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 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 06 AM Tue Apr 15 2025 31F 32F / 23% SW 16 G 24 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Tue Apr 15 2025 32F 31F / 22% SSW 17 G 26 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Tue Apr 15 2025 32F 31F / 23% SSW 18 G 29 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Tue Apr 15 2025 32F 31F / 22% SSW 19 G 32 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Tue Apr 15 2025 33F 32F / 31% S 17 G 30 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Tue Apr 15 2025 37F 32F / 38% SSW 16 G 29 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Tue Apr 15 2025 39F 33F / 38% S 15 G 28 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Tue Apr 15 2025 41F 34F / 35% SSW 14 G 26 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Tue Apr 15 2025 42F 35F / 32% SW 12 G 23 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Tue Apr 15 2025 44F 35F / 28% WSW 12 G 23 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Tue Apr 15 2025 42F 35F / 28% WSW 14 G 24 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Tue Apr 15 2025 42F 35F / 38% WSW 9 G 15 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Tue Apr 15 2025 40F 35F / 36% W 10 G 16 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Tue Apr 15 2025 38F 33F / 33% W 11 G 16 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Tue Apr 15 2025 36F 32F / 35% W 13 G 17 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Tue Apr 15 2025 35F 33F / 32% WSW 17 G 22 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Tue Apr 15 2025 35F 33F / 28% WSW 18 G 25 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Tue Apr 15 2025 34F 32F / 27% W 19 G 27 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Wed Apr 16 2025 34F 33F / 26% WSW 18 G 26 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Wed Apr 16 2025 33F 32F / 27% WSW 16 G 22 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Wed Apr 16 2025 33F 32F / 34% SW 17 G 24 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Wed Apr 16 2025 33F 32F / 39% SW 16 G 22 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Wed Apr 16 2025 33F 32F / 40% SW 16 G 24 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Wed Apr 16 2025 33F 31F / 45% SW 17 G 26 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Wed Apr 16 2025 33F 31F / 48% SW 17 G 25 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Wed Apr 16 2025 32F 31F / 46% SW 17 G 25 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Wed Apr 16 2025 33F 31F / 48% SW 16 G 25 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Wed Apr 16 2025 34F 31F / 50% SW 16 G 26 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Wed Apr 16 2025 37F 32F / 52% SW 16 G 29 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Wed Apr 16 2025 40F 33F / 47% WSW 16 G 28 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Wed Apr 16 2025 42F 35F / 46% SW 16 G 29 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Wed Apr 16 2025 44F 35F / 51% SSW 15 G 29 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Wed Apr 16 2025 44F 34F / 55% SSW 16 G 28 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Wed Apr 16 2025 42F 33F / 65% SW 11 G 22 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Wed Apr 16 2025 42F 33F / 61% W 11 G 23 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Wed Apr 16 2025 41F 33F / 64% W 12 G 19 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Wed Apr 16 2025 40F 34F / 54% WSW 13 G 22 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Wed Apr 16 2025 39F 34F / 65% W 14 G 27 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Wed Apr 16 2025 35F 32F / 67% W 17 G 29 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Wed Apr 16 2025 35F 32F / 63% WSW 15 G 24 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Wed Apr 16 2025 35F 33F / 61% SW 13 G 23 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Wed Apr 16 2025 35F 32F / 60% WSW 13 G 21 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Thu Apr 17 2025 35F 32F / 57% WSW 17 G 26 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Thu Apr 17 2025 34F 31F / 61% WSW 18 G 28 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Thu Apr 17 2025 34F 30F / 65% W 16 G 29 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Thu Apr 17 2025 34F 30F / 61% SW 19 G 30 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Thu Apr 17 2025 34F 29F / 61% WSW 25 G 43 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Thu Apr 17 2025 32F 28F / 72% WSW 22 G 38 MPH 8300 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 48 06 AM Thu Apr 17 2025 31F 27F / 74% SW 22 G 37 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.01" / 0.1"