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 04-Feb-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 11 AM Tue Feb 04 2025 35F 27F / 70% SSW 25 G 53 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Tue Feb 04 2025 37F 27F / 71% SSW 24 G 52 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Tue Feb 04 2025 38F 27F / 69% SSW 21 G 47 MPH 8800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Tue Feb 04 2025 38F 28F / 71% SSW 21 G 45 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Tue Feb 04 2025 38F 29F / 67% SSW 21 G 45 MPH 8800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Tue Feb 04 2025 38F 29F / 65% SSW 23 G 47 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Tue Feb 04 2025 35F 28F / 69% SSW 21 G 45 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Tue Feb 04 2025 33F 27F / 79% SSW 21 G 42 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Tue Feb 04 2025 32F 26F / 76% SSW 20 G 42 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Tue Feb 04 2025 31F 25F / 72% SSW 23 G 49 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Tue Feb 04 2025 31F 25F / 73% SSW 23 G 46 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Tue Feb 04 2025 31F 24F / 78% SSW 24 G 48 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Tue Feb 04 2025 30F 23F / 83% SSW 27 G 57 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Wed Feb 05 2025 28F 21F / 79% SSW 30 G 58 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 01 AM Wed Feb 05 2025 27F 21F / 82% SSW 32 G 59 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 02 AM Wed Feb 05 2025 26F 21F / 80% SSW 33 G 59 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 03 AM Wed Feb 05 2025 26F 22F / 77% SSW 33 G 60 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 04 AM Wed Feb 05 2025 26F 21F / 86% SSW 32 G 55 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 05 AM Wed Feb 05 2025 27F 22F / 89% SW 32 G 57 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 06 AM Wed Feb 05 2025 27F 21F / 98% SW 32 G 58 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 07 AM Wed Feb 05 2025 27F 21F / 99% SW 32 G 55 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 08 AM Wed Feb 05 2025 27F 20F / 96% SW 34 G 59 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 09 AM Wed Feb 05 2025 26F 19F / 100% SW 32 G 56 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 10 AM Wed Feb 05 2025 26F 19F / 93% WSW 32 G 56 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 11 AM Wed Feb 05 2025 30F 20F / 94% WSW 30 G 54 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 12 PM Wed Feb 05 2025 31F 20F / 89% WSW 29 G 51 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 01 PM Wed Feb 05 2025 31F 20F / 90% WSW 30 G 54 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 02 PM Wed Feb 05 2025 29F 20F / 93% W 26 G 44 MPH 6600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 03 PM Wed Feb 05 2025 26F 17F / 90% W 20 G 35 MPH 6000 FT 13:1 / 8% 0.01" / 0.1" 0.01" / 0.1" 29 04 PM Wed Feb 05 2025 23F 16F / 94% W 21 G 37 MPH 5200 FT 13:1 / 8% 0.01" / 0.1" 0.02" / 0.2" 30 05 PM Wed Feb 05 2025 22F 15F / 93% WSW 21 G 37 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 31 06 PM Wed Feb 05 2025 20F 16F / 83% WSW 21 G 36 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 32 07 PM Wed Feb 05 2025 19F 16F / 81% WSW 23 G 41 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 33 08 PM Wed Feb 05 2025 19F 15F / 82% WSW 22 G 36 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 34 09 PM Wed Feb 05 2025 20F 16F / 74% SW 21 G 33 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 35 10 PM Wed Feb 05 2025 20F 16F / 73% SW 23 G 37 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 36 11 PM Wed Feb 05 2025 21F 18F / 74% SW 24 G 39 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 37 12 AM Thu Feb 06 2025 20F 17F / 75% SW 27 G 46 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 38 01 AM Thu Feb 06 2025 22F 16F / 93% SW 29 G 53 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 39 02 AM Thu Feb 06 2025 24F 19F / 85% SW 30 G 52 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 40 03 AM Thu Feb 06 2025 24F 18F / 84% SW 27 G 50 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 41 04 AM Thu Feb 06 2025 22F 18F / 80% SW 26 G 45 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 42 05 AM Thu Feb 06 2025 22F 18F / 82% SW 25 G 43 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 43 06 AM Thu Feb 06 2025 22F 18F / 74% WSW 24 G 41 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 44 07 AM Thu Feb 06 2025 22F 17F / 75% WSW 24 G 42 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 45 08 AM Thu Feb 06 2025 22F 17F / 79% SW 23 G 40 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 46 09 AM Thu Feb 06 2025 24F 19F / 80% SW 21 G 36 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 47 10 AM Thu Feb 06 2025 27F 20F / 87% SSW 19 G 37 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 48 11 AM Thu Feb 06 2025 29F 21F / 88% SSW 19 G 36 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2"