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 28-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 Mon Apr 28 2025 20F 16F / 87% WSW 12 G 23 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon Apr 28 2025 20F 16F / 70% SW 12 G 20 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon Apr 28 2025 19F 16F / 74% SSW 13 G 22 MPH 6600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon Apr 28 2025 19F 16F / 74% SSW 14 G 24 MPH 6600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon Apr 28 2025 19F 15F / 79% SSW 13 G 21 MPH 6500 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon Apr 28 2025 19F 15F / 77% SW 9 G 13 MPH 6400 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon Apr 28 2025 19F 15F / 74% SW 7 G 9 MPH 6400 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon Apr 28 2025 18F 15F / 75% SE 6 G 8 MPH 6400 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon Apr 28 2025 19F 16F / 72% E 4 G 6 MPH 6500 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon Apr 28 2025 22F 18F / 73% E 3 G 6 MPH 6600 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon Apr 28 2025 25F 19F / 85% NW 4 G 7 MPH 7100 FT 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon Apr 28 2025 25F 19F / 95% WNW 8 G 13 MPH 7100 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon Apr 28 2025 28F 21F / 94% NW 10 G 15 MPH 7600 FT 15:1 / 7% 0.06" / 0.9" 0.06" / 0.9" 13 01 PM Mon Apr 28 2025 30F 22F / 85% NW 7 G 14 MPH 7600 FT 14:1 / 7% 0.01" / 0.1" 0.07" / 1.0" 14 02 PM Mon Apr 28 2025 33F 24F / 80% NW 8 G 15 MPH 7500 FT 14:1 / 7% 0.00" / 0.0" 0.07" / 1.0" 15 03 PM Mon Apr 28 2025 34F 25F / 79% NW 10 G 17 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 16 04 PM Mon Apr 28 2025 35F 25F / 80% NW 10 G 18 MPH 7400 FT 12:1 / 8% 0.00" / 0.0" 0.07" / 1.0" 17 05 PM Mon Apr 28 2025 34F 25F / 78% NW 13 G 21 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 18 06 PM Mon Apr 28 2025 31F 24F / 78% NW 15 G 24 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 19 07 PM Mon Apr 28 2025 29F 23F / 81% NW 14 G 22 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 20 08 PM Mon Apr 28 2025 26F 21F / 84% NW 11 G 16 MPH 7800 FT 13:1 / 8% 0.00" / 0.0" 0.07" / 1.0" 21 09 PM Mon Apr 28 2025 24F 21F / 87% NW 9 G 14 MPH 7800 FT 13:1 / 8% 0.00" / 0.0" 0.07" / 1.0" 22 10 PM Mon Apr 28 2025 24F 21F / 75% NNE 6 G 10 MPH 7700 FT 13:1 / 8% 0.00" / 0.0" 0.07" / 1.0" 23 11 PM Mon Apr 28 2025 24F 21F / 72% ESE 7 G 11 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 24 12 AM Tue Apr 29 2025 23F 21F / 76% NNE 8 G 8 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 25 01 AM Tue Apr 29 2025 23F 21F / 73% N 6 G 9 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 26 02 AM Tue Apr 29 2025 23F 21F / 65% WNW 9 G 12 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 27 03 AM Tue Apr 29 2025 23F 21F / 67% NW 9 G 15 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 28 04 AM Tue Apr 29 2025 23F 21F / 68% NNW 10 G 13 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 29 05 AM Tue Apr 29 2025 22F 21F / 69% NNW 10 G 12 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 30 06 AM Tue Apr 29 2025 23F 21F / 73% N 10 G 12 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 31 07 AM Tue Apr 29 2025 23F 21F / 73% NNE 9 G 13 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 32 08 AM Tue Apr 29 2025 24F 21F / 72% NE 9 G 13 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 33 09 AM Tue Apr 29 2025 27F 23F / 72% ENE 9 G 12 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 34 10 AM Tue Apr 29 2025 29F 24F / 75% N 7 G 10 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 35 11 AM Tue Apr 29 2025 32F 25F / 88% NW 5 G 9 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.07" / 1.0" 36 12 PM Tue Apr 29 2025 34F 27F / 78% NNW 6 G 11 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 37 01 PM Tue Apr 29 2025 36F 30F / 81% W 4 G 10 MPH 8600 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 38 02 PM Tue Apr 29 2025 36F 31F / 80% WNW 5 G 12 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 39 03 PM Tue Apr 29 2025 39F 31F / 78% WNW 7 G 11 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 40 04 PM Tue Apr 29 2025 39F 31F / 82% WNW 8 G 14 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 41 05 PM Tue Apr 29 2025 39F 31F / 77% WNW 10 G 19 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 42 06 PM Tue Apr 29 2025 36F 31F / 83% WNW 10 G 17 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 43 07 PM Tue Apr 29 2025 34F 28F / 85% WNW 13 G 19 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 44 08 PM Tue Apr 29 2025 30F 28F / 69% W 10 G 16 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.07" / 1.0" 45 09 PM Tue Apr 29 2025 29F 27F / 53% W 12 G 19 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.07" / 1.0" 46 10 PM Tue Apr 29 2025 28F 27F / 50% W 13 G 20 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.07" / 1.0" 47 11 PM Tue Apr 29 2025 28F 27F / 48% WNW 15 G 22 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.07" / 1.0" 48 12 AM Wed Apr 30 2025 28F 26F / 62% WNW 14 G 24 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.07" / 1.0"