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 23-Apr-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 Tue Apr 22 2025 38F 32F / 51% W 8 G 13 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Apr 22 2025 35F 31F / 55% WSW 8 G 13 MPH 8600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Apr 22 2025 33F 30F / 40% WSW 12 G 16 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Apr 22 2025 33F 30F / 32% SW 14 G 20 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Apr 22 2025 33F 31F / 27% SW 14 G 21 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Apr 22 2025 34F 32F / 26% SW 15 G 24 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Apr 23 2025 34F 32F / 28% SSW 16 G 27 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Apr 23 2025 34F 32F / 29% SSW 17 G 29 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Apr 23 2025 35F 32F / 26% SSW 18 G 30 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Apr 23 2025 34F 31F / 30% SSW 18 G 29 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Apr 23 2025 34F 31F / 30% SSW 17 G 29 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Apr 23 2025 33F 31F / 34% SW 17 G 25 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Apr 23 2025 32F 30F / 41% SSW 17 G 27 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Apr 23 2025 31F 30F / 42% SW 19 G 29 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Apr 23 2025 32F 30F / 43% SW 19 G 30 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Apr 23 2025 33F 30F / 46% SSW 17 G 29 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Apr 23 2025 35F 30F / 48% SSW 15 G 26 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Apr 23 2025 37F 31F / 48% SW 16 G 28 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Apr 23 2025 38F 31F / 47% SW 15 G 28 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Apr 23 2025 42F 33F / 43% SW 14 G 28 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Apr 23 2025 43F 34F / 44% SW 14 G 26 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Apr 23 2025 45F 35F / 41% SSW 12 G 25 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Apr 23 2025 44F 35F / 40% SW 14 G 27 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Apr 23 2025 45F 36F / 45% WSW 12 G 22 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Apr 23 2025 41F 34F / 59% W 13 G 25 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Apr 23 2025 39F 33F / 65% W 12 G 22 MPH 9400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Apr 23 2025 36F 32F / 56% SSW 11 G 19 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Apr 23 2025 34F 31F / 55% SW 9 G 17 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Apr 23 2025 34F 31F / 52% SSE 9 G 13 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Apr 23 2025 32F 29F / 64% WSW 10 G 18 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Apr 24 2025 32F 29F / 69% WNW 10 G 16 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Apr 24 2025 31F 28F / 78% W 11 G 20 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Apr 24 2025 32F 28F / 67% W 11 G 17 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Apr 24 2025 32F 29F / 68% SW 14 G 23 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Apr 24 2025 32F 29F / 67% WSW 17 G 28 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Apr 24 2025 33F 28F / 64% WSW 17 G 26 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Apr 24 2025 32F 29F / 66% WSW 16 G 25 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Apr 24 2025 33F 30F / 66% WSW 17 G 24 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu Apr 24 2025 32F 29F / 70% WSW 14 G 21 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu Apr 24 2025 33F 30F / 69% WSW 12 G 18 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu Apr 24 2025 36F 31F / 67% WSW 10 G 16 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu Apr 24 2025 38F 32F / 78% WSW 8 G 12 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu Apr 24 2025 40F 34F / 75% SSW 6 G 12 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu Apr 24 2025 39F 33F / 69% S 7 G 14 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu Apr 24 2025 43F 35F / 58% SSW 9 G 16 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu Apr 24 2025 43F 36F / 64% SSW 11 G 20 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu Apr 24 2025 43F 34F / 77% SSW 9 G 19 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu Apr 24 2025 42F 35F / 64% SSW 10 G 20 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu Apr 24 2025 42F 36F / 55% SW 11 G 20 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"