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 19-Jul-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 Sat Jul 19 2025 47F 46F / 67% W 13 G 18 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat Jul 19 2025 49F 48F / 38% WSW 11 G 16 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat Jul 19 2025 49F 47F / 52% S 14 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat Jul 19 2025 50F 47F / 45% SE 12 G 23 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat Jul 19 2025 49F 46F / 42% ESE 14 G 22 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat Jul 19 2025 48F 45F / 57% SSE 8 G 12 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat Jul 19 2025 47F 45F / 53% W 10 G 14 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat Jul 19 2025 46F 45F / 69% W 11 G 17 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat Jul 19 2025 47F 45F / 64% WSW 12 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat Jul 19 2025 48F 45F / 71% W 13 G 17 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat Jul 19 2025 51F 45F / 68% W 10 G 18 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat Jul 19 2025 56F 48F / 58% W 10 G 17 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat Jul 19 2025 60F 50F / 48% W 11 G 18 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat Jul 19 2025 62F 52F / 41% WNW 12 G 19 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat Jul 19 2025 63F 53F / 38% W 12 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat Jul 19 2025 63F 53F / 38% W 13 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat Jul 19 2025 63F 53F / 38% W 10 G 18 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat Jul 19 2025 61F 53F / 33% WNW 15 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat Jul 19 2025 60F 53F / 32% WNW 13 G 20 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat Jul 19 2025 58F 53F / 30% W 14 G 20 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat Jul 19 2025 54F 51F / 29% W 16 G 23 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat Jul 19 2025 51F 50F / 27% W 18 G 24 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat Jul 19 2025 51F 50F / 26% W 17 G 23 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat Jul 19 2025 51F 50F / 30% W 17 G 24 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun Jul 20 2025 51F 50F / 27% W 20 G 27 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun Jul 20 2025 50F 49F / 21% W 20 G 28 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun Jul 20 2025 50F 49F / 21% W 18 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun Jul 20 2025 48F 48F / 30% SW 18 G 25 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun Jul 20 2025 47F 48F / 38% SW 17 G 26 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun Jul 20 2025 48F 48F / 43% SW 18 G 27 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun Jul 20 2025 47F 47F / 41% SW 18 G 27 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun Jul 20 2025 47F 46F / 43% SSW 20 G 31 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun Jul 20 2025 49F 49F / 40% SW 20 G 32 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun Jul 20 2025 52F 49F / 43% SSW 19 G 31 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun Jul 20 2025 54F 49F / 40% SSW 17 G 31 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun Jul 20 2025 58F 51F / 31% SSW 16 G 30 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun Jul 20 2025 61F 52F / 37% SSW 14 G 28 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sun Jul 20 2025 65F 57F / 25% SSW 14 G 27 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sun Jul 20 2025 66F 57F / 22% SW 12 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sun Jul 20 2025 67F 59F / 24% SW 12 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sun Jul 20 2025 67F 58F / 22% SW 12 G 24 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sun Jul 20 2025 66F 57F / 17% WSW 10 G 19 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sun Jul 20 2025 65F 58F / 8% SW 14 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sun Jul 20 2025 62F 58F / 12% SW 17 G 27 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sun Jul 20 2025 59F 56F / 27% WSW 15 G 22 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sun Jul 20 2025 55F 54F / 24% WSW 14 G 24 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sun Jul 20 2025 54F 53F / 31% WSW 17 G 29 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sun Jul 20 2025 54F 53F / 34% SW 16 G 28 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Mon Jul 21 2025 53F 52F / 28% SSW 16 G 28 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"