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 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 06 PM Mon Apr 28 2025 30F 23F / 96% NW 10 G 18 MPH 7600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Mon Apr 28 2025 29F 23F / 83% NW 10 G 16 MPH 7600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Mon Apr 28 2025 26F 21F / 83% NW 7 G 11 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Mon Apr 28 2025 24F 21F / 77% SSE 7 G 10 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Mon Apr 28 2025 24F 21F / 73% ENE 5 G 7 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Mon Apr 28 2025 23F 21F / 79% NNW 6 G 8 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Tue Apr 29 2025 23F 21F / 76% ENE 4 G 6 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Tue Apr 29 2025 23F 21F / 85% ENE 4 G 7 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Tue Apr 29 2025 23F 21F / 77% N 5 G 8 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Tue Apr 29 2025 23F 22F / 72% NNE 6 G 9 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Tue Apr 29 2025 23F 22F / 66% NE 7 G 11 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Tue Apr 29 2025 24F 22F / 65% ENE 9 G 13 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Tue Apr 29 2025 24F 22F / 62% E 11 G 15 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Tue Apr 29 2025 24F 22F / 63% E 9 G 13 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Tue Apr 29 2025 24F 22F / 64% E 9 G 13 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Tue Apr 29 2025 27F 24F / 65% SSE 7 G 11 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Tue Apr 29 2025 30F 25F / 62% WNW 5 G 9 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Tue Apr 29 2025 32F 25F / 65% NW 4 G 6 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Tue Apr 29 2025 34F 28F / 63% NW 4 G 7 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Tue Apr 29 2025 37F 29F / 82% NW 2 G 7 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Tue Apr 29 2025 38F 30F / 77% WNW 5 G 9 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Tue Apr 29 2025 39F 30F / 72% WNW 6 G 11 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Tue Apr 29 2025 39F 31F / 70% WNW 7 G 14 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Tue Apr 29 2025 39F 31F / 65% WNW 9 G 18 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Tue Apr 29 2025 35F 30F / 57% WNW 9 G 17 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Tue Apr 29 2025 33F 28F / 57% WNW 10 G 18 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Tue Apr 29 2025 30F 26F / 56% W 10 G 16 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Tue Apr 29 2025 28F 26F / 53% W 10 G 16 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Tue Apr 29 2025 29F 27F / 45% W 11 G 16 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Tue Apr 29 2025 29F 27F / 44% W 11 G 15 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Wed Apr 30 2025 27F 25F / 50% WNW 11 G 16 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Wed Apr 30 2025 28F 25F / 60% WNW 14 G 20 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Wed Apr 30 2025 28F 25F / 68% WNW 15 G 23 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Wed Apr 30 2025 28F 24F / 81% WNW 15 G 21 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Wed Apr 30 2025 28F 24F / 87% WNW 16 G 24 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Wed Apr 30 2025 28F 24F / 94% WNW 16 G 25 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Wed Apr 30 2025 28F 24F / 98% W 15 G 24 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Wed Apr 30 2025 27F 23F / 100% W 17 G 25 MPH 9000 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 38 08 AM Wed Apr 30 2025 30F 25F / 100% W 16 G 25 MPH 8900 FT 8:1 / 12% 0.01" / 0.1" 0.02" / 0.2" 39 09 AM Wed Apr 30 2025 30F 26F / 98% W 16 G 24 MPH 8700 FT 8:1 / 12% 0.02" / 0.2" 0.04" / 0.4" 40 10 AM Wed Apr 30 2025 30F 26F / 99% W 15 G 24 MPH 8500 FT 8:1 / 12% 0.06" / 0.5" 0.10" / 0.9" 41 11 AM Wed Apr 30 2025 31F 26F / 99% W 16 G 23 MPH 8500 FT 8:1 / 12% 0.01" / 0.1" 0.11" / 1.0" 42 12 PM Wed Apr 30 2025 33F 27F / 96% W 15 G 25 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.11" / 1.0" 43 01 PM Wed Apr 30 2025 35F 28F / 96% W 16 G 27 MPH 8600 FT 8:1 / 12% 0.01" / 0.1" 0.12" / 1.1" 44 02 PM Wed Apr 30 2025 35F 28F / 94% W 17 G 28 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.1" 45 03 PM Wed Apr 30 2025 35F 28F / 98% W 18 G 27 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.1" 46 04 PM Wed Apr 30 2025 35F 28F / 99% W 16 G 26 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.1" 47 05 PM Wed Apr 30 2025 34F 28F / 96% WNW 14 G 23 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.1" 48 06 PM Wed Apr 30 2025 32F 27F / 99% W 15 G 22 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.1"