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 21-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 Sat Jun 21 2025 52F 42F / 38% SSW 22 G 49 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sat Jun 21 2025 51F 41F / 41% S 25 G 58 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sat Jun 21 2025 52F 41F / 44% SSW 23 G 53 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sat Jun 21 2025 53F 43F / 39% SSW 21 G 49 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sat Jun 21 2025 54F 44F / 41% SSW 18 G 44 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sat Jun 21 2025 55F 45F / 36% S 18 G 41 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sat Jun 21 2025 55F 47F / 32% SSW 18 G 40 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sat Jun 21 2025 49F 44F / 42% SSW 13 G 31 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sat Jun 21 2025 44F 41F / 44% SSW 16 G 33 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sat Jun 21 2025 39F 35F / 69% W 14 G 29 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sat Jun 21 2025 34F 31F / 63% W 10 G 22 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sat Jun 21 2025 31F 27F / 80% WNW 13 G 24 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Sun Jun 22 2025 31F 24F / 88% WNW 11 G 26 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Sun Jun 22 2025 30F 24F / 92% WNW 14 G 29 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Sun Jun 22 2025 30F 23F / 92% WNW 14 G 26 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Sun Jun 22 2025 30F 24F / 97% W 12 G 25 MPH 7400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Sun Jun 22 2025 30F 24F / 100% WSW 12 G 20 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Sun Jun 22 2025 29F 23F / 100% SW 10 G 19 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Sun Jun 22 2025 28F 24F / 100% WSW 14 G 25 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Sun Jun 22 2025 29F 23F / 100% WSW 15 G 27 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Sun Jun 22 2025 28F 22F / 100% WSW 15 G 26 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Sun Jun 22 2025 28F 23F / 77% WSW 15 G 24 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Sun Jun 22 2025 30F 23F / 83% WSW 11 G 22 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Sun Jun 22 2025 33F 25F / 75% WSW 11 G 20 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Sun Jun 22 2025 36F 27F / 57% W 11 G 21 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Sun Jun 22 2025 37F 28F / 65% WSW 11 G 21 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Sun Jun 22 2025 39F 29F / 69% WSW 11 G 22 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Sun Jun 22 2025 40F 29F / 62% W 13 G 24 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Sun Jun 22 2025 40F 30F / 69% WSW 13 G 24 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Sun Jun 22 2025 40F 30F / 66% W 15 G 26 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Sun Jun 22 2025 38F 30F / 61% W 15 G 25 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Sun Jun 22 2025 36F 30F / 55% W 14 G 24 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Sun Jun 22 2025 33F 29F / 58% W 14 G 22 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Sun Jun 22 2025 32F 29F / 48% W 15 G 22 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Sun Jun 22 2025 32F 30F / 45% WSW 15 G 20 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Sun Jun 22 2025 31F 30F / 52% W 17 G 22 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Mon Jun 23 2025 31F 30F / 53% W 15 G 20 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Mon Jun 23 2025 31F 31F / 51% W 18 G 24 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Mon Jun 23 2025 32F 32F / 46% W 16 G 24 MPH 8200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Mon Jun 23 2025 33F 32F / 40% W 15 G 21 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Mon Jun 23 2025 33F 33F / 41% W 15 G 22 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Mon Jun 23 2025 34F 33F / 38% WSW 15 G 22 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Mon Jun 23 2025 34F 33F / 38% WSW 13 G 18 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Mon Jun 23 2025 35F 34F / 39% SW 14 G 19 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Mon Jun 23 2025 37F 36F / 35% SW 13 G 21 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Mon Jun 23 2025 38F 37F / 39% SW 13 G 21 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Mon Jun 23 2025 41F 38F / 34% SSW 11 G 20 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Mon Jun 23 2025 47F 39F / 30% SSW 9 G 17 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Mon Jun 23 2025 50F 42F / 25% SSW 7 G 16 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"