42F 41F / 28% W 10 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed Jun 25 2025 42F 40F / 29% WNW 11 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed Jun 25 2025 41F 40F / 29% SSW 11 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed Jun 25 2025 40F 40F / 30% WSW 11 G 14 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed Jun 25 2025 40F 40F / 28% WSW 13 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed Jun 25 2025 41F 40F / 26% WSW 14 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed Jun 25 2025 41F 40F / 29% WSW 12 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed Jun 25 2025 40F 39F / 27% WSW 12 G 17 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed Jun 25 2025 41F 39F / 33% W 13 G 18 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed Jun 25 2025 41F 40F / 30% W 13 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed Jun 25 2025 43F 40F / 33% W 13 G 19 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed Jun 25 2025 46F 41F / 32% W 10 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed Jun 25 2025 50F 42F / 30% W 9 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed Jun 25 2025 53F 44F / 28% W 10 G 18 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed Jun 25 2025 54F 45F / 27% W 12 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed Jun 25 2025 55F 46F / 30% W 11 G 21 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed Jun 25 2025 57F 47F / 27% WNW 13 G 21 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed Jun 25 2025 56F 47F / 23% W 12 G 20 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed Jun 25 2025 56F 47F / 22% W 12 G 21 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed Jun 25 2025 53F 47F / 26% W 13 G 21 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed Jun 25 2025 51F 46F / 24% W 15 G 23 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed Jun 25 2025 47F 43F / 24% W 16 G 25 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Wed Jun 25 2025 44F 42F / 22% W 17 G 26 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Wed Jun 25 2025 43F 42F / 20% W 18 G 26 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Wed Jun 25 2025 43F 42F / 25% W 19 G 25 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Thu Jun 26 2025 43F 42F / 19% WNW 19 G 27 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Thu Jun 26 2025 45F 44F / 18% WNW 20 G 27 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Thu Jun 26 2025 45F 45F / 20% WNW 20 G 27 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Thu Jun 26 2025 44F 44F / 20% WNW 20 G 27 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Thu Jun 26 2025 45F 44F / 24% W 20 G 26 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Thu Jun 26 2025 44F 44F / 18% W 18 G 25 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Thu Jun 26 2025 44F 44F / 18% W 16 G 20 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Thu Jun 26 2025 44F 44F / 21% WSW 16 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Thu Jun 26 2025 44F 45F / 16% WSW 16 G 22 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Thu Jun 26 2025 47F 46F / 23% WSW 15 G 22 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Thu Jun 26 2025 50F 46F / 18% SW 12 G 21 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Thu Jun 26 2025 56F 47F / 19% SW 12 G 21 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Thu Jun 26 2025 60F 50F / 17% SW 11 G 22 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"