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 18Z 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 PM Thu May 22 2025 49F 40F / 40% SSW 22 G 43 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Thu May 22 2025 51F 41F / 41% SSW 20 G 41 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Thu May 22 2025 54F 42F / 34% SSW 20 G 40 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Thu May 22 2025 55F 45F / 26% SW 20 G 41 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Thu May 22 2025 56F 46F / 26% SW 20 G 38 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Thu May 22 2025 52F 44F / 30% SSW 20 G 37 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Thu May 22 2025 51F 45F / 35% W 15 G 26 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Thu May 22 2025 48F 42F / 35% W 17 G 28 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Thu May 22 2025 44F 41F / 38% W 19 G 29 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Thu May 22 2025 42F 39F / 34% WNW 18 G 29 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Thu May 22 2025 41F 39F / 34% W 17 G 27 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Thu May 22 2025 41F 39F / 34% W 16 G 22 MPH 10000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Fri May 23 2025 40F 38F / 27% W 16 G 24 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Fri May 23 2025 40F 38F / 24% W 18 G 26 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Fri May 23 2025 40F 38F / 23% W 18 G 26 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Fri May 23 2025 40F 38F / 23% W 18 G 25 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Fri May 23 2025 39F 37F / 26% WSW 17 G 24 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Fri May 23 2025 39F 37F / 25% W 16 G 24 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Fri May 23 2025 39F 37F / 25% WSW 16 G 24 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Fri May 23 2025 38F 36F / 28% WSW 17 G 23 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Fri May 23 2025 39F 37F / 28% WSW 15 G 23 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Fri May 23 2025 41F 37F / 35% SW 13 G 20 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Fri May 23 2025 44F 37F / 47% SW 9 G 17 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Fri May 23 2025 47F 39F / 34% SSW 10 G 19 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Fri May 23 2025 51F 41F / 42% SW 9 G 19 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Fri May 23 2025 52F 42F / 35% SSW 10 G 20 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Fri May 23 2025 54F 43F / 32% SW 10 G 20 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Fri May 23 2025 55F 44F / 30% SW 13 G 25 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Fri May 23 2025 56F 44F / 33% SW 10 G 22 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Fri May 23 2025 55F 45F / 36% WSW 12 G 22 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Fri May 23 2025 52F 45F / 37% WSW 13 G 23 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Fri May 23 2025 49F 43F / 38% WSW 14 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Fri May 23 2025 45F 41F / 47% WSW 13 G 22 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Fri May 23 2025 43F 41F / 37% SW 14 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Fri May 23 2025 42F 40F / 34% SW 13 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Fri May 23 2025 41F 40F / 41% SSW 12 G 18 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sat May 24 2025 40F 39F / 41% SSW 12 G 20 MPH 9900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sat May 24 2025 41F 40F / 39% SSW 15 G 23 MPH 9900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sat May 24 2025 41F 40F / 36% SW 13 G 19 MPH 9900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sat May 24 2025 42F 40F / 37% SW 13 G 20 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sat May 24 2025 41F 40F / 32% SW 16 G 21 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sat May 24 2025 40F 39F / 29% SW 17 G 24 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sat May 24 2025 41F 39F / 33% SW 14 G 18 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sat May 24 2025 40F 39F / 33% WSW 13 G 17 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sat May 24 2025 40F 39F / 34% WSW 12 G 16 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sat May 24 2025 42F 41F / 32% WSW 11 G 15 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sat May 24 2025 44F 40F / 38% S 8 G 13 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sat May 24 2025 49F 42F / 47% W 6 G 10 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sat May 24 2025 52F 44F / 46% SSW 4 G 11 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"