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 15-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 AM Thu May 15 2025 24F 19F / 93% WNW 21 G 32 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Thu May 15 2025 25F 19F / 94% WNW 20 G 29 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Thu May 15 2025 25F 19F / 98% W 20 G 30 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Thu May 15 2025 25F 19F / 99% W 20 G 30 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Thu May 15 2025 26F 19F / 100% W 18 G 28 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Thu May 15 2025 29F 20F / 100% W 19 G 29 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Thu May 15 2025 31F 22F / 83% W 18 G 29 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Thu May 15 2025 32F 23F / 86% W 17 G 27 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Thu May 15 2025 35F 24F / 82% W 19 G 30 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Thu May 15 2025 35F 24F / 80% W 20 G 33 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Thu May 15 2025 35F 24F / 78% W 21 G 33 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Thu May 15 2025 34F 24F / 73% W 21 G 33 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Thu May 15 2025 33F 24F / 74% W 21 G 32 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Thu May 15 2025 32F 24F / 76% W 23 G 36 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Thu May 15 2025 30F 24F / 72% W 24 G 37 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Thu May 15 2025 29F 24F / 74% W 24 G 36 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Thu May 15 2025 29F 24F / 65% W 23 G 36 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Thu May 15 2025 29F 24F / 68% WNW 23 G 34 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Fri May 16 2025 29F 25F / 67% WNW 25 G 36 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Fri May 16 2025 29F 24F / 61% WNW 25 G 36 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Fri May 16 2025 28F 24F / 60% WNW 25 G 36 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Fri May 16 2025 28F 24F / 56% WNW 23 G 35 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Fri May 16 2025 29F 24F / 55% WNW 25 G 36 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Fri May 16 2025 29F 24F / 55% W 24 G 36 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Fri May 16 2025 29F 24F / 54% W 25 G 37 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Fri May 16 2025 28F 24F / 57% W 25 G 36 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Fri May 16 2025 29F 24F / 59% W 26 G 36 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Fri May 16 2025 30F 25F / 65% W 24 G 35 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Fri May 16 2025 31F 25F / 66% W 20 G 31 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Fri May 16 2025 33F 26F / 63% W 19 G 28 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Fri May 16 2025 35F 28F / 61% W 16 G 27 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Fri May 16 2025 37F 29F / 60% W 15 G 25 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Fri May 16 2025 39F 30F / 60% W 13 G 22 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Fri May 16 2025 39F 30F / 60% W 11 G 20 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Fri May 16 2025 38F 30F / 63% W 11 G 20 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Fri May 16 2025 39F 31F / 64% W 13 G 20 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Fri May 16 2025 37F 30F / 66% W 13 G 20 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Fri May 16 2025 37F 32F / 64% W 11 G 19 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Fri May 16 2025 35F 32F / 68% WSW 14 G 21 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Fri May 16 2025 34F 31F / 63% WSW 15 G 24 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Fri May 16 2025 34F 31F / 70% SW 17 G 27 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Fri May 16 2025 34F 31F / 66% SW 15 G 26 MPH 9100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Sat May 17 2025 34F 31F / 66% SW 18 G 29 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Sat May 17 2025 33F 31F / 72% SW 16 G 28 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Sat May 17 2025 34F 30F / 79% SW 20 G 33 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Sat May 17 2025 34F 30F / 72% SW 20 G 34 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Sat May 17 2025 34F 30F / 67% SW 22 G 40 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Sat May 17 2025 34F 30F / 69% SW 24 G 42 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Sat May 17 2025 32F 29F / 81% WSW 21 G 37 MPH 9600 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1"