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 00Z 04-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 PM Tue Jun 03 2025 46F 38F / 41% W 19 G 29 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Jun 03 2025 42F 36F / 44% W 20 G 29 MPH 9200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Jun 03 2025 38F 34F / 41% W 21 G 30 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Jun 03 2025 36F 33F / 41% W 22 G 31 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Jun 03 2025 35F 33F / 40% WNW 22 G 31 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Jun 03 2025 35F 33F / 48% WNW 20 G 27 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Jun 04 2025 36F 33F / 46% WNW 21 G 29 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Jun 04 2025 35F 33F / 48% WNW 20 G 27 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Jun 04 2025 35F 33F / 49% WNW 19 G 26 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Jun 04 2025 36F 33F / 47% W 18 G 26 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Jun 04 2025 35F 32F / 49% W 18 G 25 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Jun 04 2025 35F 32F / 52% W 15 G 21 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Jun 04 2025 35F 32F / 49% WSW 16 G 23 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Jun 04 2025 35F 32F / 48% W 17 G 24 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Jun 04 2025 37F 33F / 49% W 16 G 22 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Jun 04 2025 38F 34F / 50% WSW 15 G 21 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Jun 04 2025 40F 34F / 52% WSW 11 G 18 MPH 8900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Jun 04 2025 43F 36F / 54% WSW 9 G 14 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Jun 04 2025 47F 38F / 47% WSW 7 G 12 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Jun 04 2025 49F 40F / 42% WSW 7 G 13 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Jun 04 2025 51F 41F / 38% WSW 9 G 18 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Jun 04 2025 52F 42F / 39% W 9 G 17 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Jun 04 2025 51F 42F / 42% W 10 G 16 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Jun 04 2025 51F 41F / 49% W 11 G 20 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Jun 04 2025 47F 40F / 48% W 13 G 22 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Jun 04 2025 45F 39F / 49% WSW 12 G 20 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Jun 04 2025 42F 37F / 45% WSW 14 G 20 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Jun 04 2025 38F 36F / 39% WSW 17 G 24 MPH 8900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Jun 04 2025 38F 36F / 29% W 18 G 26 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Jun 04 2025 38F 36F / 28% W 20 G 28 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Jun 05 2025 38F 35F / 25% WSW 18 G 22 MPH 9600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Jun 05 2025 37F 35F / 23% WSW 18 G 23 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Jun 05 2025 37F 35F / 24% W 18 G 24 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Jun 05 2025 37F 34F / 31% WSW 18 G 24 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Jun 05 2025 37F 35F / 29% WSW 15 G 22 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Jun 05 2025 37F 34F / 29% WSW 16 G 24 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Jun 05 2025 37F 35F / 30% WSW 17 G 24 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Jun 05 2025 38F 36F / 29% WSW 18 G 24 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu Jun 05 2025 37F 36F / 32% WSW 16 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu Jun 05 2025 38F 36F / 53% SSW 15 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu Jun 05 2025 42F 37F / 52% SW 13 G 22 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu Jun 05 2025 45F 38F / 51% SW 10 G 18 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu Jun 05 2025 50F 42F / 35% WSW 8 G 16 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu Jun 05 2025 52F 44F / 35% WSW 9 G 17 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu Jun 05 2025 54F 45F / 34% WSW 9 G 18 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu Jun 05 2025 55F 46F / 37% W 12 G 23 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu Jun 05 2025 55F 46F / 39% W 13 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu Jun 05 2025 55F 45F / 37% W 14 G 22 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu Jun 05 2025 52F 45F / 38% W 15 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"