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 00Z 21-Apr-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 PM Sun Apr 20 2025 36F 29F / 57% WSW 12 G 22 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sun Apr 20 2025 33F 28F / 59% WSW 13 G 21 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Sun Apr 20 2025 31F 27F / 60% WSW 13 G 20 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Sun Apr 20 2025 30F 27F / 50% SW 18 G 28 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Sun Apr 20 2025 29F 27F / 50% SW 20 G 31 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Sun Apr 20 2025 30F 27F / 48% SW 20 G 32 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Mon Apr 21 2025 29F 28F / 49% SW 22 G 35 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Mon Apr 21 2025 30F 28F / 45% SW 23 G 39 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Mon Apr 21 2025 30F 28F / 43% SSW 23 G 40 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Mon Apr 21 2025 29F 27F / 46% SW 25 G 40 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Mon Apr 21 2025 29F 26F / 45% WSW 24 G 42 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Mon Apr 21 2025 27F 24F / 51% W 22 G 35 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Mon Apr 21 2025 26F 23F / 62% W 19 G 29 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Mon Apr 21 2025 26F 23F / 66% W 23 G 35 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Mon Apr 21 2025 26F 23F / 73% W 26 G 41 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Mon Apr 21 2025 28F 23F / 81% W 24 G 37 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Mon Apr 21 2025 29F 23F / 70% W 23 G 35 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Mon Apr 21 2025 31F 23F / 71% W 20 G 32 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Mon Apr 21 2025 32F 23F / 70% W 19 G 32 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Mon Apr 21 2025 34F 24F / 66% W 18 G 30 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Mon Apr 21 2025 36F 25F / 65% W 16 G 28 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Mon Apr 21 2025 37F 26F / 59% W 15 G 25 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Mon Apr 21 2025 36F 27F / 60% W 15 G 26 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Mon Apr 21 2025 36F 27F / 61% W 16 G 25 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Mon Apr 21 2025 33F 27F / 58% W 16 G 27 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Mon Apr 21 2025 31F 26F / 59% W 18 G 29 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Mon Apr 21 2025 28F 25F / 53% W 21 G 31 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Mon Apr 21 2025 27F 25F / 47% W 22 G 33 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Mon Apr 21 2025 27F 25F / 46% W 21 G 30 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Mon Apr 21 2025 27F 25F / 45% W 22 G 31 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Tue Apr 22 2025 27F 25F / 44% W 21 G 31 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Tue Apr 22 2025 27F 25F / 41% W 21 G 31 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Tue Apr 22 2025 27F 25F / 41% W 23 G 32 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Tue Apr 22 2025 27F 25F / 41% W 21 G 32 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Tue Apr 22 2025 27F 25F / 41% W 23 G 34 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Tue Apr 22 2025 27F 24F / 39% W 22 G 31 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Tue Apr 22 2025 26F 24F / 42% W 21 G 30 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Tue Apr 22 2025 26F 25F / 39% W 22 G 30 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Tue Apr 22 2025 27F 26F / 37% W 20 G 30 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Tue Apr 22 2025 29F 28F / 43% W 19 G 28 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Tue Apr 22 2025 32F 28F / 38% W 16 G 25 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Tue Apr 22 2025 35F 28F / 41% W 14 G 23 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Tue Apr 22 2025 37F 29F / 40% W 13 G 23 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Tue Apr 22 2025 38F 30F / 47% WSW 13 G 21 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Tue Apr 22 2025 41F 31F / 51% WSW 12 G 22 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Tue Apr 22 2025 42F 31F / 53% W 11 G 21 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Tue Apr 22 2025 41F 32F / 56% WSW 11 G 21 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Tue Apr 22 2025 41F 33F / 52% WSW 11 G 19 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Tue Apr 22 2025 39F 33F / 57% W 12 G 20 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"