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 23-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 PM Mon Jun 23 2025 47F 39F / 40% SSE 5 G 12 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Mon Jun 23 2025 49F 41F / 29% SSE 5 G 11 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Mon Jun 23 2025 52F 42F / 27% S 6 G 16 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Mon Jun 23 2025 52F 43F / 27% SSE 7 G 18 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Mon Jun 23 2025 52F 43F / 27% S 7 G 17 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Mon Jun 23 2025 52F 44F / 22% S 7 G 16 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Mon Jun 23 2025 50F 45F / 28% SW 7 G 14 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Mon Jun 23 2025 48F 43F / 28% SW 6 G 14 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Mon Jun 23 2025 45F 41F / 32% S 8 G 16 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Mon Jun 23 2025 42F 41F / 29% SSE 9 G 16 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Mon Jun 23 2025 41F 41F / 31% SSE 8 G 12 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Mon Jun 23 2025 40F 40F / 29% SSE 8 G 12 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Tue Jun 24 2025 40F 39F / 30% SE 8 G 13 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Tue Jun 24 2025 39F 40F / 27% S 9 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Tue Jun 24 2025 40F 40F / 26% S 8 G 13 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Tue Jun 24 2025 40F 40F / 27% SSW 9 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Tue Jun 24 2025 42F 41F / 27% S 9 G 15 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Tue Jun 24 2025 42F 41F / 28% S 10 G 17 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Tue Jun 24 2025 42F 40F / 23% S 11 G 17 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Tue Jun 24 2025 42F 40F / 24% SSW 11 G 16 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Tue Jun 24 2025 42F 40F / 27% SW 12 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Tue Jun 24 2025 44F 40F / 34% SW 12 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Tue Jun 24 2025 46F 41F / 31% SSW 10 G 19 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Tue Jun 24 2025 50F 42F / 31% SSW 10 G 21 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Tue Jun 24 2025 53F 43F / 32% SSW 9 G 19 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Tue Jun 24 2025 54F 44F / 30% S 10 G 22 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Tue Jun 24 2025 55F 45F / 31% SSW 10 G 24 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Tue Jun 24 2025 56F 46F / 27% SSW 12 G 25 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Tue Jun 24 2025 56F 46F / 27% SSW 11 G 24 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Tue Jun 24 2025 56F 47F / 23% SW 13 G 26 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Tue Jun 24 2025 54F 47F / 25% WSW 14 G 24 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Tue Jun 24 2025 51F 45F / 32% WSW 10 G 18 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Tue Jun 24 2025 48F 43F / 35% WSW 12 G 20 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Tue Jun 24 2025 45F 42F / 35% W 13 G 20 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Tue Jun 24 2025 44F 42F / 34% W 12 G 19 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Tue Jun 24 2025 43F 41F / 35% W 13 G 18 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Wed Jun 25 2025 42F 41F / 35% W 12 G 15 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Wed Jun 25 2025 43F 42F / 37% SW 14 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Wed Jun 25 2025 43F 43F / 39% WSW 13 G 18 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Wed Jun 25 2025 44F 43F / 35% SW 13 G 19 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Wed Jun 25 2025 43F 43F / 34% WSW 14 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Wed Jun 25 2025 44F 43F / 29% WSW 15 G 23 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Wed Jun 25 2025 44F 43F / 28% WSW 15 G 22 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Wed Jun 25 2025 43F 42F / 35% SW 14 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Wed Jun 25 2025 44F 44F / 30% SW 12 G 21 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Wed Jun 25 2025 46F 45F / 37% SW 12 G 19 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Wed Jun 25 2025 48F 45F / 33% SSW 9 G 16 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Wed Jun 25 2025 53F 46F / 28% SW 8 G 14 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Wed Jun 25 2025 57F 48F / 28% SSW 7 G 16 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"