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 11-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 Fri Jul 11 2025 60F 51F / 39% WNW 14 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri Jul 11 2025 61F 51F / 41% W 14 G 23 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Fri Jul 11 2025 63F 52F / 38% W 13 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Fri Jul 11 2025 63F 53F / 39% W 14 G 23 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Fri Jul 11 2025 62F 53F / 34% W 14 G 23 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Fri Jul 11 2025 61F 54F / 32% WNW 14 G 23 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Fri Jul 11 2025 59F 53F / 37% W 14 G 22 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Fri Jul 11 2025 56F 51F / 51% W 14 G 22 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Fri Jul 11 2025 52F 49F / 37% WNW 15 G 23 MPH 12300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Fri Jul 11 2025 50F 48F / 33% WNW 16 G 24 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Fri Jul 11 2025 49F 48F / 31% WNW 15 G 22 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Fri Jul 11 2025 49F 47F / 47% NW 18 G 26 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Sat Jul 12 2025 48F 47F / 51% NNW 20 G 30 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Sat Jul 12 2025 48F 47F / 58% NNW 21 G 31 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Sat Jul 12 2025 48F 46F / 63% NNW 22 G 30 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Sat Jul 12 2025 47F 45F / 69% NW 22 G 29 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Sat Jul 12 2025 46F 45F / 71% ENE 22 G 30 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Sat Jul 12 2025 46F 45F / 63% NW 21 G 29 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Sat Jul 12 2025 46F 45F / 60% NW 20 G 27 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Sat Jul 12 2025 46F 45F / 65% WNW 19 G 26 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Sat Jul 12 2025 47F 46F / 56% WNW 18 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Sat Jul 12 2025 49F 47F / 52% WNW 16 G 20 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Sat Jul 12 2025 53F 48F / 43% WNW 12 G 19 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Sat Jul 12 2025 58F 50F / 39% WNW 11 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Sat Jul 12 2025 60F 52F / 28% WNW 11 G 18 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Sat Jul 12 2025 62F 53F / 31% WNW 12 G 19 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Sat Jul 12 2025 65F 53F / 34% WNW 12 G 21 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Sat Jul 12 2025 65F 55F / 26% WNW 14 G 23 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Sat Jul 12 2025 65F 54F / 26% W 14 G 23 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Sat Jul 12 2025 64F 55F / 30% WNW 12 G 22 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Sat Jul 12 2025 61F 55F / 32% WNW 15 G 23 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Sat Jul 12 2025 58F 54F / 33% WNW 14 G 23 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Sat Jul 12 2025 54F 51F / 30% W 14 G 22 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Sat Jul 12 2025 51F 50F / 24% W 14 G 21 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Sat Jul 12 2025 51F 51F / 9% W 12 G 16 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Sat Jul 12 2025 51F 51F / 11% WNW 12 G 14 MPH 12500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sun Jul 13 2025 51F 51F / 12% NW 13 G 20 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sun Jul 13 2025 51F 52F / 38% WNW 14 G 22 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sun Jul 13 2025 51F 51F / 48% NW 14 G 21 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sun Jul 13 2025 50F 51F / 54% NW 16 G 22 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sun Jul 13 2025 50F 51F / 47% SSW 14 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sun Jul 13 2025 50F 51F / 39% WNW 14 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sun Jul 13 2025 50F 51F / 37% WNW 17 G 23 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sun Jul 13 2025 50F 51F / 33% WNW 16 G 20 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sun Jul 13 2025 50F 52F / 28% WNW 16 G 21 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sun Jul 13 2025 53F 54F / 34% WNW 16 G 24 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sun Jul 13 2025 56F 53F / 30% WNW 14 G 23 MPH 12600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sun Jul 13 2025 63F 55F / 20% WNW 12 G 19 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sun Jul 13 2025 66F 56F / 15% WNW 11 G 21 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"