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 02-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 PM Wed Jul 02 2025 60F 52F / 46% SSE 4 G 9 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Wed Jul 02 2025 62F 53F / 43% SSW 4 G 9 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Wed Jul 02 2025 63F 53F / 32% SSW 5 G 13 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Wed Jul 02 2025 63F 54F / 36% SSW 8 G 19 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Wed Jul 02 2025 62F 54F / 43% S 7 G 14 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Wed Jul 02 2025 59F 52F / 43% SSW 8 G 15 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Wed Jul 02 2025 56F 51F / 61% S 13 G 25 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Wed Jul 02 2025 55F 50F / 60% WSW 7 G 10 MPH 14100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Wed Jul 02 2025 54F 50F / 57% W 9 G 14 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Wed Jul 02 2025 51F 48F / 64% WSW 9 G 13 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Wed Jul 02 2025 49F 48F / 71% WSW 8 G 10 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Wed Jul 02 2025 49F 47F / 71% W 11 G 17 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Thu Jul 03 2025 48F 47F / 70% WSW 7 G 10 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Thu Jul 03 2025 48F 47F / 60% WSW 9 G 17 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Thu Jul 03 2025 49F 47F / 58% SW 9 G 14 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Thu Jul 03 2025 48F 46F / 61% SE 8 G 11 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Thu Jul 03 2025 50F 46F / 58% SW 7 G 12 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Thu Jul 03 2025 50F 47F / 63% SSW 7 G 13 MPH 13700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Thu Jul 03 2025 50F 47F / 46% SW 11 G 20 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Thu Jul 03 2025 48F 45F / 64% SW 13 G 23 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Thu Jul 03 2025 47F 44F / 88% SSW 12 G 21 MPH 13900 FT 0:1 / -% 0.01" / 0.0" 0.01" / 0.0" 21 09 AM Thu Jul 03 2025 47F 43F / 93% SW 12 G 19 MPH 14000 FT 0:1 / -% 0.03" / 0.0" 0.04" / 0.0" 22 10 AM Thu Jul 03 2025 48F 43F / 94% SSW 7 G 13 MPH 13900 FT 0:1 / -% 0.01" / 0.0" 0.05" / 0.0" 23 11 AM Thu Jul 03 2025 49F 43F / 93% W 7 G 14 MPH 14000 FT 0:1 / -% 0.00" / 0.0" 0.05" / 0.0" 24 12 PM Thu Jul 03 2025 49F 43F / 93% WNW 8 G 14 MPH 13800 FT 0:1 / -% 0.01" / 0.0" 0.06" / 0.0" 25 01 PM Thu Jul 03 2025 50F 43F / 100% W 10 G 17 MPH 14000 FT 0:1 / -% 0.03" / 0.0" 0.09" / 0.0" 26 02 PM Thu Jul 03 2025 50F 43F / 93% WNW 8 G 17 MPH 13700 FT 0:1 / -% 0.01" / 0.0" 0.10" / 0.0" 27 03 PM Thu Jul 03 2025 50F 43F / 100% WNW 11 G 21 MPH 13300 FT 0:1 / -% 0.01" / 0.0" 0.11" / 0.0" 28 04 PM Thu Jul 03 2025 50F 43F / 96% WNW 9 G 18 MPH 13300 FT 0:1 / -% 0.04" / 0.0" 0.15" / 0.0" 29 05 PM Thu Jul 03 2025 51F 44F / 87% WNW 12 G 20 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 30 06 PM Thu Jul 03 2025 50F 44F / 91% WNW 10 G 16 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 31 07 PM Thu Jul 03 2025 49F 44F / 96% WNW 10 G 16 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 32 08 PM Thu Jul 03 2025 47F 42F / 100% W 15 G 21 MPH 13800 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 33 09 PM Thu Jul 03 2025 46F 43F / 90% W 14 G 23 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 34 10 PM Thu Jul 03 2025 45F 43F / 81% WSW 11 G 16 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 35 11 PM Thu Jul 03 2025 44F 41F / 88% W 12 G 17 MPH 13900 FT 0:1 / -% 0.00" / 0.0" 0.15" / 0.0" 36 12 AM Fri Jul 04 2025 44F 40F / 100% W 12 G 20 MPH 13500 FT 0:1 / -% 0.12" / 0.0" 0.27" / 0.0" 37 01 AM Fri Jul 04 2025 43F 40F / 100% W 9 G 16 MPH 13300 FT 0:1 / -% 0.20" / 0.0" 0.47" / 0.0" 38 02 AM Fri Jul 04 2025 42F 40F / 99% WNW 13 G 19 MPH 13400 FT 0:1 / -% 0.28" / 0.0" 0.75" / 0.0" 39 03 AM Fri Jul 04 2025 42F 40F / 89% WNW 14 G 18 MPH 13600 FT 0:1 / -% 0.02" / 0.0" 0.77" / 0.0" 40 04 AM Fri Jul 04 2025 44F 41F / 66% WNW 18 G 25 MPH 13600 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 41 05 AM Fri Jul 04 2025 44F 43F / 68% WSW 16 G 25 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 42 06 AM Fri Jul 04 2025 43F 42F / 84% W 18 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 43 07 AM Fri Jul 04 2025 43F 41F / 91% WSW 16 G 25 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 44 08 AM Fri Jul 04 2025 45F 43F / 84% W 15 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 45 09 AM Fri Jul 04 2025 46F 43F / 81% WSW 17 G 27 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 46 10 AM Fri Jul 04 2025 48F 44F / 83% WSW 14 G 27 MPH 13500 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 47 11 AM Fri Jul 04 2025 51F 44F / 80% WSW 15 G 26 MPH 13300 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0" 48 12 PM Fri Jul 04 2025 54F 46F / 76% WSW 13 G 26 MPH 13400 FT 0:1 / -% 0.00" / 0.0" 0.77" / 0.0"