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 09-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 09 2025 36F 35F / 53% NNE 12 G 14 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Fri May 09 2025 36F 35F / 59% NE 14 G 20 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Fri May 09 2025 35F 35F / 54% NE 15 G 21 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Fri May 09 2025 38F 37F / 50% NE 14 G 22 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Fri May 09 2025 41F 38F / 39% ENE 13 G 22 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Fri May 09 2025 45F 39F / 33% ENE 11 G 20 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Fri May 09 2025 48F 40F / 31% ENE 9 G 16 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Fri May 09 2025 50F 41F / 43% NE 6 G 11 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Fri May 09 2025 52F 43F / 33% NW 6 G 11 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Fri May 09 2025 54F 44F / 29% NW 7 G 12 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Fri May 09 2025 53F 45F / 28% WNW 8 G 12 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Fri May 09 2025 53F 46F / 33% NW 8 G 12 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Fri May 09 2025 50F 45F / 28% NW 8 G 14 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Fri May 09 2025 47F 44F / 37% WNW 9 G 15 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Fri May 09 2025 44F 42F / 32% NW 9 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Fri May 09 2025 42F 41F / 42% NNW 9 G 13 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Fri May 09 2025 42F 42F / 28% SE 10 G 14 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Fri May 09 2025 43F 42F / 21% ESE 10 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sat May 10 2025 42F 42F / 27% ESE 10 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sat May 10 2025 42F 41F / 26% SE 11 G 19 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sat May 10 2025 43F 41F / 33% SE 12 G 21 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sat May 10 2025 42F 41F / 31% SSE 13 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sat May 10 2025 42F 41F / 27% S 14 G 25 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sat May 10 2025 40F 40F / 39% S 17 G 26 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sat May 10 2025 39F 39F / 42% SSW 18 G 26 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sat May 10 2025 38F 38F / 38% SSW 17 G 25 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sat May 10 2025 39F 39F / 32% SW 16 G 22 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sat May 10 2025 41F 40F / 37% WSW 15 G 20 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sat May 10 2025 44F 42F / 37% WSW 12 G 18 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sat May 10 2025 48F 43F / 34% WSW 10 G 17 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sat May 10 2025 51F 44F / 37% WSW 9 G 16 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sat May 10 2025 53F 45F / 38% WSW 8 G 17 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sat May 10 2025 55F 47F / 27% SW 8 G 17 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sat May 10 2025 56F 47F / 33% SW 6 G 13 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sat May 10 2025 55F 47F / 28% SSW 8 G 18 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sat May 10 2025 54F 47F / 36% SW 10 G 18 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sat May 10 2025 51F 47F / 40% SW 10 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sat May 10 2025 49F 47F / 36% SSW 14 G 24 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sat May 10 2025 47F 45F / 38% SSW 15 G 27 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sat May 10 2025 45F 45F / 30% SW 16 G 27 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sat May 10 2025 45F 45F / 27% SSW 18 G 30 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sat May 10 2025 44F 44F / 28% SSW 17 G 32 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Sun May 11 2025 44F 43F / 30% SSW 19 G 35 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Sun May 11 2025 43F 42F / 35% SSW 21 G 38 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Sun May 11 2025 42F 42F / 36% SSW 20 G 35 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Sun May 11 2025 42F 41F / 36% SSW 22 G 36 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Sun May 11 2025 41F 40F / 31% SSW 24 G 39 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Sun May 11 2025 40F 40F / 32% SW 24 G 41 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Sun May 11 2025 40F 39F / 36% SW 24 G 40 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"