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 06Z 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 12 AM Fri May 16 2025 29F 24F / 56% W 22 G 32 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Fri May 16 2025 29F 25F / 49% W 26 G 36 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Fri May 16 2025 28F 24F / 50% WNW 25 G 35 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Fri May 16 2025 29F 24F / 52% WNW 23 G 32 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Fri May 16 2025 29F 25F / 53% W 23 G 32 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Fri May 16 2025 29F 24F / 54% W 21 G 30 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Fri May 16 2025 29F 25F / 56% W 19 G 28 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Fri May 16 2025 29F 25F / 59% W 19 G 28 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Fri May 16 2025 29F 25F / 58% WSW 20 G 28 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Fri May 16 2025 31F 26F / 59% WSW 19 G 27 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Fri May 16 2025 32F 25F / 55% WSW 17 G 27 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Fri May 16 2025 34F 27F / 61% W 16 G 27 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Fri May 16 2025 36F 27F / 69% W 15 G 24 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Fri May 16 2025 37F 29F / 70% W 14 G 24 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Fri May 16 2025 39F 29F / 72% W 14 G 24 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Fri May 16 2025 39F 30F / 68% W 14 G 22 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Fri May 16 2025 40F 30F / 67% W 13 G 22 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Fri May 16 2025 40F 31F / 67% W 15 G 24 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Fri May 16 2025 39F 31F / 67% W 15 G 22 MPH 9000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Fri May 16 2025 37F 31F / 68% W 14 G 21 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Fri May 16 2025 35F 29F / 72% W 15 G 21 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Fri May 16 2025 33F 29F / 67% W 18 G 24 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Fri May 16 2025 33F 30F / 62% WSW 18 G 26 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Fri May 16 2025 33F 30F / 63% WSW 17 G 25 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sat May 17 2025 33F 30F / 65% WSW 17 G 25 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sat May 17 2025 34F 31F / 59% WSW 16 G 25 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sat May 17 2025 35F 31F / 57% WSW 17 G 26 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sat May 17 2025 35F 31F / 58% WSW 16 G 24 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sat May 17 2025 35F 31F / 63% SW 18 G 30 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sat May 17 2025 35F 31F / 64% SW 20 G 35 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sat May 17 2025 34F 31F / 69% SW 17 G 28 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sat May 17 2025 34F 30F / 69% SSW 16 G 28 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sat May 17 2025 35F 31F / 66% SSW 20 G 32 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sat May 17 2025 36F 31F / 64% S 21 G 40 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sat May 17 2025 38F 31F / 58% SSW 23 G 44 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sat May 17 2025 41F 32F / 59% S 18 G 37 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sat May 17 2025 44F 34F / 53% SSW 17 G 38 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sat May 17 2025 46F 37F / 50% S 18 G 38 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sat May 17 2025 46F 37F / 48% SSW 16 G 37 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sat May 17 2025 47F 39F / 50% SSW 16 G 36 MPH 9900 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sat May 17 2025 46F 37F / 54% SSW 15 G 33 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sat May 17 2025 46F 38F / 53% SSW 14 G 29 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sat May 17 2025 43F 36F / 68% SW 10 G 19 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sat May 17 2025 36F 31F / 100% SW 13 G 26 MPH 10100 FT 5:1 / 20% 0.07" / 0.4" 0.07" / 0.4" 44 08 PM Sat May 17 2025 37F 32F / 100% SSW 16 G 32 MPH 10000 FT 7:1 / 14% 0.02" / 0.1" 0.09" / 0.5" 45 09 PM Sat May 17 2025 35F 30F / 100% SSW 13 G 29 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.09" / 0.5" 46 10 PM Sat May 17 2025 33F 28F / 100% SW 9 G 18 MPH 9500 FT 9:1 / 11% 0.12" / 1.1" 0.21" / 1.6" 47 11 PM Sat May 17 2025 31F 27F / 100% W 15 G 29 MPH 8600 FT 9:1 / 11% 0.24" / 2.2" 0.45" / 3.8" 48 12 AM Sun May 18 2025 30F 25F / 99% WSW 12 G 23 MPH 8200 FT 11:1 / 9% 0.10" / 1.1" 0.55" / 4.9"