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 06Z 27-Mar-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 AM Thu Mar 27 2025 37F 35F / 40% SSW 19 G 35 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Thu Mar 27 2025 36F 34F / 39% SSW 20 G 37 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Thu Mar 27 2025 35F 34F / 33% SW 22 G 39 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Thu Mar 27 2025 34F 33F / 34% SSW 23 G 40 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Thu Mar 27 2025 34F 33F / 35% SW 23 G 40 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Thu Mar 27 2025 34F 33F / 32% SW 22 G 39 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Thu Mar 27 2025 34F 33F / 31% SW 23 G 38 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Thu Mar 27 2025 34F 33F / 34% SW 21 G 37 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Thu Mar 27 2025 33F 32F / 33% SW 21 G 36 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Thu Mar 27 2025 34F 32F / 36% SW 21 G 36 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Thu Mar 27 2025 36F 32F / 37% SSW 18 G 33 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Thu Mar 27 2025 39F 33F / 38% SSW 19 G 37 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Thu Mar 27 2025 42F 35F / 43% SSW 19 G 40 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Thu Mar 27 2025 44F 35F / 42% SSW 18 G 39 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Thu Mar 27 2025 45F 35F / 38% SSW 18 G 39 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Thu Mar 27 2025 46F 36F / 34% SSW 20 G 41 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Thu Mar 27 2025 46F 36F / 38% SSW 19 G 41 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Thu Mar 27 2025 44F 36F / 35% SSW 20 G 43 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Thu Mar 27 2025 41F 36F / 33% SSW 23 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Thu Mar 27 2025 39F 35F / 38% SSW 22 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Thu Mar 27 2025 37F 34F / 37% SSW 22 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Thu Mar 27 2025 37F 33F / 42% SSW 24 G 46 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Thu Mar 27 2025 36F 32F / 40% SSW 25 G 49 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Thu Mar 27 2025 35F 31F / 42% SSW 28 G 51 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Fri Mar 28 2025 34F 30F / 45% SW 28 G 53 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Fri Mar 28 2025 31F 28F / 62% SW 22 G 38 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Fri Mar 28 2025 30F 26F / 60% W 15 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Fri Mar 28 2025 30F 26F / 67% W 10 G 16 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Fri Mar 28 2025 29F 25F / 66% WSW 10 G 15 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Fri Mar 28 2025 29F 25F / 65% S 11 G 17 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Fri Mar 28 2025 28F 25F / 72% S 13 G 22 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Fri Mar 28 2025 28F 25F / 67% S 14 G 25 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Fri Mar 28 2025 28F 24F / 68% S 15 G 25 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Fri Mar 28 2025 29F 24F / 70% S 17 G 30 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Fri Mar 28 2025 30F 24F / 65% S 16 G 30 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Fri Mar 28 2025 31F 24F / 68% S 16 G 32 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Fri Mar 28 2025 32F 24F / 82% S 15 G 31 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Fri Mar 28 2025 32F 25F / 85% SSW 15 G 30 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Fri Mar 28 2025 32F 25F / 94% SSW 13 G 27 MPH 6800 FT 9:1 / 11% 0.02" / 0.2" 0.02" / 0.2" 39 03 PM Fri Mar 28 2025 31F 24F / 92% SSW 12 G 25 MPH 6900 FT 11:1 / 9% 0.02" / 0.2" 0.04" / 0.4" 40 04 PM Fri Mar 28 2025 31F 24F / 92% WSW 12 G 25 MPH 7000 FT 11:1 / 9% 0.01" / 0.1" 0.05" / 0.5" 41 05 PM Fri Mar 28 2025 31F 23F / 93% WSW 13 G 23 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5" 42 06 PM Fri Mar 28 2025 30F 23F / 91% WSW 14 G 24 MPH 7000 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.5" 43 07 PM Fri Mar 28 2025 28F 22F / 92% WSW 12 G 21 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5" 44 08 PM Fri Mar 28 2025 25F 21F / 82% WSW 18 G 28 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.5" 45 09 PM Fri Mar 28 2025 24F 20F / 78% WSW 17 G 28 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5" 46 10 PM Fri Mar 28 2025 23F 20F / 71% W 16 G 26 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5" 47 11 PM Fri Mar 28 2025 22F 20F / 71% W 15 G 23 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5" 48 12 AM Sat Mar 29 2025 22F 19F / 71% WSW 12 G 20 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.5"