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-Aug-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 Mon Aug 25 2025 58F 52F / 66% WSW 4 G 9 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Mon Aug 25 2025 56F 51F / 75% SW 8 G 15 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Mon Aug 25 2025 51F 48F / 95% SW 9 G 14 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Mon Aug 25 2025 51F 48F / 88% SW 12 G 18 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Mon Aug 25 2025 49F 47F / 95% WSW 10 G 15 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Mon Aug 25 2025 48F 47F / 100% SSW 13 G 19 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Tue Aug 26 2025 49F 47F / 100% SW 13 G 21 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Tue Aug 26 2025 49F 47F / 88% SW 12 G 19 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Tue Aug 26 2025 50F 47F / 97% SSW 8 G 16 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Tue Aug 26 2025 50F 47F / 89% SW 9 G 14 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Tue Aug 26 2025 50F 47F / 82% SW 8 G 15 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Tue Aug 26 2025 50F 47F / 93% WSW 9 G 15 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Tue Aug 26 2025 48F 46F / 95% SW 11 G 18 MPH 14400 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 13 07 AM Tue Aug 26 2025 47F 44F / 100% S 10 G 19 MPH 14500 FT 0:1 / -% 0.03" / 0.0" 0.04" / 0.0" 14 08 AM Tue Aug 26 2025 48F 44F / 100% WSW 7 G 13 MPH 14500 FT 0:1 / -% 0.06" / 0.0" 0.10" / 0.0" 15 09 AM Tue Aug 26 2025 49F 45F / 100% SSE 10 G 19 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 16 10 AM Tue Aug 26 2025 50F 45F / 95% S 9 G 20 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 17 11 AM Tue Aug 26 2025 52F 45F / 100% S 11 G 21 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 18 12 PM Tue Aug 26 2025 53F 46F / 98% S 12 G 22 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 19 01 PM Tue Aug 26 2025 54F 47F / 92% S 9 G 20 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 20 02 PM Tue Aug 26 2025 53F 47F / 87% S 9 G 18 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 21 03 PM Tue Aug 26 2025 52F 46F / 88% SSE 8 G 22 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 22 04 PM Tue Aug 26 2025 53F 47F / 93% S 10 G 21 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 23 05 PM Tue Aug 26 2025 51F 46F / 100% S 11 G 24 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.10" / 0.0" 24 06 PM Tue Aug 26 2025 46F 44F / 92% SSE 13 G 27 MPH 14800 FT 0:1 / -% 0.14" / 0.0" 0.24" / 0.0" 25 07 PM Tue Aug 26 2025 48F 44F / 100% SSW 14 G 28 MPH 14300 FT 0:1 / -% 0.04" / 0.0" 0.28" / 0.0" 26 08 PM Tue Aug 26 2025 47F 43F / 98% SW 15 G 27 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 27 09 PM Tue Aug 26 2025 46F 42F / 100% SW 15 G 28 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 28 10 PM Tue Aug 26 2025 47F 42F / 100% SSW 15 G 28 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 29 11 PM Tue Aug 26 2025 46F 42F / 100% S 17 G 31 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 30 12 AM Wed Aug 27 2025 45F 42F / 95% S 18 G 31 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 31 01 AM Wed Aug 27 2025 45F 41F / 100% SSW 18 G 35 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 32 02 AM Wed Aug 27 2025 46F 41F / 100% S 19 G 35 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.28" / 0.0" 33 03 AM Wed Aug 27 2025 45F 40F / 100% SSW 19 G 32 MPH 14000 FT 0:1 / -% 0.11" / 0.0" 0.39" / 0.0" 34 04 AM Wed Aug 27 2025 45F 40F / 100% SW 17 G 30 MPH 13900 FT 0:1 / -% 0.02" / 0.0" 0.41" / 0.0" 35 05 AM Wed Aug 27 2025 45F 40F / 100% SW 16 G 30 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.41" / 0.0" 36 06 AM Wed Aug 27 2025 44F 40F / 100% SW 16 G 29 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.41" / 0.0" 37 07 AM Wed Aug 27 2025 45F 41F / 100% SW 16 G 25 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.41" / 0.0" 38 08 AM Wed Aug 27 2025 44F 41F / 100% SW 15 G 28 MPH 13500 FT 0:1 / -% 0.03" / 0.0" 0.44" / 0.0" 39 09 AM Wed Aug 27 2025 44F 41F / 100% SW 14 G 26 MPH 13700 FT 0:1 / -% 0.24" / 0.0" 0.68" / 0.0" 40 10 AM Wed Aug 27 2025 44F 42F / 100% SW 12 G 21 MPH 13600 FT 0:1 / -% 0.06" / 0.0" 0.74" / 0.0" 41 11 AM Wed Aug 27 2025 45F 42F / 100% SW 12 G 19 MPH 13600 FT 0:1 / -% 0.03" / 0.0" 0.77" / 0.0" 42 12 PM Wed Aug 27 2025 48F 43F / 100% SW 12 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 43 01 PM Wed Aug 27 2025 50F 44F / 100% SW 13 G 28 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 44 02 PM Wed Aug 27 2025 50F 44F / 100% SW 11 G 26 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 45 03 PM Wed Aug 27 2025 47F 42F / 99% SW 16 G 30 MPH 13700 FT 0:1 / -% 0.02" / 0.0" 0.79" / 0.0" 46 04 PM Wed Aug 27 2025 49F 43F / 100% SW 13 G 27 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.79" / 0.0" 47 05 PM Wed Aug 27 2025 48F 42F / 100% WSW 13 G 28 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.79" / 0.0" 48 06 PM Wed Aug 27 2025 48F 44F / 100% WSW 15 G 24 MPH 13300 FT 0:1 / -% 0.01" / 0.0" 0.80" / 0.0"