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 21-May-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 May 20 2025 41F 33F / 62% W 16 G 27 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue May 20 2025 39F 33F / 60% WSW 17 G 28 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue May 20 2025 37F 32F / 69% WSW 18 G 28 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue May 20 2025 35F 32F / 61% W 21 G 32 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue May 20 2025 34F 31F / 60% W 23 G 35 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue May 20 2025 35F 31F / 56% W 25 G 37 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed May 21 2025 34F 31F / 67% W 23 G 34 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed May 21 2025 33F 30F / 67% W 25 G 38 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed May 21 2025 31F 29F / 75% W 26 G 39 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed May 21 2025 31F 28F / 67% W 27 G 40 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed May 21 2025 30F 27F / 82% WNW 25 G 36 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed May 21 2025 30F 26F / 84% WNW 25 G 36 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed May 21 2025 30F 26F / 82% WNW 25 G 36 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed May 21 2025 30F 25F / 72% WNW 27 G 37 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed May 21 2025 30F 26F / 58% WNW 29 G 40 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed May 21 2025 30F 27F / 52% WNW 28 G 39 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed May 21 2025 32F 27F / 54% WNW 25 G 36 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed May 21 2025 35F 28F / 58% WNW 22 G 32 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed May 21 2025 38F 30F / 54% W 20 G 30 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed May 21 2025 40F 31F / 47% W 18 G 27 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed May 21 2025 42F 32F / 47% W 16 G 24 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed May 21 2025 44F 34F / 43% W 15 G 22 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed May 21 2025 44F 35F / 43% W 14 G 21 MPH 8400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed May 21 2025 45F 36F / 42% W 13 G 20 MPH 8600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed May 21 2025 43F 37F / 43% W 13 G 20 MPH 8900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed May 21 2025 41F 36F / 38% WSW 15 G 22 MPH 9000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed May 21 2025 39F 35F / 37% WSW 19 G 25 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed May 21 2025 37F 35F / 29% W 19 G 26 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed May 21 2025 37F 36F / 26% WSW 18 G 24 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed May 21 2025 38F 36F / 28% WSW 17 G 23 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu May 22 2025 38F 37F / 28% WSW 17 G 22 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu May 22 2025 39F 38F / 29% SW 17 G 25 MPH 9600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu May 22 2025 39F 37F / 31% SW 18 G 26 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu May 22 2025 39F 37F / 34% SW 19 G 30 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu May 22 2025 38F 37F / 32% SSW 18 G 31 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu May 22 2025 37F 37F / 38% SSW 20 G 33 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu May 22 2025 37F 37F / 37% SSW 20 G 33 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu May 22 2025 37F 37F / 36% SW 21 G 33 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu May 22 2025 39F 38F / 34% SW 20 G 32 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu May 22 2025 41F 41F / 35% SSW 21 G 34 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu May 22 2025 44F 40F / 41% SSW 20 G 36 MPH 10200 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu May 22 2025 47F 41F / 36% SSW 19 G 36 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu May 22 2025 51F 43F / 35% SSW 19 G 36 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu May 22 2025 54F 45F / 31% SSW 20 G 37 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu May 22 2025 57F 47F / 26% SW 18 G 36 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu May 22 2025 56F 48F / 26% SW 18 G 37 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu May 22 2025 57F 48F / 24% SW 17 G 33 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu May 22 2025 56F 47F / 27% SSW 17 G 34 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu May 22 2025 56F 49F / 23% SW 19 G 35 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"