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 12Z 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 06 AM Tue Jun 17 2025 43F 42F / 30% WNW 17 G 25 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Jun 17 2025 42F 41F / 25% NW 19 G 27 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Jun 17 2025 44F 41F / 34% ENE 20 G 28 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Jun 17 2025 44F 42F / 35% NW 18 G 26 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Jun 17 2025 47F 41F / 36% NW 16 G 23 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Jun 17 2025 51F 43F / 32% NW 14 G 22 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Jun 17 2025 55F 45F / 35% WNW 14 G 24 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Jun 17 2025 56F 46F / 26% WNW 17 G 28 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Jun 17 2025 58F 46F / 23% WNW 18 G 29 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Jun 17 2025 59F 47F / 32% WNW 18 G 31 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Jun 17 2025 57F 47F / 32% WNW 17 G 27 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Jun 17 2025 57F 47F / 30% WNW 18 G 29 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Jun 17 2025 55F 47F / 29% WNW 18 G 28 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Jun 17 2025 52F 46F / 35% WNW 19 G 29 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Jun 17 2025 48F 44F / 39% WNW 20 G 30 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Jun 17 2025 45F 43F / 44% WNW 21 G 30 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Jun 17 2025 44F 43F / 33% WNW 22 G 32 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Jun 17 2025 45F 43F / 39% WNW 23 G 31 MPH 12000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Jun 18 2025 44F 43F / 39% WNW 23 G 32 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Jun 18 2025 44F 43F / 40% WNW 24 G 31 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Jun 18 2025 45F 42F / 45% WNW 23 G 33 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Jun 18 2025 44F 42F / 48% WNW 21 G 30 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Jun 18 2025 45F 42F / 48% ENE 23 G 31 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Jun 18 2025 44F 42F / 45% WNW 23 G 31 MPH 12100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Jun 18 2025 44F 42F / 45% WNW 21 G 30 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Jun 18 2025 43F 41F / 43% WNW 20 G 28 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Jun 18 2025 45F 42F / 42% WNW 19 G 25 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Jun 18 2025 46F 43F / 47% WNW 15 G 21 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Jun 18 2025 49F 44F / 46% W 9 G 13 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Jun 18 2025 55F 46F / 38% W 8 G 13 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Jun 18 2025 59F 49F / 36% WNW 8 G 16 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Jun 18 2025 61F 51F / 26% W 8 G 15 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Jun 18 2025 64F 53F / 24% W 7 G 16 MPH 12200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Jun 18 2025 64F 53F / 24% WSW 7 G 16 MPH 12700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Jun 18 2025 64F 53F / 22% W 8 G 15 MPH 12800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Jun 18 2025 64F 54F / 23% WSW 9 G 17 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Jun 18 2025 60F 53F / 23% WSW 12 G 20 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Jun 18 2025 61F 57F / 19% WSW 12 G 20 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Wed Jun 18 2025 58F 56F / 24% WSW 12 G 17 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Wed Jun 18 2025 53F 53F / 29% WSW 15 G 20 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Wed Jun 18 2025 54F 54F / 22% WSW 18 G 26 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Wed Jun 18 2025 54F 53F / 19% SW 16 G 26 MPH 13100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Thu Jun 19 2025 54F 54F / 19% SW 19 G 29 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Thu Jun 19 2025 54F 54F / 21% SW 18 G 30 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Thu Jun 19 2025 54F 53F / 20% SSW 18 G 29 MPH 13200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Thu Jun 19 2025 52F 52F / 23% SSW 21 G 32 MPH 13000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Thu Jun 19 2025 51F 51F / 24% SSW 23 G 37 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Thu Jun 19 2025 50F 51F / 15% SW 23 G 35 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Thu Jun 19 2025 50F 51F / 18% SW 22 G 34 MPH 12900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"