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 05-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 05 AM Wed Feb 05 2025 28F 20F / 100% S 30 G 57 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Wed Feb 05 2025 27F 21F / 97% SW 30 G 56 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Wed Feb 05 2025 27F 21F / 100% SW 36 G 63 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Wed Feb 05 2025 27F 21F / 98% WSW 36 G 61 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Wed Feb 05 2025 27F 20F / 98% WSW 36 G 63 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Wed Feb 05 2025 28F 20F / 97% WSW 35 G 59 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Wed Feb 05 2025 30F 19F / 93% WSW 33 G 58 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Wed Feb 05 2025 31F 21F / 91% WSW 34 G 60 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Wed Feb 05 2025 33F 20F / 74% WSW 35 G 59 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Wed Feb 05 2025 28F 19F / 94% W 28 G 48 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Wed Feb 05 2025 27F 16F / 92% W 26 G 41 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Wed Feb 05 2025 26F 15F / 83% W 23 G 40 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Wed Feb 05 2025 21F 13F / 78% W 25 G 37 MPH 5000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Wed Feb 05 2025 17F 12F / 69% W 25 G 40 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Wed Feb 05 2025 16F 13F / 60% W 28 G 45 MPH 4400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Wed Feb 05 2025 17F 14F / 52% WSW 28 G 47 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Wed Feb 05 2025 16F 14F / 51% WSW 29 G 45 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Wed Feb 05 2025 16F 14F / 45% W 28 G 42 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Wed Feb 05 2025 16F 14F / 47% WSW 29 G 45 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Thu Feb 06 2025 16F 14F / 46% WSW 30 G 45 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Thu Feb 06 2025 16F 15F / 41% WSW 30 G 47 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Thu Feb 06 2025 17F 15F / 37% WSW 32 G 47 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Thu Feb 06 2025 17F 15F / 35% WSW 28 G 44 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Thu Feb 06 2025 17F 16F / 39% WSW 28 G 43 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Thu Feb 06 2025 17F 16F / 42% WSW 27 G 42 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Thu Feb 06 2025 19F 17F / 45% WSW 27 G 43 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 07 AM Thu Feb 06 2025 20F 18F / 59% WSW 26 G 42 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 08 AM Thu Feb 06 2025 21F 19F / 68% SW 24 G 41 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 28 09 AM Thu Feb 06 2025 24F 20F / 67% SW 23 G 41 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 10 AM Thu Feb 06 2025 27F 21F / 68% SW 22 G 42 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 11 AM Thu Feb 06 2025 30F 22F / 84% SSW 21 G 40 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 12 PM Thu Feb 06 2025 30F 22F / 81% SSW 20 G 39 MPH 4600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 01 PM Thu Feb 06 2025 31F 22F / 77% SSW 19 G 39 MPH 5200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 02 PM Thu Feb 06 2025 31F 22F / 83% SSW 19 G 37 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 03 PM Thu Feb 06 2025 31F 22F / 79% SW 21 G 39 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 04 PM Thu Feb 06 2025 30F 21F / 82% SW 21 G 41 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 05 PM Thu Feb 06 2025 29F 21F / 84% SW 21 G 39 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 06 PM Thu Feb 06 2025 27F 21F / 83% SW 23 G 43 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 07 PM Thu Feb 06 2025 26F 21F / 80% SW 23 G 43 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 08 PM Thu Feb 06 2025 27F 22F / 77% SW 23 G 42 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 09 PM Thu Feb 06 2025 27F 22F / 81% SW 25 G 43 MPH 6300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 10 PM Thu Feb 06 2025 27F 22F / 84% SW 26 G 48 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 11 PM Thu Feb 06 2025 26F 22F / 84% SW 26 G 49 MPH 5800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 43 12 AM Fri Feb 07 2025 26F 21F / 92% SW 26 G 49 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 44 01 AM Fri Feb 07 2025 26F 22F / 89% SW 28 G 47 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 45 02 AM Fri Feb 07 2025 27F 21F / 96% SSW 27 G 45 MPH 7400 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 46 03 AM Fri Feb 07 2025 27F 21F / 93% SSW 27 G 49 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 47 04 AM Fri Feb 07 2025 26F 21F / 95% SSW 25 G 46 MPH 7900 FT 8:1 / 12% 0.02" / 0.2" 0.03" / 0.3" 48 05 AM Fri Feb 07 2025 27F 22F / 100% SSW 27 G 48 MPH 8100 FT 7:1 / 14% 0.01" / 0.1" 0.04" / 0.4"