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 28-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 06 PM Thu Mar 27 2025 40F 35F / 40% SSW 24 G 47 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Thu Mar 27 2025 39F 34F / 36% SSW 25 G 51 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Thu Mar 27 2025 38F 34F / 35% S 25 G 50 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Thu Mar 27 2025 38F 33F / 34% SSW 26 G 53 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Thu Mar 27 2025 36F 32F / 39% SSW 27 G 52 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Thu Mar 27 2025 35F 31F / 42% SSW 27 G 55 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Fri Mar 28 2025 30F 26F / 100% WNW 20 G 36 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Fri Mar 28 2025 31F 26F / 100% W 14 G 26 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Fri Mar 28 2025 31F 27F / 85% WSW 17 G 30 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Fri Mar 28 2025 29F 24F / 89% WNW 15 G 28 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Fri Mar 28 2025 28F 23F / 96% WNW 13 G 23 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Fri Mar 28 2025 28F 23F / 80% ESE 11 G 19 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Fri Mar 28 2025 27F 23F / 64% WNW 9 G 15 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Fri Mar 28 2025 26F 23F / 58% W 9 G 12 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Fri Mar 28 2025 26F 22F / 61% SW 8 G 13 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Fri Mar 28 2025 25F 22F / 68% SSE 8 G 13 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Fri Mar 28 2025 29F 24F / 68% SSE 10 G 18 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Fri Mar 28 2025 32F 25F / 74% SSE 9 G 19 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Fri Mar 28 2025 35F 26F / 78% S 7 G 18 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Fri Mar 28 2025 37F 28F / 81% SSW 7 G 17 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Fri Mar 28 2025 37F 28F / 89% WSW 6 G 14 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Fri Mar 28 2025 37F 27F / 83% WSW 8 G 16 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Fri Mar 28 2025 36F 27F / 80% WSW 8 G 16 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Fri Mar 28 2025 35F 26F / 77% WSW 9 G 18 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Fri Mar 28 2025 32F 26F / 72% WSW 9 G 16 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Fri Mar 28 2025 30F 25F / 75% W 10 G 18 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Fri Mar 28 2025 26F 23F / 68% W 13 G 20 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Fri Mar 28 2025 25F 22F / 62% W 14 G 22 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Fri Mar 28 2025 25F 22F / 61% W 13 G 20 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Fri Mar 28 2025 25F 22F / 64% WSW 13 G 19 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sat Mar 29 2025 24F 22F / 62% SW 12 G 17 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sat Mar 29 2025 23F 21F / 60% SW 11 G 19 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sat Mar 29 2025 24F 21F / 62% SW 10 G 18 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sat Mar 29 2025 24F 21F / 63% SSW 10 G 17 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sat Mar 29 2025 25F 21F / 62% S 12 G 22 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sat Mar 29 2025 25F 22F / 62% S 14 G 24 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sat Mar 29 2025 25F 21F / 67% SSE 14 G 25 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sat Mar 29 2025 25F 21F / 70% SSE 14 G 24 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sat Mar 29 2025 25F 21F / 70% SSE 13 G 24 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sat Mar 29 2025 26F 22F / 72% SSE 15 G 27 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sat Mar 29 2025 28F 22F / 78% SSE 14 G 28 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sat Mar 29 2025 29F 22F / 84% S 12 G 24 MPH 7300 FT 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 42 12 PM Sat Mar 29 2025 30F 23F / 89% S 13 G 27 MPH 7100 FT 10:1 / 10% 0.04" / 0.4" 0.05" / 0.5" 43 01 PM Sat Mar 29 2025 30F 23F / 93% SSW 11 G 24 MPH 6900 FT 12:1 / 8% 0.02" / 0.2" 0.07" / 0.7" 44 02 PM Sat Mar 29 2025 29F 22F / 90% WSW 9 G 20 MPH 6700 FT 11:1 / 9% 0.04" / 0.4" 0.11" / 1.1" 45 03 PM Sat Mar 29 2025 29F 22F / 91% W 13 G 26 MPH 6100 FT 11:1 / 9% 0.03" / 0.3" 0.14" / 1.4" 46 04 PM Sat Mar 29 2025 28F 20F / 93% W 17 G 30 MPH 5900 FT 14:1 / 7% 0.10" / 1.4" 0.24" / 2.8" 47 05 PM Sat Mar 29 2025 26F 18F / 92% WNW 18 G 31 MPH 6000 FT 12:1 / 8% 0.13" / 1.6" 0.37" / 4.4" 48 06 PM Sat Mar 29 2025 24F 17F / 92% WNW 18 G 28 MPH 6100 FT 12:1 / 8% 0.09" / 1.1" 0.46" / 5.5"