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 04-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 Wed Jun 04 2025 34F 31F / 56% WSW 18 G 26 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Jun 04 2025 34F 32F / 55% WSW 15 G 20 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Jun 04 2025 37F 33F / 57% WSW 15 G 22 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Jun 04 2025 39F 34F / 52% WSW 14 G 20 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Jun 04 2025 41F 35F / 56% WSW 11 G 17 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Jun 04 2025 44F 36F / 50% SW 9 G 16 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Jun 04 2025 47F 38F / 43% SW 9 G 17 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Jun 04 2025 49F 40F / 41% SW 8 G 17 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Jun 04 2025 52F 42F / 39% SW 7 G 16 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Jun 04 2025 53F 43F / 36% WSW 9 G 19 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Jun 04 2025 53F 44F / 39% W 8 G 15 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Jun 04 2025 52F 42F / 41% W 10 G 17 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Jun 04 2025 49F 41F / 43% W 12 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Jun 04 2025 46F 40F / 45% W 12 G 19 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Jun 04 2025 43F 38F / 49% W 13 G 19 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Jun 04 2025 40F 37F / 44% WSW 16 G 22 MPH 9400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Jun 04 2025 38F 36F / 37% WSW 18 G 26 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Jun 04 2025 39F 36F / 32% W 20 G 27 MPH 9100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Jun 05 2025 38F 36F / 28% W 19 G 27 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Jun 05 2025 38F 36F / 24% W 17 G 23 MPH 9800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Jun 05 2025 37F 36F / 28% WSW 16 G 22 MPH 9700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Jun 05 2025 38F 36F / 28% WSW 16 G 21 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Jun 05 2025 38F 35F / 34% WSW 15 G 22 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Jun 05 2025 37F 35F / 30% WSW 16 G 24 MPH 9600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Jun 05 2025 37F 35F / 32% WSW 16 G 23 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Jun 05 2025 37F 34F / 36% WSW 16 G 23 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Jun 05 2025 38F 35F / 33% SW 16 G 24 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Jun 05 2025 39F 36F / 53% SSW 15 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Jun 05 2025 42F 36F / 71% SW 12 G 20 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Jun 05 2025 46F 38F / 72% SW 10 G 20 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Jun 05 2025 49F 39F / 70% WSW 10 G 20 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Jun 05 2025 51F 41F / 56% WSW 11 G 22 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Jun 05 2025 51F 41F / 55% WSW 11 G 20 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Jun 05 2025 50F 41F / 62% W 14 G 25 MPH 11000 FT 0:1 / -% 0.03" / 0.0" 0.03" / 0.0" 34 04 PM Thu Jun 05 2025 54F 42F / 43% WNW 15 G 24 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 35 05 PM Thu Jun 05 2025 53F 43F / 42% W 14 G 23 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 36 06 PM Thu Jun 05 2025 50F 42F / 39% W 15 G 23 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 37 07 PM Thu Jun 05 2025 50F 44F / 40% W 16 G 26 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 38 08 PM Thu Jun 05 2025 46F 43F / 35% W 17 G 25 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 39 09 PM Thu Jun 05 2025 42F 40F / 36% W 18 G 24 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 40 10 PM Thu Jun 05 2025 42F 41F / 33% W 19 G 27 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 41 11 PM Thu Jun 05 2025 42F 40F / 31% W 17 G 25 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 42 12 AM Fri Jun 06 2025 42F 40F / 34% WSW 17 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 43 01 AM Fri Jun 06 2025 38F 38F / 51% SSW 14 G 22 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 44 02 AM Fri Jun 06 2025 39F 38F / 46% W 14 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 45 03 AM Fri Jun 06 2025 39F 38F / 39% WSW 17 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 46 04 AM Fri Jun 06 2025 39F 37F / 53% WSW 15 G 22 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 47 05 AM Fri Jun 06 2025 38F 37F / 56% W 16 G 22 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0" 48 06 AM Fri Jun 06 2025 37F 36F / 53% WSW 18 G 25 MPH 11800 FT 0:1 / -% 0.00" / 0.0" 0.03" / 0.0"