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 06Z 24-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 12 AM Tue Jun 24 2025 39F 39F / 33% ESE 9 G 14 MPH 9500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Tue Jun 24 2025 39F 39F / 28% ESE 9 G 16 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Tue Jun 24 2025 39F 39F / 29% ESE 10 G 18 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Tue Jun 24 2025 40F 40F / 25% ESE 12 G 24 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Tue Jun 24 2025 43F 40F / 27% ESE 16 G 31 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Tue Jun 24 2025 43F 40F / 30% SE 19 G 37 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Tue Jun 24 2025 42F 39F / 34% SE 19 G 35 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Tue Jun 24 2025 41F 39F / 36% SE 16 G 32 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Tue Jun 24 2025 42F 40F / 36% SSE 15 G 27 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Tue Jun 24 2025 43F 40F / 38% SSE 13 G 24 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Tue Jun 24 2025 46F 40F / 34% S 12 G 24 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Tue Jun 24 2025 50F 42F / 38% S 10 G 22 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Tue Jun 24 2025 52F 43F / 30% SSW 11 G 22 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Tue Jun 24 2025 53F 43F / 29% SSW 10 G 22 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Tue Jun 24 2025 54F 44F / 26% SSW 11 G 24 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Tue Jun 24 2025 55F 45F / 23% SW 11 G 22 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Tue Jun 24 2025 56F 46F / 24% SW 11 G 22 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Tue Jun 24 2025 56F 47F / 22% SW 12 G 25 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Tue Jun 24 2025 54F 46F / 21% SW 12 G 23 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Tue Jun 24 2025 51F 46F / 28% SW 11 G 18 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Tue Jun 24 2025 47F 43F / 35% W 11 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Tue Jun 24 2025 44F 42F / 34% W 12 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Tue Jun 24 2025 43F 41F / 34% W 12 G 16 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Tue Jun 24 2025 42F 41F / 34% W 11 G 16 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Wed Jun 25 2025 42F 40F / 33% W 11 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Wed Jun 25 2025 41F 40F / 28% W 11 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Wed Jun 25 2025 42F 41F / 27% W 13 G 16 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Wed Jun 25 2025 43F 41F / 25% WSW 13 G 17 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Wed Jun 25 2025 42F 41F / 27% W 15 G 22 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Wed Jun 25 2025 42F 41F / 30% W 15 G 22 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Wed Jun 25 2025 42F 41F / 31% W 14 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Wed Jun 25 2025 41F 39F / 32% W 13 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Wed Jun 25 2025 43F 41F / 29% W 14 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Wed Jun 25 2025 44F 41F / 36% WSW 13 G 18 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Wed Jun 25 2025 47F 42F / 35% WSW 10 G 17 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Wed Jun 25 2025 51F 43F / 30% W 8 G 16 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Wed Jun 25 2025 53F 45F / 29% WSW 8 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Wed Jun 25 2025 57F 50F / 22% W 9 G 17 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Wed Jun 25 2025 58F 50F / 19% W 10 G 20 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Wed Jun 25 2025 59F 50F / 28% W 10 G 19 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Wed Jun 25 2025 59F 50F / 24% W 11 G 20 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Wed Jun 25 2025 59F 50F / 25% W 12 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Wed Jun 25 2025 56F 50F / 17% W 14 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Wed Jun 25 2025 53F 49F / 20% W 16 G 23 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Wed Jun 25 2025 51F 48F / 22% W 14 G 21 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Wed Jun 25 2025 46F 46F / 25% W 13 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Wed Jun 25 2025 45F 45F / 18% WSW 13 G 19 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Wed Jun 25 2025 44F 45F / 19% WSW 14 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Thu Jun 26 2025 44F 44F / 19% W 14 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0"