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 29-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 12 AM Tue Apr 29 2025 23F 21F / 74% ENE 5 G 7 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Tue Apr 29 2025 23F 21F / 82% SSW 5 G 6 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Tue Apr 29 2025 23F 21F / 76% N 6 G 8 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Tue Apr 29 2025 23F 21F / 76% ENE 6 G 10 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Tue Apr 29 2025 23F 21F / 71% E 8 G 11 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Tue Apr 29 2025 23F 21F / 63% ENE 8 G 9 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Tue Apr 29 2025 23F 21F / 65% NE 7 G 8 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Tue Apr 29 2025 23F 21F / 62% ENE 6 G 9 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Tue Apr 29 2025 24F 21F / 66% NNE 7 G 9 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Tue Apr 29 2025 27F 24F / 68% NNE 6 G 9 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Tue Apr 29 2025 29F 24F / 72% E 6 G 8 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Tue Apr 29 2025 32F 25F / 84% ENE 4 G 8 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Tue Apr 29 2025 35F 28F / 80% WNW 4 G 7 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Tue Apr 29 2025 37F 29F / 83% NNW 4 G 9 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Tue Apr 29 2025 38F 30F / 85% NW 5 G 11 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Tue Apr 29 2025 40F 31F / 79% WNW 6 G 10 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Tue Apr 29 2025 40F 31F / 73% WNW 6 G 13 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Tue Apr 29 2025 39F 31F / 70% WNW 9 G 16 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Tue Apr 29 2025 36F 30F / 71% WNW 10 G 17 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Tue Apr 29 2025 33F 28F / 64% WNW 9 G 16 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Tue Apr 29 2025 30F 26F / 64% W 10 G 15 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Tue Apr 29 2025 29F 26F / 59% W 12 G 19 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Tue Apr 29 2025 29F 26F / 43% W 12 G 18 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Tue Apr 29 2025 29F 27F / 49% WNW 14 G 20 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Wed Apr 30 2025 29F 26F / 65% WNW 18 G 25 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Wed Apr 30 2025 28F 26F / 58% WNW 18 G 27 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Wed Apr 30 2025 29F 25F / 66% WNW 17 G 24 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Wed Apr 30 2025 29F 25F / 74% WNW 15 G 22 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Wed Apr 30 2025 28F 25F / 79% WNW 15 G 22 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Wed Apr 30 2025 28F 25F / 80% WNW 15 G 21 MPH 8600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Wed Apr 30 2025 27F 24F / 80% WNW 16 G 22 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Wed Apr 30 2025 27F 24F / 74% W 15 G 23 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Wed Apr 30 2025 28F 24F / 77% W 17 G 22 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Wed Apr 30 2025 29F 25F / 90% W 18 G 25 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Wed Apr 30 2025 30F 24F / 96% W 18 G 29 MPH 8600 FT 7:1 / 14% 0.03" / 0.2" 0.03" / 0.2" 35 11 AM Wed Apr 30 2025 32F 26F / 93% W 16 G 27 MPH 8700 FT 8:1 / 12% 0.02" / 0.2" 0.05" / 0.4" 36 12 PM Wed Apr 30 2025 33F 27F / 98% W 16 G 27 MPH 9000 FT 8:1 / 12% 0.01" / 0.1" 0.06" / 0.5" 37 01 PM Wed Apr 30 2025 35F 29F / 94% W 16 G 28 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.06" / 0.5" 38 02 PM Wed Apr 30 2025 35F 29F / 96% W 16 G 28 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.06" / 0.5" 39 03 PM Wed Apr 30 2025 36F 29F / 96% W 16 G 26 MPH 9200 FT 9:1 / 11% 0.03" / 0.3" 0.09" / 0.8" 40 04 PM Wed Apr 30 2025 35F 29F / 99% W 16 G 28 MPH 9300 FT 9:1 / 11% 0.02" / 0.2" 0.11" / 1.0" 41 05 PM Wed Apr 30 2025 34F 29F / 100% WNW 16 G 29 MPH 9200 FT 9:1 / 11% 0.01" / 0.1" 0.12" / 1.1" 42 06 PM Wed Apr 30 2025 32F 27F / 100% W 15 G 26 MPH 9100 FT 8:1 / 12% 0.04" / 0.3" 0.16" / 1.4" 43 07 PM Wed Apr 30 2025 32F 27F / 100% WNW 16 G 24 MPH 9200 FT 9:1 / 11% 0.01" / 0.1" 0.17" / 1.5" 44 08 PM Wed Apr 30 2025 31F 27F / 100% W 14 G 21 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.17" / 1.5" 45 09 PM Wed Apr 30 2025 29F 26F / 93% W 13 G 21 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.17" / 1.5" 46 10 PM Wed Apr 30 2025 28F 25F / 100% WNW 15 G 23 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.17" / 1.5" 47 11 PM Wed Apr 30 2025 28F 26F / 99% NW 16 G 22 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.17" / 1.5" 48 12 AM Thu May 01 2025 27F 25F / 87% SE 14 G 19 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.17" / 1.5"