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-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 06 PM Thu May 15 2025 32F 24F / 85% W 20 G 32 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Thu May 15 2025 31F 25F / 77% W 21 G 32 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Thu May 15 2025 30F 25F / 76% W 22 G 33 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Thu May 15 2025 30F 25F / 69% W 25 G 38 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Thu May 15 2025 30F 25F / 64% W 26 G 39 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Thu May 15 2025 30F 25F / 69% WNW 24 G 36 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Fri May 16 2025 29F 25F / 70% WNW 24 G 35 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Fri May 16 2025 29F 25F / 73% WNW 25 G 36 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Fri May 16 2025 30F 25F / 71% WNW 24 G 36 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Fri May 16 2025 30F 25F / 67% WNW 24 G 34 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Fri May 16 2025 29F 25F / 64% WNW 22 G 32 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Fri May 16 2025 30F 25F / 63% W 22 G 32 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Fri May 16 2025 29F 25F / 62% W 21 G 31 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Fri May 16 2025 29F 25F / 65% W 20 G 29 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Fri May 16 2025 30F 25F / 66% W 20 G 29 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Fri May 16 2025 30F 25F / 70% W 20 G 29 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Fri May 16 2025 31F 25F / 73% W 18 G 28 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Fri May 16 2025 33F 26F / 73% W 17 G 27 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Fri May 16 2025 35F 27F / 68% W 15 G 24 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Fri May 16 2025 37F 29F / 72% W 13 G 22 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Fri May 16 2025 39F 30F / 74% W 12 G 20 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Fri May 16 2025 40F 31F / 74% W 11 G 21 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Fri May 16 2025 40F 31F / 72% W 11 G 19 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Fri May 16 2025 40F 31F / 76% W 12 G 21 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Fri May 16 2025 39F 32F / 73% W 13 G 21 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Fri May 16 2025 37F 31F / 73% W 13 G 20 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Fri May 16 2025 35F 30F / 75% W 14 G 19 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Fri May 16 2025 33F 29F / 73% WSW 17 G 25 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Fri May 16 2025 33F 30F / 69% WSW 17 G 26 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Fri May 16 2025 33F 30F / 70% WSW 18 G 27 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sat May 17 2025 33F 30F / 73% WSW 18 G 27 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sat May 17 2025 34F 31F / 65% WSW 17 G 27 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sat May 17 2025 34F 31F / 64% WSW 17 G 26 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sat May 17 2025 34F 30F / 65% WSW 15 G 24 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sat May 17 2025 35F 30F / 66% SW 15 G 25 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sat May 17 2025 33F 29F / 82% WSW 20 G 35 MPH 9600 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 36 06 AM Sat May 17 2025 34F 29F / 82% SW 15 G 25 MPH 9700 FT 9:1 / 11% 0.01" / 0.1" 0.02" / 0.2" 37 07 AM Sat May 17 2025 35F 30F / 73% SSE 13 G 20 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 38 08 AM Sat May 17 2025 33F 29F / 83% S 12 G 23 MPH 9700 FT 7:1 / 14% 0.02" / 0.1" 0.04" / 0.3" 39 09 AM Sat May 17 2025 35F 30F / 79% S 18 G 33 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.04" / 0.3" 40 10 AM Sat May 17 2025 37F 31F / 74% S 20 G 36 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.04" / 0.3" 41 11 AM Sat May 17 2025 41F 32F / 75% S 19 G 35 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.04" / 0.3" 42 12 PM Sat May 17 2025 44F 36F / 61% SSW 18 G 37 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.04" / 0.3" 43 01 PM Sat May 17 2025 45F 36F / 54% SSW 18 G 37 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.04" / 0.3" 44 02 PM Sat May 17 2025 46F 37F / 53% SSW 14 G 32 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.04" / 0.3" 45 03 PM Sat May 17 2025 47F 38F / 49% S 14 G 32 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.04" / 0.3" 46 04 PM Sat May 17 2025 47F 39F / 59% SSW 14 G 31 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.04" / 0.3" 47 05 PM Sat May 17 2025 44F 36F / 67% SW 15 G 29 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.04" / 0.3" 48 06 PM Sat May 17 2025 42F 35F / 71% SW 14 G 27 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.04" / 0.3"