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 03-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 03 2025 32F 29F / 54% WNW 23 G 35 MPH 8800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Jun 03 2025 32F 29F / 55% WNW 25 G 36 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Jun 03 2025 34F 30F / 55% WNW 27 G 37 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Jun 03 2025 35F 31F / 49% W 27 G 38 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Jun 03 2025 37F 31F / 51% WNW 26 G 38 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Jun 03 2025 39F 31F / 58% WNW 24 G 35 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Jun 03 2025 43F 33F / 61% W 22 G 35 MPH 8700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Jun 03 2025 45F 35F / 48% W 22 G 33 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Jun 03 2025 47F 35F / 43% W 22 G 33 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Jun 03 2025 48F 36F / 44% W 21 G 33 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Jun 03 2025 47F 36F / 49% W 21 G 33 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Jun 03 2025 47F 36F / 47% W 21 G 32 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Jun 03 2025 45F 37F / 43% W 21 G 31 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Jun 03 2025 42F 36F / 41% WNW 20 G 30 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Jun 03 2025 39F 35F / 42% WNW 23 G 33 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Jun 03 2025 37F 33F / 43% WNW 24 G 35 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Jun 03 2025 36F 33F / 45% WNW 24 G 36 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Jun 03 2025 36F 33F / 55% WNW 22 G 31 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Jun 04 2025 36F 33F / 55% WNW 22 G 30 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Jun 04 2025 36F 33F / 51% W 23 G 31 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Jun 04 2025 35F 33F / 49% W 22 G 33 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Jun 04 2025 35F 32F / 50% W 21 G 29 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Jun 04 2025 35F 32F / 49% W 21 G 30 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Jun 04 2025 35F 32F / 46% W 21 G 31 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Jun 04 2025 35F 32F / 46% W 21 G 31 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Jun 04 2025 34F 32F / 47% W 20 G 29 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Jun 04 2025 36F 33F / 44% W 19 G 29 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Jun 04 2025 37F 34F / 47% W 18 G 27 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Jun 04 2025 40F 34F / 48% W 15 G 23 MPH 8600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Jun 04 2025 43F 35F / 46% W 12 G 20 MPH 8800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Jun 04 2025 46F 37F / 42% WSW 11 G 19 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Jun 04 2025 49F 39F / 38% WSW 10 G 17 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Jun 04 2025 51F 40F / 39% WSW 10 G 18 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Jun 04 2025 51F 41F / 42% WSW 9 G 19 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Jun 04 2025 51F 41F / 42% W 9 G 16 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Jun 04 2025 51F 42F / 42% W 10 G 17 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Jun 04 2025 48F 40F / 46% W 12 G 20 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Jun 04 2025 48F 43F / 40% WSW 11 G 20 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Wed Jun 04 2025 45F 42F / 41% WSW 13 G 19 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Wed Jun 04 2025 41F 39F / 43% WSW 16 G 22 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Wed Jun 04 2025 40F 39F / 42% WSW 16 G 24 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Wed Jun 04 2025 40F 38F / 39% WSW 16 G 23 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Thu Jun 05 2025 40F 39F / 35% WSW 18 G 24 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Thu Jun 05 2025 39F 38F / 33% WSW 18 G 26 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Thu Jun 05 2025 40F 38F / 30% W 16 G 24 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Thu Jun 05 2025 39F 38F / 29% WSW 18 G 25 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Thu Jun 05 2025 39F 37F / 27% WSW 18 G 27 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Thu Jun 05 2025 37F 36F / 33% WSW 19 G 26 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Thu Jun 05 2025 36F 36F / 32% WSW 17 G 26 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"