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 17-Jun-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 Tue Jun 17 2025 48F 46F / 19% WNW 15 G 21 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Tue Jun 17 2025 47F 45F / 17% NW 15 G 23 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Tue Jun 17 2025 46F 45F / 20% NW 17 G 24 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Tue Jun 17 2025 46F 44F / 19% NW 14 G 21 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Tue Jun 17 2025 45F 43F / 21% WNW 18 G 25 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Tue Jun 17 2025 43F 42F / 37% WNW 20 G 31 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Tue Jun 17 2025 43F 41F / 35% WNW 18 G 25 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Tue Jun 17 2025 42F 41F / 43% NW 17 G 27 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Tue Jun 17 2025 43F 41F / 46% NW 20 G 28 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Tue Jun 17 2025 44F 42F / 43% E 18 G 23 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Tue Jun 17 2025 47F 41F / 39% WNW 14 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Tue Jun 17 2025 52F 43F / 35% WNW 13 G 22 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Tue Jun 17 2025 56F 45F / 32% WNW 16 G 25 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Tue Jun 17 2025 58F 47F / 30% WNW 19 G 29 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Tue Jun 17 2025 58F 47F / 22% WNW 16 G 25 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Tue Jun 17 2025 59F 47F / 32% WNW 16 G 26 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Tue Jun 17 2025 58F 47F / 40% WNW 17 G 29 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Tue Jun 17 2025 58F 47F / 38% WNW 20 G 31 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Tue Jun 17 2025 54F 47F / 40% WNW 19 G 30 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Tue Jun 17 2025 52F 46F / 43% WNW 19 G 28 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Tue Jun 17 2025 48F 44F / 45% WNW 22 G 31 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Tue Jun 17 2025 45F 43F / 46% WNW 23 G 32 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Tue Jun 17 2025 44F 43F / 39% WNW 23 G 31 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Tue Jun 17 2025 44F 43F / 43% WNW 22 G 31 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Wed Jun 18 2025 44F 43F / 43% WNW 24 G 33 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Wed Jun 18 2025 45F 43F / 43% WNW 24 G 33 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Wed Jun 18 2025 45F 43F / 44% WNW 23 G 32 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Wed Jun 18 2025 44F 43F / 40% WNW 22 G 31 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Wed Jun 18 2025 44F 42F / 43% WNW 22 G 31 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Wed Jun 18 2025 44F 42F / 44% WNW 21 G 30 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Wed Jun 18 2025 44F 42F / 43% WNW 20 G 28 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Wed Jun 18 2025 43F 41F / 48% WNW 19 G 25 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Wed Jun 18 2025 45F 43F / 42% WNW 17 G 22 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Wed Jun 18 2025 46F 44F / 52% W 14 G 20 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Wed Jun 18 2025 49F 44F / 48% W 9 G 14 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Wed Jun 18 2025 54F 46F / 40% W 8 G 13 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Wed Jun 18 2025 59F 50F / 33% WNW 9 G 16 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Wed Jun 18 2025 63F 54F / 21% W 8 G 15 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Wed Jun 18 2025 64F 54F / 22% W 8 G 15 MPH 12400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Wed Jun 18 2025 65F 56F / 23% W 10 G 20 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Wed Jun 18 2025 66F 56F / 26% WSW 11 G 20 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Wed Jun 18 2025 67F 57F / 24% W 11 G 19 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Wed Jun 18 2025 63F 57F / 17% WSW 15 G 23 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Wed Jun 18 2025 61F 57F / 24% W 14 G 21 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Wed Jun 18 2025 58F 56F / 23% WSW 14 G 20 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Wed Jun 18 2025 54F 54F / 27% SW 16 G 24 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Wed Jun 18 2025 53F 53F / 20% WSW 18 G 27 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Wed Jun 18 2025 54F 54F / 23% SW 18 G 25 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Thu Jun 19 2025 54F 54F / 20% SW 18 G 26 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"