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 18Z 15-Apr-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 PM Tue Apr 15 2025 39F 33F / 33% SSW 16 G 31 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue Apr 15 2025 42F 34F / 34% SW 14 G 28 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue Apr 15 2025 43F 35F / 30% SW 13 G 25 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue Apr 15 2025 44F 35F / 32% SW 13 G 24 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue Apr 15 2025 43F 35F / 31% SW 13 G 22 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue Apr 15 2025 43F 36F / 38% WNW 12 G 20 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue Apr 15 2025 39F 35F / 33% W 11 G 18 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue Apr 15 2025 38F 34F / 31% W 10 G 16 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue Apr 15 2025 36F 33F / 33% WSW 11 G 16 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue Apr 15 2025 35F 33F / 30% WSW 14 G 20 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue Apr 15 2025 35F 33F / 27% WSW 18 G 24 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue Apr 15 2025 35F 33F / 25% W 19 G 26 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed Apr 16 2025 34F 33F / 26% WSW 18 G 24 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed Apr 16 2025 34F 33F / 23% W 17 G 25 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed Apr 16 2025 34F 32F / 28% WSW 15 G 22 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed Apr 16 2025 33F 32F / 29% WSW 16 G 22 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed Apr 16 2025 34F 32F / 35% SW 16 G 24 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed Apr 16 2025 33F 32F / 38% SW 17 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed Apr 16 2025 33F 31F / 36% SW 17 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed Apr 16 2025 33F 31F / 42% SW 17 G 24 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed Apr 16 2025 33F 31F / 46% SW 17 G 26 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed Apr 16 2025 33F 31F / 49% SW 16 G 24 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed Apr 16 2025 37F 32F / 50% SW 15 G 25 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed Apr 16 2025 40F 33F / 49% SW 13 G 24 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed Apr 16 2025 43F 34F / 46% WSW 14 G 24 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed Apr 16 2025 44F 35F / 47% WSW 13 G 23 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed Apr 16 2025 43F 34F / 50% WSW 15 G 27 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed Apr 16 2025 44F 35F / 56% SSW 11 G 19 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed Apr 16 2025 44F 34F / 56% SW 9 G 20 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed Apr 16 2025 39F 34F / 58% WSW 15 G 28 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed Apr 16 2025 39F 33F / 61% WSW 12 G 22 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed Apr 16 2025 38F 33F / 61% WSW 17 G 28 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed Apr 16 2025 34F 29F / 92% W 17 G 31 MPH 9600 FT 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 33 09 PM Wed Apr 16 2025 34F 30F / 68% SW 21 G 37 MPH 9500 FT 7:1 / 14% 0.01" / 0.1" 0.02" / 0.2" 34 10 PM Wed Apr 16 2025 34F 30F / 62% W 19 G 35 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 35 11 PM Wed Apr 16 2025 34F 29F / 66% W 21 G 32 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 36 12 AM Thu Apr 17 2025 33F 29F / 59% W 21 G 37 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.02" / 0.2" 37 01 AM Thu Apr 17 2025 34F 30F / 61% WSW 21 G 35 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 38 02 AM Thu Apr 17 2025 33F 31F / 63% WSW 22 G 36 MPH 9000 FT 7:1 / 14% 0.00" / 0.0" 0.02" / 0.2" 39 03 AM Thu Apr 17 2025 32F 29F / 70% SW 20 G 31 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 40 04 AM Thu Apr 17 2025 31F 26F / 78% WSW 22 G 36 MPH 7900 FT 8:1 / 12% 0.03" / 0.2" 0.05" / 0.4" 41 05 AM Thu Apr 17 2025 29F 25F / 73% WSW 21 G 33 MPH 7400 FT 11:1 / 9% 0.01" / 0.1" 0.06" / 0.5" 42 06 AM Thu Apr 17 2025 28F 23F / 87% WSW 15 G 25 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 0.5" 43 07 AM Thu Apr 17 2025 27F 22F / 95% WSW 14 G 24 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 0.5" 44 08 AM Thu Apr 17 2025 27F 21F / 95% W 15 G 28 MPH 6700 FT 10:1 / 10% 0.02" / 0.2" 0.08" / 0.7" 45 09 AM Thu Apr 17 2025 26F 20F / 93% WSW 17 G 27 MPH 6500 FT 11:1 / 9% 0.03" / 0.3" 0.11" / 1.0" 46 10 AM Thu Apr 17 2025 27F 21F / 94% W 15 G 28 MPH 5700 FT 10:1 / 10% 0.07" / 0.7" 0.18" / 1.7" 47 11 AM Thu Apr 17 2025 27F 20F / 90% WSW 19 G 34 MPH 5800 FT 12:1 / 8% 0.07" / 0.8" 0.25" / 2.5" 48 12 PM Thu Apr 17 2025 28F 20F / 96% WSW 18 G 31 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.25" / 2.5"