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 05-Jun-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 Thu Jun 05 2025 35F 33F / 50% WSW 15 G 24 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Thu Jun 05 2025 36F 34F / 57% SW 15 G 23 MPH 9300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Thu Jun 05 2025 37F 34F / 58% SW 14 G 23 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Thu Jun 05 2025 39F 35F / 85% SSW 15 G 27 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Thu Jun 05 2025 42F 36F / 87% S 15 G 28 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Thu Jun 05 2025 45F 37F / 83% SSW 13 G 24 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Thu Jun 05 2025 48F 39F / 76% SSW 12 G 24 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Thu Jun 05 2025 50F 41F / 70% SW 12 G 23 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Thu Jun 05 2025 52F 42F / 64% SW 13 G 30 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Thu Jun 05 2025 50F 40F / 75% W 12 G 22 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Thu Jun 05 2025 52F 42F / 61% W 12 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Thu Jun 05 2025 52F 42F / 52% W 12 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Thu Jun 05 2025 49F 42F / 49% W 15 G 24 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Thu Jun 05 2025 47F 40F / 46% W 15 G 22 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Thu Jun 05 2025 43F 39F / 44% W 17 G 25 MPH 10300 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Thu Jun 05 2025 41F 37F / 42% W 18 G 24 MPH 10300 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Thu Jun 05 2025 40F 37F / 36% W 18 G 25 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Thu Jun 05 2025 41F 38F / 31% W 16 G 22 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Fri Jun 06 2025 40F 38F / 31% WSW 15 G 22 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Fri Jun 06 2025 41F 37F / 27% WSW 17 G 25 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Fri Jun 06 2025 38F 36F / 54% SW 18 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Fri Jun 06 2025 38F 36F / 42% WSW 15 G 22 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Fri Jun 06 2025 38F 36F / 45% WSW 14 G 22 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Fri Jun 06 2025 37F 35F / 52% WSW 15 G 24 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Fri Jun 06 2025 37F 35F / 65% WSW 16 G 24 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Fri Jun 06 2025 38F 35F / 64% WSW 14 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Fri Jun 06 2025 39F 36F / 65% WSW 15 G 22 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Fri Jun 06 2025 40F 36F / 78% W 11 G 19 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Fri Jun 06 2025 41F 35F / 78% WSW 9 G 14 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Fri Jun 06 2025 40F 34F / 90% WSW 18 G 25 MPH 11300 FT 0:1 / -% 0.03" / 0.0" 0.03" / 0.0" 30 12 PM Fri Jun 06 2025 45F 37F / 78% W 14 G 24 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 31 01 PM Fri Jun 06 2025 49F 39F / 73% W 14 G 24 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 32 02 PM Fri Jun 06 2025 52F 41F / 56% W 14 G 24 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 33 03 PM Fri Jun 06 2025 54F 42F / 45% WNW 16 G 29 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 34 04 PM Fri Jun 06 2025 54F 43F / 38% W 16 G 26 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 35 05 PM Fri Jun 06 2025 54F 43F / 40% WNW 16 G 26 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 36 06 PM Fri Jun 06 2025 50F 42F / 47% W 16 G 25 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.03" / 0.0" 37 07 PM Fri Jun 06 2025 49F 44F / 42% W 17 G 24 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.03" / 0.0" 38 08 PM Fri Jun 06 2025 46F 44F / 33% W 16 G 23 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 39 09 PM Fri Jun 06 2025 42F 41F / 34% WNW 15 G 21 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 40 10 PM Fri Jun 06 2025 41F 41F / 34% WNW 15 G 21 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 41 11 PM Fri Jun 06 2025 41F 40F / 38% WSW 13 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 42 12 AM Sat Jun 07 2025 41F 40F / 40% W 17 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 43 01 AM Sat Jun 07 2025 41F 41F / 37% W 19 G 25 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 44 02 AM Sat Jun 07 2025 42F 41F / 34% WNW 21 G 28 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 45 03 AM Sat Jun 07 2025 42F 41F / 33% WNW 22 G 29 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 46 04 AM Sat Jun 07 2025 41F 41F / 38% W 22 G 29 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 47 05 AM Sat Jun 07 2025 41F 40F / 40% WNW 22 G 28 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 48 06 AM Sat Jun 07 2025 40F 40F / 43% W 21 G 28 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0"