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 23-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 Sun Feb 23 2025 23F 22F / 50% WNW 26 G 37 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Sun Feb 23 2025 23F 22F / 49% WNW 25 G 36 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Sun Feb 23 2025 23F 23F / 46% W 25 G 35 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Sun Feb 23 2025 24F 24F / 45% W 26 G 38 MPH 4900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Sun Feb 23 2025 24F 25F / 46% W 25 G 37 MPH 4400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Sun Feb 23 2025 29F 26F / 46% W 26 G 39 MPH 5300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Sun Feb 23 2025 31F 26F / 44% W 24 G 37 MPH 5800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Sun Feb 23 2025 33F 26F / 43% W 27 G 41 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Sun Feb 23 2025 35F 27F / 51% W 27 G 43 MPH 6300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Sun Feb 23 2025 34F 26F / 55% W 28 G 46 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Sun Feb 23 2025 32F 26F / 62% W 28 G 44 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Sun Feb 23 2025 31F 26F / 65% W 27 G 43 MPH 8300 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Sun Feb 23 2025 30F 25F / 68% W 25 G 41 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Sun Feb 23 2025 27F 24F / 79% W 27 G 44 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Sun Feb 23 2025 26F 23F / 94% W 27 G 45 MPH 8800 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 15 08 PM Sun Feb 23 2025 28F 25F / 100% W 27 G 42 MPH 8600 FT 7:1 / 14% 0.03" / 0.2" 0.04" / 0.3" 16 09 PM Sun Feb 23 2025 30F 25F / 97% W 25 G 40 MPH 8900 FT 7:1 / 14% 0.02" / 0.1" 0.06" / 0.4" 17 10 PM Sun Feb 23 2025 30F 25F / 99% W 27 G 43 MPH 8800 FT 7:1 / 14% 0.00" / 0.0" 0.06" / 0.4" 18 11 PM Sun Feb 23 2025 29F 25F / 100% W 27 G 43 MPH 9200 FT 7:1 / 14% 0.01" / 0.1" 0.07" / 0.5" 19 12 AM Mon Feb 24 2025 30F 25F / 100% W 26 G 42 MPH 9000 FT 7:1 / 14% 0.02" / 0.1" 0.09" / 0.6" 20 01 AM Mon Feb 24 2025 30F 25F / 100% W 28 G 45 MPH 9000 FT 7:1 / 14% 0.01" / 0.1" 0.10" / 0.7" 21 02 AM Mon Feb 24 2025 29F 24F / 98% W 28 G 45 MPH 8900 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 22 03 AM Mon Feb 24 2025 29F 24F / 96% W 26 G 42 MPH 8900 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 23 04 AM Mon Feb 24 2025 29F 23F / 100% W 27 G 43 MPH 8700 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 24 05 AM Mon Feb 24 2025 28F 23F / 100% WNW 27 G 40 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.10" / 0.7" 25 06 AM Mon Feb 24 2025 27F 22F / 100% WNW 25 G 38 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 26 07 AM Mon Feb 24 2025 26F 22F / 87% WNW 26 G 39 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 27 08 AM Mon Feb 24 2025 25F 22F / 85% WNW 26 G 39 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 28 09 AM Mon Feb 24 2025 28F 23F / 86% W 25 G 37 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.10" / 0.7" 29 10 AM Mon Feb 24 2025 30F 24F / 77% W 24 G 35 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.10" / 0.7" 30 11 AM Mon Feb 24 2025 32F 25F / 71% W 22 G 35 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.10" / 0.7" 31 12 PM Mon Feb 24 2025 34F 27F / 67% W 22 G 34 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.10" / 0.7" 32 01 PM Mon Feb 24 2025 36F 27F / 63% W 22 G 34 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.10" / 0.7" 33 02 PM Mon Feb 24 2025 36F 28F / 64% W 20 G 33 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 34 03 PM Mon Feb 24 2025 34F 27F / 66% WSW 20 G 31 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 35 04 PM Mon Feb 24 2025 34F 28F / 68% WSW 20 G 31 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 36 05 PM Mon Feb 24 2025 33F 28F / 70% WSW 18 G 30 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 37 06 PM Mon Feb 24 2025 32F 28F / 68% WSW 18 G 30 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 38 07 PM Mon Feb 24 2025 30F 28F / 68% WSW 17 G 29 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 39 08 PM Mon Feb 24 2025 30F 27F / 69% WSW 17 G 27 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.10" / 0.7" 40 09 PM Mon Feb 24 2025 29F 26F / 76% SW 15 G 24 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.10" / 0.7" 41 10 PM Mon Feb 24 2025 28F 25F / 78% SSW 14 G 25 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.10" / 0.7" 42 11 PM Mon Feb 24 2025 26F 23F / 91% SW 15 G 25 MPH 8600 FT 11:1 / 9% 0.01" / 0.1" 0.11" / 0.8" 43 12 AM Tue Feb 25 2025 28F 24F / 92% SW 15 G 27 MPH 8700 FT 10:1 / 10% 0.05" / 0.5" 0.16" / 1.3" 44 01 AM Tue Feb 25 2025 29F 24F / 98% WSW 15 G 28 MPH 8900 FT 11:1 / 9% 0.11" / 1.2" 0.27" / 2.5" 45 02 AM Tue Feb 25 2025 29F 25F / 87% WSW 23 G 38 MPH 8700 FT 7:1 / 14% 0.09" / 0.6" 0.36" / 3.1" 46 03 AM Tue Feb 25 2025 30F 26F / 68% WSW 25 G 40 MPH 8300 FT 9:1 / 11% 0.01" / 0.1" 0.37" / 3.2" 47 04 AM Tue Feb 25 2025 28F 26F / 56% W 29 G 44 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.37" / 3.2" 48 05 AM Tue Feb 25 2025 27F 23F / 75% W 26 G 40 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.37" / 3.2"