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 23-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 Fri May 23 2025 37F 36F / 51% SW 12 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Fri May 23 2025 38F 37F / 43% SW 11 G 16 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Fri May 23 2025 39F 37F / 46% SW 11 G 16 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Fri May 23 2025 41F 38F / 45% SW 11 G 17 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Fri May 23 2025 44F 38F / 54% SSW 10 G 17 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Fri May 23 2025 48F 39F / 67% SW 8 G 16 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Fri May 23 2025 51F 40F / 51% SW 10 G 19 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Fri May 23 2025 51F 41F / 43% SW 10 G 18 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Fri May 23 2025 54F 43F / 39% SW 9 G 18 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Fri May 23 2025 54F 44F / 38% WSW 8 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Fri May 23 2025 54F 45F / 36% W 6 G 13 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Fri May 23 2025 54F 45F / 39% WSW 10 G 18 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Fri May 23 2025 52F 44F / 40% WSW 11 G 19 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Fri May 23 2025 49F 43F / 38% WSW 11 G 18 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Fri May 23 2025 46F 42F / 38% SW 13 G 20 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Fri May 23 2025 42F 41F / 39% SW 12 G 19 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Fri May 23 2025 41F 41F / 34% SSW 12 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Fri May 23 2025 40F 39F / 38% S 11 G 15 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sat May 24 2025 40F 40F / 36% S 11 G 19 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sat May 24 2025 39F 39F / 35% S 11 G 19 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sat May 24 2025 38F 38F / 37% SSW 13 G 20 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sat May 24 2025 39F 38F / 40% SSW 14 G 19 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sat May 24 2025 40F 39F / 35% SW 14 G 21 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sat May 24 2025 41F 39F / 36% WSW 15 G 22 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sat May 24 2025 40F 38F / 36% WSW 15 G 20 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sat May 24 2025 39F 38F / 37% WSW 14 G 19 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sat May 24 2025 40F 38F / 45% SW 12 G 18 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sat May 24 2025 41F 38F / 43% SW 11 G 16 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sat May 24 2025 44F 39F / 36% SSW 9 G 16 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sat May 24 2025 47F 40F / 37% SSW 9 G 17 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sat May 24 2025 50F 42F / 38% SW 9 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sat May 24 2025 53F 44F / 32% SW 9 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sat May 24 2025 55F 45F / 27% SW 9 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sat May 24 2025 56F 46F / 26% SW 7 G 15 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sat May 24 2025 56F 45F / 29% WSW 7 G 15 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sat May 24 2025 52F 43F / 45% W 12 G 22 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sat May 24 2025 49F 42F / 45% WSW 8 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sat May 24 2025 50F 45F / 35% SW 9 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sat May 24 2025 46F 44F / 36% WSW 10 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sat May 24 2025 43F 41F / 40% SW 10 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sat May 24 2025 43F 42F / 42% SSW 12 G 18 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sat May 24 2025 41F 41F / 38% SSW 10 G 15 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Sun May 25 2025 41F 39F / 46% SSW 13 G 16 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Sun May 25 2025 39F 39F / 54% WSW 11 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Sun May 25 2025 40F 39F / 51% WSW 10 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Sun May 25 2025 40F 39F / 41% SW 12 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Sun May 25 2025 42F 41F / 33% SW 13 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Sun May 25 2025 39F 39F / 41% WSW 13 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Sun May 25 2025 38F 38F / 52% SSW 14 G 18 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"