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 12-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 12 2025 48F 47F / 35% N 19 G 28 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat Jul 12 2025 48F 46F / 50% N 20 G 31 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat Jul 12 2025 47F 46F / 43% NW 22 G 30 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat Jul 12 2025 46F 46F / 45% NW 22 G 31 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat Jul 12 2025 46F 46F / 41% NW 24 G 33 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat Jul 12 2025 47F 46F / 45% NW 23 G 34 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat Jul 12 2025 47F 46F / 40% WNW 24 G 34 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat Jul 12 2025 47F 45F / 43% WNW 22 G 31 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat Jul 12 2025 48F 47F / 39% WNW 21 G 30 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat Jul 12 2025 50F 48F / 47% WNW 18 G 23 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat Jul 12 2025 53F 48F / 43% WNW 15 G 25 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat Jul 12 2025 58F 50F / 36% WNW 13 G 23 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat Jul 12 2025 61F 52F / 33% WNW 14 G 22 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat Jul 12 2025 63F 53F / 35% WNW 15 G 23 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat Jul 12 2025 65F 54F / 23% WNW 14 G 22 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat Jul 12 2025 65F 55F / 23% WNW 13 G 22 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat Jul 12 2025 65F 56F / 19% WNW 12 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat Jul 12 2025 65F 56F / 18% WNW 14 G 23 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat Jul 12 2025 61F 56F / 29% WNW 14 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat Jul 12 2025 59F 54F / 33% WNW 14 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat Jul 12 2025 55F 52F / 30% WNW 14 G 20 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat Jul 12 2025 51F 52F / 20% W 13 G 18 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat Jul 12 2025 51F 52F / 10% W 10 G 12 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat Jul 12 2025 52F 52F / 15% NW 12 G 19 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun Jul 13 2025 52F 51F / 30% N 15 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun Jul 13 2025 51F 50F / 34% NNW 18 G 27 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun Jul 13 2025 51F 50F / 35% NNW 17 G 22 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun Jul 13 2025 50F 50F / 38% NNW 15 G 22 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun Jul 13 2025 49F 49F / 37% NW 16 G 23 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun Jul 13 2025 50F 49F / 37% NNE 16 G 25 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun Jul 13 2025 49F 49F / 33% WNW 17 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun Jul 13 2025 49F 48F / 34% NW 16 G 21 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun Jul 13 2025 50F 49F / 28% NW 14 G 18 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun Jul 13 2025 53F 51F / 33% NW 11 G 16 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun Jul 13 2025 56F 52F / 27% WNW 8 G 15 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun Jul 13 2025 61F 54F / 20% WNW 7 G 14 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun Jul 13 2025 64F 56F / 16% WNW 10 G 16 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sun Jul 13 2025 67F 60F / 13% WNW 9 G 15 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sun Jul 13 2025 68F 59F / 13% W 9 G 18 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sun Jul 13 2025 69F 60F / 14% WNW 11 G 21 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sun Jul 13 2025 69F 60F / 14% W 13 G 22 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sun Jul 13 2025 69F 60F / 9% W 14 G 24 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sun Jul 13 2025 66F 60F / 7% W 16 G 24 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sun Jul 13 2025 63F 59F / 7% W 18 G 25 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sun Jul 13 2025 59F 58F / 16% W 17 G 25 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sun Jul 13 2025 55F 55F / 15% WNW 18 G 29 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sun Jul 13 2025 54F 55F / 6% WNW 21 G 32 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sun Jul 13 2025 54F 55F / 17% WNW 25 G 38 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Mon Jul 14 2025 53F 54F / 12% WNW 24 G 33 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"