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 08-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 08 2025 46F 37F / 66% NW 8 G 13 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Thu May 08 2025 47F 38F / 69% WNW 8 G 13 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Thu May 08 2025 49F 39F / 68% WNW 10 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Thu May 08 2025 50F 40F / 62% WNW 11 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Thu May 08 2025 50F 41F / 52% WNW 10 G 17 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Thu May 08 2025 48F 41F / 55% WNW 11 G 19 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Thu May 08 2025 46F 41F / 52% WNW 13 G 19 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Thu May 08 2025 44F 39F / 54% WNW 12 G 17 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Thu May 08 2025 41F 38F / 50% WNW 11 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Thu May 08 2025 39F 37F / 49% W 13 G 17 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Thu May 08 2025 38F 37F / 49% W 13 G 18 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Thu May 08 2025 39F 37F / 52% W 14 G 18 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Fri May 09 2025 38F 37F / 50% W 13 G 17 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Fri May 09 2025 38F 36F / 50% WNW 14 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Fri May 09 2025 37F 36F / 47% WNW 14 G 17 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Fri May 09 2025 36F 36F / 46% E 14 G 17 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Fri May 09 2025 36F 35F / 48% NNW 15 G 19 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Fri May 09 2025 36F 35F / 48% NNW 18 G 24 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Fri May 09 2025 36F 35F / 48% N 18 G 25 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Fri May 09 2025 36F 35F / 46% N 19 G 25 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Fri May 09 2025 36F 35F / 40% N 17 G 24 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Fri May 09 2025 38F 37F / 44% N 17 G 23 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Fri May 09 2025 41F 37F / 42% NNE 12 G 20 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Fri May 09 2025 45F 38F / 36% NNE 10 G 17 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Fri May 09 2025 48F 40F / 36% NNW 8 G 15 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Fri May 09 2025 50F 41F / 46% NW 10 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Fri May 09 2025 53F 43F / 39% NW 9 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Fri May 09 2025 54F 44F / 34% NW 11 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Fri May 09 2025 54F 45F / 45% NW 11 G 17 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Fri May 09 2025 53F 45F / 35% WNW 10 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Fri May 09 2025 49F 45F / 37% WNW 11 G 16 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Fri May 09 2025 47F 44F / 57% NW 11 G 17 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Fri May 09 2025 44F 41F / 49% WNW 12 G 17 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Fri May 09 2025 42F 41F / 38% W 11 G 15 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Fri May 09 2025 42F 42F / 33% WNW 11 G 15 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Fri May 09 2025 42F 41F / 29% W 11 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sat May 10 2025 42F 42F / 24% WNW 10 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sat May 10 2025 43F 44F / 24% S 13 G 17 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sat May 10 2025 43F 44F / 27% SSW 13 G 19 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sat May 10 2025 43F 44F / 21% SSW 14 G 17 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sat May 10 2025 43F 44F / 19% SSW 13 G 18 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sat May 10 2025 42F 43F / 15% WSW 13 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sat May 10 2025 42F 43F / 15% SW 14 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sat May 10 2025 41F 41F / 30% WSW 14 G 19 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sat May 10 2025 39F 40F / 31% WSW 14 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sat May 10 2025 41F 42F / 39% W 12 G 17 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sat May 10 2025 44F 43F / 29% WSW 10 G 16 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sat May 10 2025 49F 44F / 30% WSW 10 G 14 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sat May 10 2025 52F 45F / 33% SW 8 G 15 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"