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 22-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 Thu May 22 2025 38F 36F / 15% WSW 16 G 21 MPH 8700 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Thu May 22 2025 39F 36F / 17% WSW 15 G 23 MPH 8900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Thu May 22 2025 39F 37F / 28% SW 16 G 26 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Thu May 22 2025 39F 37F / 33% SSW 20 G 35 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Thu May 22 2025 39F 37F / 34% SSW 21 G 37 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Thu May 22 2025 38F 36F / 37% SSW 22 G 38 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Thu May 22 2025 37F 36F / 43% SSW 22 G 39 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Thu May 22 2025 37F 36F / 44% SSW 23 G 40 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Thu May 22 2025 38F 37F / 42% SSW 24 G 40 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Thu May 22 2025 40F 38F / 44% SSW 22 G 37 MPH 10200 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Thu May 22 2025 43F 38F / 43% SSW 20 G 37 MPH 10200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Thu May 22 2025 47F 40F / 38% SSW 20 G 38 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Thu May 22 2025 50F 41F / 36% SSW 21 G 40 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Thu May 22 2025 53F 42F / 39% SSW 20 G 40 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Thu May 22 2025 55F 44F / 30% SW 20 G 40 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Thu May 22 2025 56F 45F / 24% SW 20 G 38 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Thu May 22 2025 56F 46F / 25% SW 19 G 37 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Thu May 22 2025 55F 46F / 27% SW 18 G 33 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Thu May 22 2025 52F 45F / 31% W 16 G 25 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Thu May 22 2025 49F 44F / 34% W 15 G 24 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Thu May 22 2025 45F 41F / 37% W 16 G 25 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Thu May 22 2025 43F 41F / 29% W 19 G 30 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Thu May 22 2025 42F 40F / 22% WNW 19 G 31 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Thu May 22 2025 41F 39F / 25% WNW 18 G 29 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Fri May 23 2025 41F 39F / 21% W 18 G 29 MPH 9900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Fri May 23 2025 40F 38F / 21% W 18 G 27 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Fri May 23 2025 40F 38F / 21% W 17 G 25 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Fri May 23 2025 39F 37F / 33% W 17 G 23 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Fri May 23 2025 38F 36F / 37% W 17 G 26 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Fri May 23 2025 38F 36F / 40% W 17 G 25 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Fri May 23 2025 37F 35F / 39% W 19 G 25 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Fri May 23 2025 37F 35F / 40% WSW 18 G 26 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Fri May 23 2025 38F 35F / 35% WSW 17 G 24 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Fri May 23 2025 40F 36F / 46% WSW 15 G 23 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Fri May 23 2025 42F 36F / 57% SW 11 G 18 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Fri May 23 2025 46F 38F / 48% SW 10 G 17 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Fri May 23 2025 49F 40F / 42% SW 11 G 20 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Fri May 23 2025 52F 43F / 32% SW 11 G 22 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Fri May 23 2025 54F 45F / 35% WSW 11 G 21 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Fri May 23 2025 55F 46F / 34% WSW 11 G 22 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Fri May 23 2025 56F 46F / 36% WSW 12 G 23 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Fri May 23 2025 56F 46F / 36% WSW 12 G 22 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Fri May 23 2025 53F 46F / 28% WSW 14 G 23 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Fri May 23 2025 49F 44F / 35% WSW 15 G 25 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Fri May 23 2025 46F 43F / 48% WSW 16 G 24 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Fri May 23 2025 43F 41F / 41% WSW 14 G 22 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Fri May 23 2025 41F 40F / 37% WSW 15 G 21 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Fri May 23 2025 40F 40F / 37% SSW 14 G 20 MPH 9900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Sat May 24 2025 40F 39F / 30% S 12 G 19 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"