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 23-Aug-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 Sat Aug 23 2025 54F 53F / 53% SW 11 G 14 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat Aug 23 2025 53F 53F / 49% WSW 9 G 13 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat Aug 23 2025 54F 53F / 44% WNW 10 G 12 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat Aug 23 2025 54F 53F / 39% W 8 G 12 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat Aug 23 2025 53F 52F / 35% W 10 G 14 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat Aug 23 2025 54F 52F / 36% W 12 G 18 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat Aug 23 2025 53F 52F / 35% W 12 G 17 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat Aug 23 2025 52F 51F / 50% WSW 12 G 17 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat Aug 23 2025 52F 52F / 43% WSW 12 G 18 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat Aug 23 2025 55F 53F / 38% W 14 G 18 MPH 14300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat Aug 23 2025 58F 53F / 30% W 11 G 18 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat Aug 23 2025 64F 56F / 27% W 11 G 20 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat Aug 23 2025 66F 57F / 26% WNW 12 G 18 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat Aug 23 2025 67F 58F / 27% WNW 11 G 18 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat Aug 23 2025 69F 58F / 25% WNW 11 G 18 MPH 15000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat Aug 23 2025 68F 59F / 24% WNW 12 G 19 MPH 14900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat Aug 23 2025 68F 59F / 23% WNW 12 G 20 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat Aug 23 2025 66F 59F / 28% W 10 G 17 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat Aug 23 2025 63F 57F / 33% WNW 12 G 19 MPH 14400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat Aug 23 2025 61F 56F / 21% WNW 13 G 17 MPH 14700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat Aug 23 2025 57F 54F / 34% WNW 12 G 17 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat Aug 23 2025 56F 53F / 34% WNW 14 G 23 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat Aug 23 2025 55F 53F / 31% SW 10 G 14 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat Aug 23 2025 54F 53F / 42% WSW 12 G 17 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun Aug 24 2025 54F 52F / 34% WSW 15 G 23 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun Aug 24 2025 53F 51F / 33% WSW 15 G 21 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun Aug 24 2025 53F 51F / 50% WSW 12 G 14 MPH 15000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun Aug 24 2025 53F 51F / 35% WSW 10 G 14 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun Aug 24 2025 52F 50F / 47% WSW 13 G 18 MPH 15200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun Aug 24 2025 52F 50F / 53% W 11 G 15 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun Aug 24 2025 51F 49F / 60% WNW 12 G 16 MPH 15000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun Aug 24 2025 50F 48F / 60% W 15 G 23 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun Aug 24 2025 51F 49F / 60% W 17 G 23 MPH 15000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun Aug 24 2025 52F 49F / 67% WNW 15 G 21 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun Aug 24 2025 54F 50F / 63% WNW 12 G 21 MPH 15100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun Aug 24 2025 57F 50F / 60% WNW 9 G 18 MPH 14900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun Aug 24 2025 56F 50F / 69% W 9 G 17 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sun Aug 24 2025 56F 52F / 63% W 10 G 22 MPH 14700 FT 0:1 / -% 0.06" / 0.0" 0.06" / 0.0" 38 02 PM Sun Aug 24 2025 56F 50F / 76% SSE 8 G 25 MPH 14800 FT 0:1 / -% 0.01" / 0.0" 0.07" / 0.0" 39 03 PM Sun Aug 24 2025 52F 46F / 80% SW 11 G 23 MPH 14200 FT 0:1 / -% 0.07" / 0.0" 0.14" / 0.0" 40 04 PM Sun Aug 24 2025 56F 52F / 77% WSW 16 G 29 MPH 14600 FT 0:1 / -% 0.02" / 0.0" 0.16" / 0.0" 41 05 PM Sun Aug 24 2025 59F 52F / 85% W 11 G 19 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 42 06 PM Sun Aug 24 2025 58F 52F / 76% W 10 G 18 MPH 14200 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 43 07 PM Sun Aug 24 2025 56F 52F / 99% WNW 13 G 19 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 44 08 PM Sun Aug 24 2025 52F 50F / 95% W 9 G 15 MPH 14600 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 45 09 PM Sun Aug 24 2025 51F 50F / 75% WNW 11 G 18 MPH 14800 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 46 10 PM Sun Aug 24 2025 51F 50F / 84% W 12 G 18 MPH 14500 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.0" 47 11 PM Sun Aug 24 2025 47F 47F / 85% NW 10 G 12 MPH 14300 FT 0:1 / -% 0.05" / 0.0" 0.21" / 0.0" 48 12 AM Mon Aug 25 2025 48F 46F / 77% SE 15 G 24 MPH 14200 FT 0:1 / -% 0.01" / 0.0" 0.22" / 0.0"