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 18Z 01-May-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 12 PM Thu May 01 2025 36F 27F / 79% NNW 8 G 13 MPH 8400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Thu May 01 2025 38F 29F / 79% NW 7 G 12 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Thu May 01 2025 41F 31F / 71% NW 9 G 16 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Thu May 01 2025 42F 33F / 66% NW 11 G 19 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Thu May 01 2025 42F 32F / 66% WNW 9 G 17 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Thu May 01 2025 41F 32F / 70% NW 10 G 18 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Thu May 01 2025 39F 32F / 70% WNW 9 G 17 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Thu May 01 2025 37F 31F / 72% NW 12 G 18 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Thu May 01 2025 34F 29F / 76% NW 12 G 19 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Thu May 01 2025 32F 28F / 69% NNW 11 G 16 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Thu May 01 2025 31F 29F / 73% NNE 9 G 16 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Thu May 01 2025 31F 28F / 77% ENE 10 G 16 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Fri May 02 2025 31F 29F / 65% E 10 G 18 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Fri May 02 2025 31F 29F / 69% E 10 G 19 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Fri May 02 2025 31F 29F / 64% ESE 10 G 17 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Fri May 02 2025 31F 28F / 64% SE 13 G 22 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Fri May 02 2025 31F 29F / 61% S 12 G 17 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Fri May 02 2025 30F 28F / 65% SSE 12 G 18 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Fri May 02 2025 30F 28F / 66% SE 12 G 18 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Fri May 02 2025 30F 28F / 66% SSE 12 G 17 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Fri May 02 2025 30F 28F / 64% SSE 12 G 17 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Fri May 02 2025 31F 29F / 61% SSE 10 G 16 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Fri May 02 2025 33F 30F / 61% SSE 11 G 16 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Fri May 02 2025 36F 31F / 61% SSE 10 G 17 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Fri May 02 2025 40F 32F / 57% S 8 G 15 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Fri May 02 2025 42F 34F / 58% SSW 7 G 14 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Fri May 02 2025 44F 36F / 57% WSW 5 G 10 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Fri May 02 2025 46F 37F / 55% W 5 G 9 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Fri May 02 2025 46F 38F / 39% WSW 6 G 11 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Fri May 02 2025 45F 38F / 44% SW 6 G 12 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Fri May 02 2025 43F 38F / 43% SW 7 G 13 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Fri May 02 2025 41F 37F / 52% SSW 9 G 14 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Fri May 02 2025 39F 35F / 48% S 9 G 15 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Fri May 02 2025 37F 35F / 40% S 11 G 18 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Fri May 02 2025 37F 35F / 38% SSW 11 G 18 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Fri May 02 2025 37F 35F / 40% S 12 G 19 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sat May 03 2025 36F 35F / 47% S 13 G 20 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sat May 03 2025 37F 36F / 46% S 15 G 23 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sat May 03 2025 37F 36F / 44% S 15 G 24 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sat May 03 2025 36F 36F / 46% S 17 G 25 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sat May 03 2025 36F 35F / 44% SSW 16 G 27 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sat May 03 2025 36F 35F / 44% SSW 17 G 26 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sat May 03 2025 36F 35F / 44% SSW 18 G 26 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sat May 03 2025 35F 35F / 47% SSW 16 G 24 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sat May 03 2025 36F 35F / 45% SSW 16 G 22 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sat May 03 2025 38F 37F / 48% SW 13 G 19 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sat May 03 2025 40F 37F / 48% SSW 11 G 20 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sat May 03 2025 45F 38F / 46% SSW 9 G 15 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sat May 03 2025 48F 40F / 42% S 6 G 15 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"