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 16-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 Sat Mar 15 2025 17F 8F / 92% W 22 G 36 MPH 5100 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sat Mar 15 2025 16F 7F / 94% W 24 G 38 MPH 5000 FT 17:1 / 6% 0.01" / 0.2" 0.01" / 0.2" 2 08 PM Sat Mar 15 2025 15F 8F / 97% W 26 G 42 MPH 5100 FT 15:1 / 7% 0.00" / 0.0" 0.01" / 0.2" 3 09 PM Sat Mar 15 2025 15F 7F / 100% W 26 G 41 MPH 4800 FT 18:1 / 6% 0.01" / 0.2" 0.02" / 0.4" 4 10 PM Sat Mar 15 2025 14F 7F / 92% W 27 G 41 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 0.02" / 0.4" 5 11 PM Sat Mar 15 2025 11F 6F / 80% W 25 G 37 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 0.02" / 0.4" 6 12 AM Sun Mar 16 2025 10F 6F / 84% W 24 G 37 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.02" / 0.4" 7 01 AM Sun Mar 16 2025 10F 8F / 82% W 27 G 40 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.02" / 0.4" 8 02 AM Sun Mar 16 2025 11F 8F / 80% W 27 G 42 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.02" / 0.4" 9 03 AM Sun Mar 16 2025 12F 9F / 80% W 29 G 44 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.02" / 0.4" 10 04 AM Sun Mar 16 2025 13F 10F / 86% W 28 G 44 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.02" / 0.4" 11 05 AM Sun Mar 16 2025 15F 11F / 97% W 27 G 42 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.02" / 0.4" 12 06 AM Sun Mar 16 2025 16F 12F / 98% W 26 G 41 MPH ≤ KSLC 10:1 / 10% 0.01" / 0.1" 0.03" / 0.5" 13 07 AM Sun Mar 16 2025 18F 13F / 100% WSW 27 G 43 MPH ≤ KSLC 9:1 / 11% 0.02" / 0.2" 0.05" / 0.7" 14 08 AM Sun Mar 16 2025 19F 14F / 89% WSW 28 G 44 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 15 09 AM Sun Mar 16 2025 20F 15F / 86% WSW 27 G 42 MPH 4500 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 16 10 AM Sun Mar 16 2025 22F 16F / 84% WSW 25 G 40 MPH 4900 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 17 11 AM Sun Mar 16 2025 23F 17F / 76% WSW 24 G 42 MPH 5200 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 18 12 PM Sun Mar 16 2025 26F 18F / 66% WSW 24 G 41 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 19 01 PM Sun Mar 16 2025 29F 20F / 62% WSW 22 G 37 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 20 02 PM Sun Mar 16 2025 29F 20F / 61% SW 23 G 39 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 21 03 PM Sun Mar 16 2025 31F 22F / 63% SW 22 G 39 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 22 04 PM Sun Mar 16 2025 32F 23F / 56% SW 21 G 39 MPH 7200 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 23 05 PM Sun Mar 16 2025 33F 24F / 56% SSW 20 G 39 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 24 06 PM Sun Mar 16 2025 32F 25F / 57% SSW 21 G 38 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 25 07 PM Sun Mar 16 2025 30F 25F / 54% SSW 24 G 44 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 26 08 PM Sun Mar 16 2025 27F 24F / 55% SSW 24 G 45 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 27 09 PM Sun Mar 16 2025 26F 22F / 61% SSW 26 G 47 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 28 10 PM Sun Mar 16 2025 25F 21F / 63% SSW 27 G 48 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 29 11 PM Sun Mar 16 2025 25F 21F / 64% SSW 26 G 45 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 30 12 AM Mon Mar 17 2025 25F 21F / 63% SSW 26 G 45 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 31 01 AM Mon Mar 17 2025 25F 21F / 66% SSW 28 G 48 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.7" 32 02 AM Mon Mar 17 2025 25F 21F / 67% SSW 30 G 51 MPH 6800 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.7" 33 03 AM Mon Mar 17 2025 24F 21F / 67% SSW 30 G 51 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.7" 34 04 AM Mon Mar 17 2025 24F 21F / 65% SSW 30 G 51 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 35 05 AM Mon Mar 17 2025 24F 21F / 64% SSW 31 G 52 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.7" 36 06 AM Mon Mar 17 2025 23F 21F / 68% SW 29 G 50 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 37 07 AM Mon Mar 17 2025 23F 21F / 69% SW 29 G 47 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 38 08 AM Mon Mar 17 2025 23F 21F / 64% SW 28 G 46 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 39 09 AM Mon Mar 17 2025 24F 21F / 68% SW 28 G 46 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 40 10 AM Mon Mar 17 2025 27F 22F / 66% SW 26 G 46 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 41 11 AM Mon Mar 17 2025 28F 22F / 70% SSW 24 G 44 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 42 12 PM Mon Mar 17 2025 31F 24F / 67% SSW 19 G 38 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.7" 43 01 PM Mon Mar 17 2025 33F 25F / 66% SSW 19 G 39 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 44 02 PM Mon Mar 17 2025 35F 26F / 60% SSW 19 G 39 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.7" 45 03 PM Mon Mar 17 2025 34F 26F / 58% SSW 20 G 42 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 46 04 PM Mon Mar 17 2025 33F 23F / 62% SW 24 G 48 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.7" 47 05 PM Mon Mar 17 2025 27F 20F / 88% W 16 G 31 MPH 6600 FT 13:1 / 8% 0.00" / 0.0" 0.05" / 0.7" 48 06 PM Mon Mar 17 2025 26F 19F / 92% WSW 16 G 30 MPH 6000 FT 13:1 / 8% 0.09" / 1.2" 0.14" / 1.9"