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 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 12 PM Fri May 09 2025 49F 41F / 35% ENE 5 G 9 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri May 09 2025 51F 43F / 48% NNW 5 G 8 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Fri May 09 2025 54F 43F / 38% NNE 5 G 10 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Fri May 09 2025 54F 45F / 42% NNW 6 G 11 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Fri May 09 2025 53F 45F / 40% NW 6 G 10 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Fri May 09 2025 52F 46F / 40% WNW 6 G 13 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Fri May 09 2025 50F 46F / 37% WNW 6 G 12 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Fri May 09 2025 48F 44F / 41% WNW 9 G 13 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Fri May 09 2025 44F 42F / 39% NW 9 G 15 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Fri May 09 2025 42F 41F / 37% WNW 8 G 10 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Fri May 09 2025 42F 41F / 29% SSE 9 G 13 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Fri May 09 2025 42F 41F / 38% SE 10 G 15 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Sat May 10 2025 43F 42F / 31% SE 11 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Sat May 10 2025 43F 42F / 33% SSE 11 G 19 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Sat May 10 2025 43F 41F / 39% SSE 11 G 18 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Sat May 10 2025 42F 40F / 43% SSE 13 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Sat May 10 2025 41F 40F / 45% SSE 14 G 23 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Sat May 10 2025 39F 39F / 46% S 15 G 25 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Sat May 10 2025 39F 39F / 41% SSW 16 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Sat May 10 2025 38F 39F / 37% SSW 16 G 22 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Sat May 10 2025 39F 39F / 36% SSW 15 G 21 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Sat May 10 2025 40F 40F / 43% SW 14 G 21 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Sat May 10 2025 44F 41F / 40% SW 12 G 17 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Sat May 10 2025 48F 42F / 41% SW 10 G 16 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Sat May 10 2025 51F 44F / 41% WSW 9 G 15 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Sat May 10 2025 53F 45F / 38% SSW 10 G 14 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Sat May 10 2025 55F 46F / 26% SW 6 G 14 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Sat May 10 2025 56F 47F / 31% W 6 G 12 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Sat May 10 2025 56F 47F / 28% SSW 8 G 17 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Sat May 10 2025 54F 47F / 36% SSW 9 G 19 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Sat May 10 2025 51F 47F / 40% SSW 10 G 20 MPH 11900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Sat May 10 2025 49F 46F / 39% SW 12 G 21 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Sat May 10 2025 46F 44F / 34% SW 15 G 27 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Sat May 10 2025 45F 44F / 25% SW 16 G 27 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Sat May 10 2025 46F 44F / 25% SW 16 G 28 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Sat May 10 2025 44F 43F / 26% SSW 17 G 29 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sun May 11 2025 43F 42F / 32% SSW 19 G 33 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sun May 11 2025 43F 43F / 33% SSW 22 G 38 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sun May 11 2025 42F 42F / 38% SSW 20 G 34 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sun May 11 2025 41F 41F / 31% SSW 22 G 39 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sun May 11 2025 41F 41F / 36% SSW 24 G 39 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sun May 11 2025 40F 40F / 32% SW 24 G 42 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sun May 11 2025 40F 40F / 30% SW 25 G 45 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sun May 11 2025 40F 39F / 42% SW 25 G 42 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sun May 11 2025 41F 39F / 32% SW 25 G 42 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sun May 11 2025 41F 40F / 38% SW 23 G 44 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sun May 11 2025 44F 40F / 37% SW 22 G 40 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sun May 11 2025 47F 40F / 43% SSW 21 G 40 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sun May 11 2025 50F 42F / 45% SSW 20 G 40 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"