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 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 06 PM Wed May 21 2025 42F 37F / 40% W 11 G 17 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed May 21 2025 40F 36F / 41% W 14 G 19 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Wed May 21 2025 37F 35F / 39% W 17 G 23 MPH 8800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Wed May 21 2025 36F 35F / 18% W 17 G 23 MPH 8600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Wed May 21 2025 37F 35F / 12% WSW 17 G 24 MPH 8500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Wed May 21 2025 37F 36F / 14% WSW 17 G 23 MPH 8800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Thu May 22 2025 38F 36F / 16% WSW 16 G 22 MPH 9000 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Thu May 22 2025 38F 37F / 23% WSW 16 G 23 MPH 9200 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Thu May 22 2025 39F 37F / 26% SW 15 G 25 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Thu May 22 2025 39F 37F / 29% SSW 17 G 28 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Thu May 22 2025 39F 37F / 31% SSW 19 G 33 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Thu May 22 2025 38F 37F / 36% SSW 21 G 35 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Thu May 22 2025 37F 37F / 42% SSW 23 G 37 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Thu May 22 2025 37F 37F / 43% SW 23 G 39 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Thu May 22 2025 39F 37F / 39% SW 23 G 38 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Thu May 22 2025 40F 38F / 42% SW 21 G 36 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Thu May 22 2025 43F 39F / 41% SSW 20 G 35 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Thu May 22 2025 46F 41F / 36% SW 20 G 38 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Thu May 22 2025 49F 41F / 36% SSW 20 G 39 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Thu May 22 2025 52F 42F / 39% SSW 19 G 39 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Thu May 22 2025 55F 44F / 32% SW 20 G 38 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Thu May 22 2025 56F 46F / 24% SW 19 G 37 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Thu May 22 2025 56F 45F / 26% SW 19 G 36 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Thu May 22 2025 54F 46F / 32% SW 16 G 30 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Thu May 22 2025 51F 44F / 34% W 13 G 26 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Thu May 22 2025 48F 43F / 36% W 13 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Thu May 22 2025 44F 41F / 37% W 18 G 27 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Thu May 22 2025 43F 40F / 33% W 18 G 30 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Thu May 22 2025 41F 39F / 26% W 19 G 28 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Thu May 22 2025 40F 38F / 27% W 17 G 26 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Fri May 23 2025 40F 38F / 26% W 17 G 25 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Fri May 23 2025 40F 38F / 30% W 17 G 26 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Fri May 23 2025 40F 37F / 32% W 18 G 25 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Fri May 23 2025 39F 36F / 33% W 18 G 24 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Fri May 23 2025 39F 36F / 34% W 18 G 26 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Fri May 23 2025 38F 36F / 33% W 18 G 26 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Fri May 23 2025 38F 36F / 33% WSW 17 G 24 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Fri May 23 2025 38F 37F / 31% WSW 18 G 25 MPH 9700 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Fri May 23 2025 39F 38F / 25% WSW 17 G 25 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Fri May 23 2025 41F 39F / 30% WSW 16 G 25 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Fri May 23 2025 44F 39F / 45% WSW 12 G 19 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Fri May 23 2025 47F 40F / 43% WSW 10 G 17 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Fri May 23 2025 50F 42F / 39% SW 11 G 21 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Fri May 23 2025 52F 43F / 38% SW 12 G 21 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Fri May 23 2025 54F 45F / 38% WSW 10 G 20 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Fri May 23 2025 55F 46F / 37% WSW 11 G 22 MPH 10300 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Fri May 23 2025 55F 46F / 41% WSW 11 G 23 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Fri May 23 2025 56F 46F / 31% WSW 13 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Fri May 23 2025 53F 46F / 29% WSW 14 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"