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 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 05 AM Tue Feb 04 2025 32F 28F / 61% SSW 33 G 59 MPH 8800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Tue Feb 04 2025 31F 27F / 68% SSW 31 G 57 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Tue Feb 04 2025 31F 27F / 67% SSW 31 G 55 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Tue Feb 04 2025 30F 26F / 66% SSW 31 G 56 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Tue Feb 04 2025 31F 26F / 70% SSW 31 G 59 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Tue Feb 04 2025 33F 27F / 67% SSW 31 G 60 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Tue Feb 04 2025 36F 27F / 65% SSW 30 G 59 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Tue Feb 04 2025 37F 28F / 64% SSW 27 G 55 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Tue Feb 04 2025 37F 27F / 70% SSW 23 G 49 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Tue Feb 04 2025 37F 28F / 73% SSW 22 G 48 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Tue Feb 04 2025 38F 29F / 70% SSW 21 G 46 MPH 9000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Tue Feb 04 2025 38F 29F / 71% SSW 21 G 46 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Tue Feb 04 2025 35F 28F / 67% SSW 20 G 44 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Tue Feb 04 2025 32F 27F / 62% SSW 22 G 45 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Tue Feb 04 2025 31F 26F / 70% SSW 22 G 45 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Tue Feb 04 2025 30F 25F / 67% SSW 24 G 47 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Tue Feb 04 2025 30F 24F / 69% SSW 24 G 48 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Tue Feb 04 2025 29F 23F / 73% SSW 27 G 57 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Tue Feb 04 2025 28F 22F / 73% SSW 31 G 60 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Wed Feb 05 2025 28F 22F / 72% SSW 32 G 58 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Wed Feb 05 2025 27F 21F / 72% SSW 31 G 57 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Wed Feb 05 2025 27F 21F / 81% SSW 32 G 57 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Wed Feb 05 2025 27F 21F / 86% SSW 30 G 56 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Wed Feb 05 2025 26F 21F / 90% SSW 28 G 51 MPH 7400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Wed Feb 05 2025 25F 20F / 94% SSW 30 G 50 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Wed Feb 05 2025 26F 21F / 94% SW 32 G 53 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 07 AM Wed Feb 05 2025 27F 21F / 100% SW 33 G 53 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 27 08 AM Wed Feb 05 2025 27F 21F / 99% SW 33 G 57 MPH 7400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 09 AM Wed Feb 05 2025 26F 19F / 100% SW 31 G 54 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 29 10 AM Wed Feb 05 2025 26F 20F / 92% SW 30 G 54 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 11 AM Wed Feb 05 2025 29F 20F / 96% WSW 29 G 52 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 12 PM Wed Feb 05 2025 30F 20F / 96% WSW 26 G 49 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 01 PM Wed Feb 05 2025 32F 21F / 87% WSW 29 G 53 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 02 PM Wed Feb 05 2025 30F 20F / 93% WSW 28 G 50 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 34 03 PM Wed Feb 05 2025 28F 19F / 91% W 22 G 36 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 04 PM Wed Feb 05 2025 26F 17F / 88% WSW 21 G 36 MPH 5700 FT 13:1 / 8% 0.02" / 0.3" 0.02" / 0.3" 36 05 PM Wed Feb 05 2025 23F 17F / 89% WSW 21 G 36 MPH 5100 FT 13:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 37 06 PM Wed Feb 05 2025 22F 17F / 89% WSW 20 G 37 MPH 4700 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 38 07 PM Wed Feb 05 2025 20F 16F / 87% WSW 24 G 41 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.3" 39 08 PM Wed Feb 05 2025 19F 16F / 74% WSW 27 G 43 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.3" 40 09 PM Wed Feb 05 2025 20F 16F / 69% WSW 22 G 37 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 41 10 PM Wed Feb 05 2025 20F 16F / 64% WSW 22 G 38 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 42 11 PM Wed Feb 05 2025 19F 16F / 64% WSW 24 G 40 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 43 12 AM Thu Feb 06 2025 20F 16F / 74% SW 25 G 43 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 44 01 AM Thu Feb 06 2025 20F 16F / 77% SW 28 G 47 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.02" / 0.3" 45 02 AM Thu Feb 06 2025 20F 15F / 83% SW 28 G 48 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.02" / 0.3" 46 03 AM Thu Feb 06 2025 20F 16F / 87% WSW 27 G 48 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.02" / 0.3" 47 04 AM Thu Feb 06 2025 20F 16F / 83% WSW 27 G 43 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.02" / 0.3" 48 05 AM Thu Feb 06 2025 20F 16F / 88% WSW 26 G 42 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.02" / 0.3"